4.7 SR 06-01-2020City of
Elk*
River
Request for Action
To
Item Number
Mayor and City Council
4.7
Agenda Section
Meeting Date
Prepared by
Consent
June 1, 2020
Mark Dickinson, Fire Chief
Item Description
Reviewed by
Sherburne County All -Hazard Mitigation Action
Cal Portner, City Administrator
Plan
Reviewed by
Action Requested
Approve, by motion, a resolution adopting the Sherburne County All -Hazard Mitigation Plan.
Background/Discussion
This Multi -Hazard Mitigation Plan evaluates and ranks the major natural hazards affecting Sherburne County as
determined by frequency of event, economic impact, deaths, and injuries.
Mitigation recommendations were based on input from local agencies within Sherburne County and has been
approved by FEMA.
Adopting this plan is a required condition for receiving certain types of non -emergency disaster assistance as
well as mitigation projects. The All -Hazard Mitigation Plan has already been adopted by Sherburne County.
Financial Impact
None
Attachments
■ Resolution
■ Sherburne County Multi -hazard Mitigation Plan
The Elk River Vision
A welcoming community with revolutionary and spirited resourcefulness, exceptional,` 01 e
service, and community engagement that encourages and inspires pi ospei ly INAWRE1
City of
Elk
River
City of Elk River
City Council
Resolution 20-
A Resolution of the City Council of the City of Elk River the Adoption of the
Sherburne County All -Hazard Mitigation Plan
WHEREAS, the City of Elk River has participated in the hazard mitigation planning
process as established under the Disaster Mitigation Act of 2000; and
WHEREAS, the Act establishes a framework for the development of a multi -jurisdictional
County Hazard Mitigation Plan; and
WHEREAS, the Act as part of the planning process requires public involvement and local
coordination among neighboring local units of government and businesses; and
WHEREAS, the Sherburne County Plan includes a risk assessment including past hazards,
hazards that threaten the County, an estimate of structures at risk, a general description of
land uses and development trends; and
WHEREAS, the Sherburne County Plan includes a mitigation strategy including goals and
objectives and an action plan identifying specific mitigation projects and costs; and
WHEREAS, the Sherburne County Plan includes a maintenance or implementation
process including plan updates, integration of the plan into other planning documents and
how Sherburne County will maintain public participation and coordination; and
WHEREAS, the Plan has been shared with the Minnesota Division of Homeland Security
and Emergency Management and the Federal Emergency Management Agency for review
and comment; and
WHEREAS, the Sherburne County All -Hazard Mitigation Plan will make the county and
participating jurisdictions eligible to receive FEMA hazard mitigation assistance grants; and
WHEREAS, this is a multi -jurisdictional Plan and cities that participated in the planning
process may choose to also adopt the county plan
NOW, THEREFORE, BE IT RESOLVED by the City Council of the City of Elk
River, Minnesota, as follows: the City of Elk River supports the hazard mitigation planning
effort and wishes to adopt the Sherburne County All -Hazard Mitigation Plan.
Passed and adopted this 1st day of June 2020.
John J. Dietz, Mayor
ATTEST:
Tina Allard, City Clerk
i
Multi -Hazard Mitigation Plan
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Sherburne County Multi -Hazard Mitigation Plan, 2020
Contact:
Kyle Breffle, Director
Sherburne County Emergency Management
3.388o Business Center Drive, Suite ioo
Elk River, MN 55330
Kyle. Brefflena co.sherburne.mn.us
763-765-3500
Prepared By.
U-SpatialQa UMD
Research Computing I Office of the Vice President for Research
386 Kirby Plaza
3.208 Kirby Drive
University of Minnesota Duluth
Duluth, MN 5583.2
Stacey Stark, Associate Director
slstark(a)d.umn.edu
218-726-7438
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Sherburne County Multi -Hazard Mitigation Plan, 2020
Table of Contents
Table of Contents....................................................................
Listof Figures..........................................................................
Listof Tables...........................................................................
Section 1- Introduction..............................................................
1.1 Introduction.................................................................
1.1.1 Scope.......................................................................
1.1.2 Hazard Mitigation Definition ....................................
1.1.3 Benefits of Mitigation Planning ................................
1.2 State Administration of Mitigation Grants ...................
Section 2 — Public Planning Process ............................................
2.1 Steering Committee Information .................................
2.2 Review of Existing Plans, Capabilities & Vulnerabilities
2.3 Planning Process Timeline and Steps ...........................
2.3.1 Sherburne County Stakeholder Coordination ..........
2.3.2 Overview of Jurisdictional Participation ...............
Section 3 — Sherburne County Profile ..........................................
3.1 General County Description .........................................
3.2 Environmental Characteristics .....................................
3.3 Geology.......................................................................
3.4 Hydrography................................................................
3.4.1 Groundwater............................................................
3.4.2 Lakes....................................................................
3.4.3 Rivers.......................................................................
3.4.4 Dam & Levee Inventory ........................................
3.4.5 Wetlands..................................................................
3.5 Climate........................................................................
3.5.1 Climate Change .......................................................
3.6 Demographics.............................................................
3.6.1 Population Vulnerability ..........................................
3.7 Economy......................................................................
3.8 Critical Infrastructure...................................................
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i
.g
10
10
11
11
12
13
13
14
16
16
16
17
17
17
19
19
19
20
21
21
23
25
27
28
Sherburne County Multi -Hazard Mitigation Plan, 2020
3.8.1
Emergency & Shelter Facilities.......................................................................................
28
3.8.2
Infrastructure Systems...............................................................................................
30
3.8.3
High Potential Loss Structures.......................................................................................
32
3.8.4
Significant County Assets...........................................................................................
33
3.9 Land Use and Ownership...................................................................................................
33
3.9.1
Facility Replacement Costs............................................................................................
34
Section 4 —
Risk Assessment.............................................................................................................
35
4.1 Hazard
Identification/Profile..............................................................................................
35
4.1.1
Hazard Identification.....................................................................................................
35
4.1.2
Hazard Prioritization and Vulnerability Assessment by Jurisdiction ...........................
36
4.1.3
Hazard Profiling Concept of Planning............................................................................
38
4.1.4
GIS and Risk Assessment...........................................................................................
38
4.1.5
National Centers for Environmental Information (NCEI) Records...................................39
4.1.6
FEMA Declared Disasters...........................................................................................39
4.2 Future Development..........................................................................................................
41
4.3 Hazard
Profiles..................................................................................................................
41
4.3.1
Tornadoes......................................................................................................................43.
4.3.2
Windstorms................................................................................................................45
4.3.3
Lightning.......................................................................................................................48
4.3.4
Hail.............................................................................................................................
50
4.3.5
Flash Flood and Riverine Flood.......................................................................................
54
4.3.6
Severe Winter Storms— Blizzards, Ice Storms............................................................64
4.3.7
Extreme Cold.................................................................................................................
68
4.3.8
Extreme Heat.............................................................................................................
70
4.3.9
Drought......................................................................................................................74
4.3.10
Wildland fire...............................................................................................................80
4.3.11
Landslides and Soil Erosion........................................................................................84
4.3.12
Dam & Levee Failure..................................................................................................86
Section5—Mitigation
StrategY.........................................................................................................92
5.1 Community
Capability Assessments..................................................................................92
5.1.1
National Flood Insurance Program(NFIP)......................................................................92
5.1.2
Plans and Ordinances.....................................................................................................
93
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Sherburne County Multi -Hazard Mitigation Plan, 2020
5.1.3 Plans and Programs in Place to address Natural Hazards...............................................94
5.2 Mitigation Goals................................................................................................................ 97
5.3 Mitigation Action and Project Strategies........................................................................... 97
5.3.1 Hazard Mitigation Actions.............................................................................................99
5.3.2 Mitigation Actions by Community................................................................................111
Section 6 —Plan Maintenance......................................................................................................... 112
6.1 Monitoring, Evaluation, and Updating the Plan............................................................... 112
6.2 Implementation................................................................................................................12.3
6.3 Continued Public Involvement......................................................................................... 114
APPENDICES...................................................................................................................................... 115
Appendix A Sherburne County Maps........................................................................................................ 1
Appendix B Sherburne County Critical Infrastructures.............................................................................. 1
Appendix C Sherburne County Hazard Events.......................................................................................... 1
Appendix D Adopting Resolutions............................................................................................................ 1
Appendix E Steering Committee Meetings............................................................................................... 1
Appendix F Public Outreach & Engagement Documentation.................................................................... 1
Appendix G Mitigation Actions by Jurisdiction.......................................................................................... 1
Appendix H Past Mitigation Action Review Status Report (2013-2019)..................................................... 1
Appendix/ Works Cited........................................................................................................................... 1
Appendix J Plans & Programs in Place..................................................................................................... 1
Appendix K Local Mitigation Survey Report............................................................................................. i
Appendix L Minnesota Department of Health Climate & Health Report .................................................... 1
List of Figures
Figure 1.
Sherburne County Population by Census Block, 2010.............................................................
24
Figure 2.
Sherburne County Population Change, 1920-2010.................................................................
25
Figure 3.
Sherburne County Population Projections, 2020-2050...........................................................
25
Figure 4.
SVI Themes, ranked by percentile against all MN census tracts, Sherburne County ...............
27
Figure 5.
Fire Departments and Fire Response Times in Minutes in Sherburne County .........................
30
Figure 6.
FEMA Disaster Declarations by County..................................................................................
39
Figure 7. Tornado Touchdowns and Paths, 1950-July 2019...................................................................
43
Figure 8.
Severe Windstorms in Sherburne County, 1955-April 2019.....................................................
47
Figure 9.
Severe Hailstorms in Sherburne County, 1955-April 2019.......................................................
52
Figure 10.
Electric Utility Reported Power Outages by Month in Minnesota (2oo8-2013) ......................
53
Figure 11.
Causes of Electric- Utility Reported Outages in Minnesota (20o8-2013).................................
53
Figure 12.
1%Annual Chance Floodplain (DFIRMs) in Sherburne County ..............................................
58
Figure 13.Overview
of 1%Annual Chance Flood Loss Estimation in Sherburne County .........................
59
Figure 14.
High loss estimations in Palmer and Clear Lake Townships ..................................................
61
Figure 15.
Building Flood Loss Estimation for s%Annual Chance Flood in Princeton City .....................
63
Figure 16.Building
Flood Loss Estimation for 1%Annual Chance Flood in Elk River City .......................
63
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Sherburne County Multi -Hazard Mitigation Plan, 2020
Figure 3.7. Armistice Day Blizzard, 3.940.................................................................................................
65
Figure3.8.
NWS Heat Index...................................................................................................................
73.
Figure 3.9.
Heat Effects on the Body......................................................................................................
73.
Figure 20.
Sequence of drought occurrence and impacts for commonly accepted drought types .........
75
Figure 21.
U.S. Drought Monitor for Minnesota, November 20, 2012.....................................................77
Figure 22.
Projected Change in Number of Consecutive Dry Days in Low & High Emission Scenarios...
79
Figure 23.
Wildfires by Acres Burned (3.985-July 2o3.9) and Peat Soil Area in Sherburne County............
83
Figure 24.
Wildland Urban Interface in Sherburne County....................................................................84
Figure 25.
Dams by Hazard Classification..............................................................................................
go
Figure26.
Condition of Dams................................................................................................................
91
List of Tables
Table i.
Multi -Hazard Mitigation Steering Committee..........................................................................
ii
Table 2.
Sherburne County Hazard Mitigation Update Meetings and Public Outreach ..........................
3.4
Table 3.
Jurisdictional Participation in Planning Process.......................................................................
3.5
Table 4.
Dams in Sherburne County......................................................................................................
3.9
Table 5.
Sherburne County Population by Community, 2010................................................................
23
Table 6.
Social Vulnerability Index (SVI) Variables.................................................................................
26
Table 7.
Annual Average Employment by Major Industry Sector, Sherburne County ............................
27
Table 8.
Road Miles by Route System...................................................................................................
33.
Table 9.
Sherburne County Total Building Exposure.............................................................................
34
Table io.
FEMA MHIRA Natural Hazards in the 2019 Minnesota State Hazard Mitigation Plan .............
35
Table 13..
Natural hazards identified in the 203.3 Sherburne County Multi -Hazard Mitigation Plan ........
36
Table 3.2.
Prioritization of Hazards for Sherburne County.....................................................................
37
Table 3.3.
National Centers for Environmental Information Historical Hazards ......................................
39
Table 3.4. FEMA-Declared Major Disasters in Sherburne County (3-957-June 203.9)................................40
Table 3.5. FEMA-Declared Emergencies in Sherburne County (3-957-June 203.9)....................................40
Table 3.6. Historical Hazard Mitigation Funding (HMGP and PDM) in Sherburne CountY.......................40
Table 3.7. Historic Tornado Events in Sherburne County, 1950-July 2019............................................... 43
Table3.8. Effects of Wind Speed............................................................................................................45
Table 3.9. Storms producing hail greaterthan i-inch diameter in Sherburne County, 1950-July 203.9.... 53.
Table 20. Sherburne County Floods, 1996-July 203.9............................................................................. 55
Table 21. Historical Flood Crests for USGS Gauging Stations in Sherburne County ............................... 56
Table 22. Summary of i%Annual Chance Flood Loss Estimation by Occupancy Class .......................... 58
Table 23. i%Annual Chance Flood Building -Related Loss Estimates by Jurisdiction in Sherburne County
.............................................................................................................................................................. 60
Table 24. NFIP Participation in Sherburne County................................................................................64
Table 25. Notable Winter Weather Events in Sherburne County, 2014-July 2019.... Error! Bookmark not
defined.
Table 26. USDM Drought Classification ..............
Table 27. Droughts Impacting Sherburne County
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Sherburne County Multi -Hazard Mitigation Plan, 2020
Table 28. Average Percent of Sherburne County's Land Area by Drought Category .............................
78
Table 29.
Reported Drought Impacts for Sherburne County, 1976-2o3.8...............................................
79
Table 3o.
Hazard Potential Classification Criteria..................................................................................
87
Table 33..
NFIP Participation in Sherburne County.................................................................................
93
Table 32.
Repetitive Loss Properties in Sherburne County....................................................................
93
Table 33.
Goals from the 2019 Minnesota State Hazard Mitigation Plan ...............................................
97
Table 34.
Mitigation Strategies and Action Types.................................................................................98
Table 35.
Criteria for Mitigation Action Priority Ranking.....................................................................
3.00
Table 36.
Sherburne County Mitigation Action Chart (2020-2025)......................................................
102
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Sherburne County Multi -Hazard Mitigation Plan, 2020
Section 1- Introduction
1.3. Introduction
Hazard mitigation is defined as any sustained action to reduce ore I iminate long-term risk to human life
and property from hazards. The Federal Emergency Management Agency (FEMA) has made reducing
hazards one of its primary goals; hazard mitigation planning and the subsequent implementation of
resulting projects, measures, and policies is a primary mechanism in achieving FEMA's goal.
From 198o-2oi8, the cost of damages due to natural disasters in the U.S. has exceeded $i.6 trillion.
2017 was a record year with $306 billion in damage (NOAA, n.d.). While the costliest disasters may
occur in the coastal states, in 2oi8, wildfires, hailstorms, drought, and tornadoes caused many billion -
dollar disasters across the nation.
Hazard mitigation planning and preparedness will be the most effective instrument to diminish losses
by reducing the impact of disasters upon people and property. Although mitigation efforts will not
eliminate all disasters, each county shall endeavorto be as prepared as possible for a disaster.
The Multi -Hazard Mitigation Plan (MHMP) is a requirement of the Federal Disaster Mitigation Act of
2000 (DMA 2000). The development of a local government plan is required in order to maintain
eligibility for federal hazard mitigation grant funding programs. In order for communities to be eligible
for future mitigation funds, they must adopt an MHMP.
Researchers at the National Institute of Building Sciences looked at the results of 23 years of federally
funded mitigation grants provided by the Federal Emergency Management Agency (FEMA), U.S.
Economic Development Administration (EDA) and U.S. Department of Housing and Urban
Development (HUD) and found mitigation funding can save the nation $6 in future disaster costs, for
every $i spent on hazard mitigation (National Institute of Building Sciences, 2017).
Sherburne County is vulnerable to a variety of potential natural disasters, which threaten the loss of life
and property in the county. Hazards such as tornadoes, flooding, wildfires, blizzards, straight-line
winds, ice storms and droughts have the potential for inflicting vast economic loss and personal
hardship. In 2013, Minnesota had some of the highest weather -related disaster claims in the country
(MN Environmental Quality Board, 2014).
This Multi -Hazard Mitigation Plan represents the efforts of Sherburne County and its local governments
to fulfill the responsibility for hazard mitigation planning. The intent of the plan is to reduce the actual
threat of specific hazards by limiting the impact of damages and losses.
i.s.i Scope
The Sherburne County Emergency Management Director and U-SpatialQa UMD have combined efforts
to update the 203.3 Sherburne County Multi -Hazard Mitigation Plan. U-SpatialQa UMD contracted with
Hundrieser Consulting LLC for additional emergency management planning expertise and facilitation.
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Sherburne County Multi -Hazard Mitigation Plan, 2020
This Multi -Hazard Mitigation Plan evaluates and ranks the major natural hazards affecting Sherburne
County as determined by frequency of event, economic impact, deaths and injuries. Mitigation
recommendations are based on input from state and local agencies, public input and national best
practices.
U-SpatialQa UMD performed the hazard risk assessment for i% annual chance floods using the FEMA
Hazus GIS tool. The Minnesota Homeland Security and Emergency Management (HSEM) office has
determined that Hazus should play a critical role in Minnesota's risk assessments.
This is a multi -jurisdictional plan that covers Sherburne County, including the cities of Becker, Big Lake,
Clear Lake, Elk River and Zimmerman, as well as the townships of Baldwin, Becker, Big Lake, Blue Hill,
Clear Lake, Haven, Livonia, Orrock, Palmer and Santiago. The plan additionally covers the portions of
the cities of St. Cloud and Princeton that are located within Sherburne County. These cities have
adopted the Sherburne County plan as well as the primary county in which they reside (Stearns and
Mille Lacs). The Sherburne County risks and mitigation activities identified in this plan also incorporate
the concerns and needs of school districts and other agencies participating in this plan.
Members from each of these jurisdictions actively participated in the planning process by attending
workgroup meetings, providing information, suggesting mitigation strategies and reviewing the plan
document. Appendix K— Local Mitigation Survey Report includes jurisdictional ly-specific input. The
information in these forms was used to help identify mitigation actions for local implementation (see
also Section 2.2). Each jurisdiction will adopt the plan by resolution after approval by FEMA. County and
local city resolutions will be added by Sherburne County after final approval by FEMA, in Appendix D in
the back of the plan.
Sherburne County has specified the following goals for this Multi -Hazard Mitigation Plan update:
• Include more recent data documenting the critical infrastructure and hazards faced by
Sherburne County.
• Reformat and reorganize the plan to reflect definitions of hazards as expressed in the 2014
State of Minnesota Multi -Hazard Identification and Risk Assessment Plan.
• Reflect current hazard mitigation priorities in Sherburne County.
1.1.2 Hazard Mitigation Definition
Hazard mitigation may be defined as any action taken to eliminate or reduce the long-term risk to
human life and property from natural hazards. Following are examples of hazard mitigation measures
that fall within one of five types of mitigation strategies:
• Planning— Development of mitigation standards, regulations, policies, and programs.
• Structure and Infrastructure Projects — Structural retrofits, property acquisition, local flood
reduction projects, and safe room construction.
• Natural Systems Protection — Sediment and erosion control, stream corridor restoration, forest
and vegetative management, floodplain and stream restoration.
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Sherburne County Multi -Hazard Mitigation Plan, 2020
• Education and Awareness Programs —Outreach programs, hazard awareness campaigns, real
estate disclosure, and promotion of family/personal emergency preparedness.
• Mitigation Preparedness & Response Support— Emergency planning and services such as
warning siren systems, CodeRED, and installing generators for critical facilities.
1.1.3 Benefits of Mitigation Planning
The benefits of hazard mitigation planning include the following:
• Saving lives, protecting the health of the public, and reducing injuries
• Preventing or reducing property damage
• Reducing economic losses
• Minimizing social dislocation and stress
• Reducing agricultural losses
• Maintaining critical facilities in functioning order
• Protecting infrastructure from damage
• Protecting mental health
• Reducing legal liability of government and public officials
1.2 State Administration of Mitigation Grants
FEMA currently has three mitigation grant programs that are administered by the State of Minnesota:
the Hazard Mitigation Grant Program (HMGP), the Pre -Disaster Mitigation program (PDM), and the
Flood Mitigation Assistance (FMA) program. The HMGP, PDM and FMA programs are administered
through the state of Minnesota Department of Public Safety, Division of Homeland Security and
Emergency Management. All applicants must have or be covered under an approved Hazard Mitigation
Plan. Eligible applicants include state and local governments; certain private non-profit organizations or
institutions; and tribal communities.
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Sherburne County Multi -Hazard Mitigation Plan, 2020
Section z — Public Planning Process
2.1 Steering Committee Information
The Sherburne County multi -hazard mitigation plan steering committee is headed by the Sherburne
County Emergency Management Director, who is the primary point of contact. Members of the
Sherburne County MHMP steering committee include representatives from the public and
governmental sectors. Table 1 identifies the steering committee individuals and the organizations they
represent.
Table 1. Multi -Hazard Mitigation Steering Committee
Name
Agency/Organization
Participant
Kyle Breffle
Sherburne County
Emergency Management
Director
Emergency Management
Derek Baas
Sherburne County
Deputy Director
Jason Kern
Mn DNR Forestry
Resource Protection
Program Forester
Brent Baloun
City of Becker (Police
Chief of Police
Department)
Larry Alfords
Big Lake Township
Supervisor
City of St. Cloud
Erin Tufte
City of St. Cloud / Stearns
Emergency Manager /
County
Stearns County Emergency
Management Director
Supervisor
Bryan Adams
OrrockTownship
Seth Hansen
City of Big Lake / Wright
Assistant Fire Chief &
County Sheriff's Office
Councilman
Dan Andren
Sherburne County
Captain
Bob Kluntz
City of Elk River (Police
Captain
Department)
Paul Talbot
Mn DNR
NRF Fire Response Lead
Shelly Maloney
Sherburne County
Office Supervisor
Assessor's office
Jenny Norton
Sherburne County
Risk Management
Sherburne County
Specialist
Cody Engelhaupt
Lead Community Health
Coordinator
Jayme Swenson
Town of Big Lake
Deputy Clerk
Scott Case
Baldwin Fire
Fire Chief
Dave Lucas
Sherburne County
Solid Waste Admin
Nancy Riddle
Sherburne County
Planning and Zoning Admin
Doug Maschler
Sherburne County
Building Officer
Kathleen Heaney
Sherburne County
Co. Attorney
Brett Forbes
Sherburne County
GIS Coordinator
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Sherburne County Multi -Hazard Mitigation Plan, 2020
Mark Dickinson
City of Elk River (Fire
Fire Chief/Emergency
Department) Manager _
Andrew Witter
Sherburne County
Public Works Director
Dan Weber
Sherburne County
Assistant County
Administrator
Dave Unze
_
Sherburne County Media Specialist
Ryan Maloney
City of Zimmerman (Fire
Fire Chief
Department)
Ron Lawrence
City of Princeton
Fire Chief/Emergency
i
Management Director
Staci Hecht
Sherburne County
Risk Management
Specialist
Jurisdictional representatives participating on the steering committee were contacted throughout the
plan update process to help facilitate local participation and provide feedback on the hazards of
concern to their community. Information was used to develop local mitigation actions which they
would seek to implement upon plan adoption (see Section 5.3.2 and Appendix G Mitigation Actions by
Jurisdiction).
2.2 Review of Existing Plans, Capabilities & Vulnerabilities
Sherburne County and its local communities utilized a variety of planning documents to direct
community development. These documents include a Comprehensive/Master Plan, Emergency
Operations Plan, Continuity of Operations Plan, Stormwater Management Plan, Transportation Plan,
etc. (see Appendix J for a full listing of plans and programs in place in Sherburne County). The planning
process also incorporated the existing natural hazard mitigation elements from previous planning
efforts. In addition, the 2019 Minnesota All -Hazard Mitigation Plan was consulted.
In the development of the Sherburne County Multi -Hazard Mitigation Plan, U-SpatialQa UMD
consultants reviewed and incorporated a variety of planning documents that direct community
development and influence land use decisions for the county and itsjurisdictions. In addition, U-
SpatialQa UMD consultants worked closely with the Sherburne County Emergency Management
Director, other key county staff, and local city officials to collect specific feedback on local mitigation
capabilities and vulnerabilities that either support or hinder the ability to mitigate against natural
hazards at the county and local level. Following is a summary of the assessment tools used to gather
information on local capabilities and vulnerabilities during the planning process:
Capabilities Assessment (hazard specific) — In this assessment, detailed information was collected on
current Plans and Programs in Place and Program Gaps or Deficiencies that currently exist to mitigate
destruction caused by each natural hazard addressed in the plan. This information was used to inform
where there were current mechanisms in place to incorporate or implement mitigation measures (i.e.,
existing programs, plans or policies) and where there were areas that needed to be addressed. Section
4.3 Hazard Profiles identifies current gaps and deficiencies for mitigation and Section 5.1.3 Plans and
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Sherburne County Multi -Hazard Mitigation Plan, 2020
Programs in Place to Address Natural Hazards describes the mitigation capabilities that are in place to
support mitigation.
Local Mitigation Surveys —As part of Sherburne County's 2020 Multi -Hazard Mitigation Plan update,
participating jurisdictions and key county personnel were asked to fill out a two-part "Local Mitigation
Survey" (LMS) form. PartA: "Past Events & Vulnerability Assessment" collected detailed information
from each jurisdiction on the following: i) Severe weather or disaster events & impacts that have
occurred within the last five years; 2) Actions taken within the last five years that have helped
reduce local vulnerabilities to future disaster events; 3) Any changes within the last five years that
have increased local vulnerabilities to future disaster events; and 4) Any concerns or specific ideas for
mitigation projects to help reduce or eliminate risk resulting from future severe weather or disaster
events. Part 8: "Local Mitigation Capabilities Assessment" collected detailed information on each
jurisdiction's capabilities in place to help support mitigation in the community, including: 1) Plans,
authorities, or policies; 2) Staff (organizational capacity); 3) Programs; and 4) Funding or other
resources. Information was further collected on what program gaps or deficiencies exist that are a
barrierto accomplishing mitigation in the community.
Information from the LMS forms was used to inform Section 4, Risk Assessment and the development
of local -level mitigation actions (see AppendixG: Mitigation Actions by Jurisdiction).
2.3 Planning Process Timeline and Steps
In orderto update the 203.3 Sherburne County Multi -Hazard Mitigation Plan, U-SpatialQa UMD
consultants worked in coordination with the Sherburne County Emergency Management Director and
members of the steering committee. The updated plan includes not only new data documenting the
types of hazards faced by Sherburne County residents and emergency planning officials, but also new
thinking about how to best address these hazards.
2.3.1 Sherburne County Stakeholder Coordination
On January 3, 203.9, U-SpatialQa UMD hosted a kickoff meeting online that was attended by the
Sherburne County Emergency Management Director. The webinar included a project overview, U-
SpatialQa UMD background, the roles and responsibilities of the Emergency Management Director,
contents of the Multi -Hazard Mitigation Plan, planning process and projected timeline (see Appendix E
for webinar slides).
On January 3, 2019, Sherburne County issued a news release inviting public feedback and participation
forthe Sherburne County MHMP update (for complete documentation, see AppendixF. Public Outreach
& Engagement Documentation).
A steering committee meeting took place on May 31, 2o3.9, at the Sherburne County Sheriff's Office in
Elk River, which included the Sherburne County MHMP steering committee and members of the U-
SpatialQa UMD planning team. The steering committee was provided with an overview of the purpose,
process and timeline forthe Sherburne County Multi -Hazard Mitigation Plan update, as well as the role
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Sherburne County Multi -Hazard Mitigation Plan, 2020
and responsibilities of steering committee members. Appendix E provides documentation of steering
committee meeting summaries, including participant sign -in sheets and presentation slides.
Steering committee members were engaged in providing feedback on plans and programs in place as
they relate to hazards facing the county, and they discussed potential mitigation actions to be added to
the plan. This information was used to inform the development of mitigation strategies in the updated
plan.
On December 17, 2019, members of the steering committee convened again with the U-SpatialQa UMD
planning team to conduct a review of the risk assessment presented in the plan and discussion of the
draft mitigation action charts developed for Sherburne County and each of the city jurisdictions
participating in the plan. See Appendix E for a full meeting summary.
In orderto provide opportunity for public input, Sherburne County issued a second new release on
January 13, 2020, inviting public review and feedback on the draft plan. The news release provided
information on where the plan could be viewed and comments submitted. U-SpatialQa UMD hosted a
webpage to post the full draft Sherburne County MHMP, including excerpts of the Sherburne County
Master Mitigation Action Chart, each of the jurisdictional mitigation action charts, and an electronic
feedback form.
Appendix F provides documentation of the public outreach for feedback on the draft plan by Sherburne
County and jurisdictions. The public feedback period forthe draft plan was open from January 13, 2020,
to January 27, 2020, for a total of 15 days.
Table 2. Sherburne County Hazard Mitigation Update Meetings and Public Outreach
I.
Public Outreach
1/3/2019
News release inviting public feedback and
participation.
Kickoff Webinar
1/3/2019
Hosted online by U-SpatialQa UMD in Duluth
Steering
Sherburne County Sheriff's Office, Elk River,
Committee
5/31/2019
MN
Steering
Sherburne County Sheriff's Office, Elk River,
Committee
12/17/2019
MN
Public Outreach
1/13/2020 —
Public review period for draft plan
1/27/2020
At the close of the public outreach period, the U-SpatialQa UMD consultants worked with the Sherburne
County Emergency Management Director and members of the steering committee to incorporate
comments from the public into the Multi -Hazard Mitigation Plan.
For more information on the planning process, see sections 5 and 6.
2.3.2 Overview of Jurisdictional Participation
Throughout the planning process, Sherburne County requested the participation of city representatives
for the provision of local -level information, review and feedback to the plan update. Table 3 provides an
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Sherburne County Multi -Hazard Mitigation Plan, 2020
overview of the participation of each city that took part in the Sherburne County MHMP update
planning process, with reference to the location of supporting documentation.
Table 3. jurisdictional Participation in Planning Process
Jurisdiction
Local
Mitigation
5-31-19
Planning
Local Mitigation
Action Chart
12-17-19
Planning
Draft MHMP
Review
Survey,
(Appendix K)
Team Mtg. #i
(Appendix E)
Review (Section
5.3.2)
Team Mtg. #z
(Appendix E)
(Appendix F)
City of :. Lake
City of Clear Lake
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Sherburne County Multi -Hazard Mitigation Plan, 2020
Section 3 - Sherburne County Profile
This section offers a general overview of Sherburne County to provide a basic understanding of the
characteristics of the community, such as the physical environment, population, and the location and
distribution of services.
3.3. General County Description
Sherburne County is located in the east -central part of the southern half of Minnesota. It is triangular in
shape, with Benton and Mille Lacs Counties on the north, Isanti and Anoka Counties on the east, and
Wright and Stearns Counties on the south and west. The Mississippi River flows along its southwestern
border.
The county has a total land area of 288,64o acres or 453. square miles, all but 3.8 square miles are land.
Sherburne County land consists of agricultural, industrial, and recreation -based uses. The county's
population at the 2010 census was 88,499.
The seven cities in Sherburne County are Becker, Big Lake, Clear Lake, Elk River, Princeton, St. Cloud
and Zimmerman. The io townships are Baldwin Township, Becker Township, Big Lake Township, Blue
Hill Township, Clear Lake Township, Haven Township, Livonia Township, Orrock Township, Palmer
Township and Santiago Township.
Sherburne County's economy is dominated by the trade, transportation and utilities sector and the
education and health services sector. The percent of the county's population living below the poverty
level is 6.4%, compared to a 3.0.5%average forthe state of Minnesota.
3.2 Environmental Characteristics
The topography of Sherburne County is flat to gently rolling, and soils are sandy and well -drained.
The county lies within a subhumid continental climate, which has favored growth of both grassland and
forest vegetation. Soils within the county are generally frozen for between four and five months each
year. These soils formed beneath prairie grasses, forbs and forest. The largest grassland area that
existed in the county was along the outwash plain along the Mississippi River, but that area has now
been partially invaded by oaks (United States Department of Agriculture).
Within the county lies the Sherburne National Wildlife Refuge and the Sand Dunes State Forest. The
wildlife refuge contains wetlands, river habitats, grasslands, oak savanna and forest, and the refuge has
been designated as an Important Bird Area by the National Audubon Society. Every October thousands
of sandhill cranes can be seen on the marshes.
The Sand Dunes State Forest contains oak savanna and prairie, along with 2,70o acres of pine
plantation.
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Sherburne County Multi -Hazard Mitigation Plan, 2020
Since 1.998, the county has acquired land for four parks: Bridgeview Park Reserve, Grams Regional Park,
Island View Regional Park and Oak Savanna Park.
3.3 Geology
Sherburne County lies almost completely within a geologic landform known asthe Anoka Sand Plain,
which is a broad, sandy lake plain containing small dunes, kettle lakes and tunnel valleys. The other
important landform is a series of sandy terraces associated with historic levels of the Mississippi River
and its major tributaries.
Near St. Cloud there are deposits of granite and other rock products of significant value, including
crushed rock, aggregates, riprap and dimensional stone. The eastern portion of Sherburne County has
potential for industrial minerals such as lead and zinc, in addition to the gravel mined in this area.
3.4 Hydrography
Sherburne County is drained by two major watersheds. The Mississippi —St. Cloud watershed drains
89%of Sherburne County, while the Rum River watershed drains ii%. Within each major watershed
are a number of minor watersheds. Forty-six minor watersheds exist entirely or partially within
Sherburne County. The size of watersheds and dominant land -use therein greatly affects water quality
in streams, lakes and wetlands.
Impaired waters are an increasing problem as Sherburne County has many rivers, lakes and creeks that
are on the Minnesota Pollution Control Agency Impaired Waters lists, including the Mississippi River,
Elk River, St. Francis River, Rum River, Rice Creek, Tibbets Brook, Elk Lake, Briggs Lake, and Fremont
Lake, among others (Minnesota Pollution Control Agency, 2o3.8). Impaired waters have become a
priority issue because they do not meet state water quality standards, they affect growth and health of
communities and economies, and the Clean Water Act has a mandate requiring every state to address
impairments. Impairments found in Sherburne County waters include fecal coliform, turbidity, E. coli,
PCB in fish tissue, mercury in fish tissue and dissolved oxygen.
Basic hydrography in Sherburne County is mapped in Figure A-i in Appendix A
3.4.1 Groundwater
Groundwater in Sherburne County is heavily utilized for drinking water, as a cooling agent in
manufacturing plants, and for irrigating agricultural crops. According to the 2o3.8-2028 Sherburne
County Local Water Management Plan,
There are several aquifers lying beneath Sherburne County. The Mt. Simon aquifer, covering
eastern Sherburne County and expanding southeast through most of the Minneapolis — St. Paul
metro area, is the deepest bedrock aquifer of eastern central Minnesota. The aquifer, between So
and Zoo feet thick in this area, provides drinking water to over 1 million people. Several studies
(Berg and Pearson 2o13 and Tipping 2ozz) have shown that the most critical recharge areas for the
Mr. Simon -Hinckley aquifer include eastern Sherburne County, as well as northeastern Wright
County and southern Isanti County. While the aquifer has seen some depletion in the metro region
where water is being withdrawn for municipal and industrial use, it is currently believed the levels
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Sherburne County Multi -Hazard Mitigation Plan, 2020
have stabilized in other regions. Continued demand will result in an increase in withdrawals, so
conservation efforts must be enacted if water table levels are to remain stable.
Groundwater sensitivity to pollution is measured by flow rate and soil permeability. For near surface
materials, areas with a high sensitivity to pollution are areas where it takes hours to a week for a
contaminant to reach the aquifer; areas with very low sensitivity to pollution are areas where it takes
months to years for a contaminant to reach the aquifer. For the bedrock aquifers, areas with a high
sensitivity to pollution are areas where it takes hours to months for a contaminant to reach the aquifer;
areas with very low sensitivity to pollution are areas where it takes a century or more for a contaminant
to reach the aquifer. The buried sand and gravel aquifer is relatively shallow and has many areas of
moderate to high pollution sensitivity.
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Sherburne County Multi -Hazard Mitigation Plan, 2020
Figure A - 28 in Appendix A maps pollution sensitivity of near -surface materials from the transmission
time of water through three feet of soil and seven feet of surficial geology, to a depth of io feet from
the land surface.
3.4.2 Lakes
The largest lakes in the county are Lake Fremont (486 acres), located northeast of Zimmerman; Eagle
Lake (463 acres), located north of the city of Big Lake; and Briggs Lake (404 acres), located northeast of
the city of Clear Lake.
There are several waterbodies with wild rice in the county. Due to the cultural and biological
significance of wild rice, "these waters may soon be subject to sulfate standards, as research is
indicating higher sulfate concentrations can be detrimental to early -stage wild rice growth" (Sherburne
Soil & Water Conservation District, 2oi8).
3.4.3 Rivers
The Mississippi River flows along the southwestern border of Sherburne County. The county's
population is concentrated along the river boundary, with the highest population densities in the
southeast area, nearthe Twin Cities, and in the northwest area, adjacent to St. Cloud (Sherburne
County, 2019).
The Rum River flows through a small portion of the county in its northeastern corner. The river flows
south from Lake Mille Lacs to the Mississippi River at Anoka. It is designated as a wild and scenic river
by the Minnesota DNR. It is also a state water trail.
The Elk River flows through the county, draining a watershed of 63o square miles before flowing into
the Mississippi River at the city of Elk River. The river is 84 miles long in total.
The St. Francis River is 79 miles in length and a tributary of the Elk River, and flows through the
Sherburne National Wildlife Refuge and Sand Dunes State Forest.
3.4.4 Dam & Levee Inventory
Dams and levees are artificial barriers that have the ability to impound water, wastewater or any liquid
material for the purpose of storage or control and are an important part of Sherburne County's
infrastructure. Dams maintain lake levels and impound water for flood control, power production and
water supply. A complete listing of dams in the county is provided in Table 4.
Levees are used to increase cultivation in agriculture and to protect population and structures from
floods. While there are no levees within the boundary of Sherburne County, there is a levee located just
south of the town of Elk River on the Mississippi River. A total of .ii square miles are in the leveed area.
Page Isg
Sherburne County Multi -Hazard Mitigation Plan, 2020
Elk Lake
MNDNR-Trails
Battle Brook
Other
8.5
Fish and
Wildlife Pond
Elk River
City of Elk River
Elk River
Gravity
23
Recreation
Fox Pond
USF&W
St. Francis River-TR
Earth
9
Other
Lake Mitchell
City of Big Lake
Elk River-TR
Unknown
Unknown
Unknown
NSP-Bottom
Ash
Xcel Energy
Mississippi River—
Offstrearn
Earth
35
Other
Unknown
Unknown
Rush Lake
MNDNR-Fisheries Lily Creek Unknown
Unknown
Sherburne Nat'l
USDA FS St. Francis River Unknown
Unknown
Sherburne Nat'l
Dike 6A
Sherburne Nat'l
Pool14A
USDA FS. Francis River=TR
USDA FS St. Francis River TR
Earth
Earth
i2
Other
15
Other
ii
Other
Sherburne Nat'l
Pool 1.7
USDA FS
St. Francis River-TR
Earth
1.3
Other
Sherburne Nat'l
Pool i8B
USDA FS St. Francis River-TR Earth
Sherburne Nat'l
_Pool ig
USF&W
St. Francis River-TR
Earth
15
Other
io
Other
Sherburne Nat'l
_Pool Zo
USDA FS St. Francis River-TR Earth
Sherburne Nat'l
Pool 28
USDA FS
St. Francis River-TR
Earth
7
Other
Sherburne Nat'l
Pool 7A
USDA FS
St. Francis River-TR
Earth
1.2
_
Other
7
Other
Sherburne Nat'l
Pool 7B
USDA FS St. Francis River-TR Earth
Sherco
Xcel Energy
Mississippi River -OS
Earth
39
Other
3.4.5 wetlands
Important benefits of wetlands include storage area for excess water during flooding; filtering of
sediments and nutrients before they enter lakes, rivers and streams; and fish and wildlife habitat.
According to the Sherburne County Local Water Management Plan, there are 53,00o acres of wetlands
in the county, constituting 50-80% of the original pre -settlement wetland acreage. The largest
contiguous area of wetlands within the county is located in the Sherburne National Wildlife Refuge.
Invasive plants have spread throughout many wetlands in Minnesota. These plants can take over entire
native communities and threaten wetland ecosystems. Eurasian watermilfoil has been documented in
Sherburne County in the following water bodies: Little Elk Lake, Eagle Lake, Big Lake, Lake Mitchell,
Rush Lake, and Frederickson Slough (MN DNR, 2019).
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Sherburne County Multi -Hazard Mitigation Plan, 2020
3.5 Climate
The Sherburne County climate is considered severe, especially in the winter months, and county
residents experience four distinct seasons.
January is the coldest month on average in Sherburne County, with an average monthly minimum
temperature of o°F (based on data from 3.895-203.8). The coldest month on record for the county was
January 3.93.2, with a month -long average minimum temperature of -i6°F (MN DNR, n.d.). The average
annual snowfall in Elk River is 40 inches (U.S. Climate Data, n.d.).
July is the hottest month on average in Sherburne County, with an average monthly maximum
temperature of 82°F (based on data from 1895-2oi8). The hottest month on record for the county was
July 3.936, with a month -long average maximum temperature of 93°F (MN DNR, n.d.).
The average annual rainfall is 32 inches (U.S. Climate Data, n.d.).
Climate Change
Minnesota's climate is currently changing in ways that are pushing us to adapt to weather patterns and
extreme eventsthat pose majorthreats to our health, homes, environment and livelihoods. These
events cost our state millions in property loss, damaged infrastructure, disrupted business, medical care
and support services, and put residents and responders at risk. Understanding how our weather is
changing now and into the future will help planners and decision -makers in emergency management
and supporting fields extend our progress in climate adaptation and lead to more resilient communities
(MDH, 2o3.8).
The National Climate Assessment suggests that infrastructure planning (particularly water resources
infrastructure) should "be improved by incorporating climate change as a factor in new design
standards and asset management and rehabilitation of critical and aging facilities, emphasizing
flexibility, redundancy, and resiliency" (Georgakakos, et al., 2014).
Federal, state, and tribal governments are increasingly integrating climate change adaptation into
existing decision -making, planning, or infrastructure -improvement processes (Georgakakos, et al.,
203-4). Definite predictions are difficult to make, as changes may vary depending on geographical
location, even within Minnesota. Intense study of these topics is ongoing.
In August 2oi8, the Minnesota Department of Health Climate & Health Program published "Planning
for Climate & Health Impacts in Metro Minnesota: Emergency Management Considerations for HSEM
Region 6." This report is one of a series of custom climate profile reports produced for each of the six
HSEM regions in the state for reference to climate change projection data, impacts, and considerations
for emergency management and preparedness professionals in this HSEM region.
Climate Data Trends
Over 50 years of storm data on record document that Minnesota has experienced an increase in the
number and strength of weather -related natural disasters, particularly those related to rising
temperatures and heavy downpours.
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Sherburne County Multi -Hazard Mitigation Plan, 2020
According to the 203.5 Minnesota Weather Almanac,
During the three most recent decades, the Minnesota climate has shown some very significant
trends, all of which have had many observable impacts... Among the detectable measured quantity
changes are: (1) warmer temperatures, especially daily minimum temperatures, more weighted to
winter than any other season; (2) increased frequency of high dew points, especially notable in
mid- to late summer as they push the Heat Index values beyond zoo°F; and (3) greater annual
precipitation, with a profound increase in the contribution from intense thunderstorms (Seeley M. ,
2oi5).
Temperature and precipitation projections below are taken from the Minnesota Department of Health
Region 6 profile. Appendix L provides the full MDH profile for Region 6, which includes Sherburne
County. The information in this report was used to help inform the updated risk assessments in Section
4 — Risk Assessment of this plan for natural hazards and their relationship to climate change.
Temperature
There has been an increase in winter and summer temperatures. Our average winter lows are rising
rapidly, and our coldest days of winter are now warmer than we have ever recorded. In fact,
Minnesota winters are warming nearly 13 times faster than our summers. The continued rise in
winter temperatures will result in less snow pack, which will increase chances for
grassland/wildfires as well as drought. The warmer winter temperatures will also have major
consequences for our ecosystems, including native and invasive species, whose growth, migration,
and reproduction are tied to climate cues. The increase in Lyme disease across Minnesota is also
likely influenced in part by the loss of our historical winters, due to a longer life -cycle period for
ticks. Freeze -thaw cycles are likely to increase as well, damaging roads, power lines and
infrastructure, and causing hazardous travel conditions. By mid-century our average summer highs
will also see a substantial rise, coupled with an increase in more severe, prolonged heat waves that
can contribute to drought and wildfires and pose a serious health threat, particularly to children
and seniors (MDH, 2o3.8).
Precipitation
There has been an increase in total average as well as heavy precipitation events, with longer
periods of intervening dry spells. Our historical rainfall patterns have changed substantially, giving
rise to larger, more frequent heavy downpours. Minnesota's high -density rain gauge network has
captured a nearly four fold increase in "mega -rain" eventsjust since the year 2000, compared to
the previous three decades. Extreme rainfall events increase the probability of disaster -level
flooding and new research suggests a recent increase in precipitation -triggered landslide activity in
the metro region. However, there is also an increased probability that by mid-century heavy
downpours will be separated in time by longer dry spells, particularly during the late growing
season. Over the past century, the Midwest hasn't experienced a significant change in drought
duration. However, the average number of days without precipitation is projected to increase in the
future, leading Minnesota climate experts to state with moderate -to-high confidence that drought
severity, coverage, and duration are likely to increase in the state. Modeling future precipitation
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Sherburne County Multi -Hazard Mitigation Plan, 2020
amounts and patterns is less straight forward compared to temperature. Some climate models do
a better job than others representing rainfall for the Midwest, and available data sources only
provide average estimates on a monthly scale, masking the spikes in extremes that trigger flood
and drought disasters (MDH, 2018).
1.6 Demographics
Elk River is the largest city in Sherburne County (pop. 22,974) and the designated county seat. There
are five cities and 10 townships within the county (plus the cities of Princeton and St. Cloud are
partially -located within the county).
Table 5 summarizes the population by community according to the 2010 U.S. Census. Figure 1 shows
Sherburne County population density by census block.
Table 5. Sherburne County Population by Community, 2010
Community
Becker 4,538
5-13
Big Lake
so,o6o
11.37
Clear Lake
545
o.62
Elk River
22,974
25.96
Princeton*
50*
o.o6*
St. Cloud*
6,785*
7.67*
Zimmerman
5,228
5.91-
Baldwin Township
6,739
7.61.
Becker Township
4,842
5-47
Big Lake Township
7,386
8.35
Blue Hill Township
2,176
2.46
Clear Lake Township
1,539
1-74
Haven Township
1,986
2.24
Livonia Township
51951-
6.72
Orrock Township
3,451
3.90
Palmer Township
2,354
2.66
Santiago Township
1,895
2.14
Total
88,499
Source: U.S. Census Bureau, 2010
*Values within the boundary of Sherburne County
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Sherburne County Multi -Hazard Mitigation Plan, 2020
Figure 1. Sherburne County Population by Census Block, 2010
Data Source: tk5. Cara
Population growth trends have an important influence on the needs and demands of a variety of
services such as transportation, law enforcement and emergency response. An understanding of
population trends and location of population concentrations is important for making projections
regarding potential impacts in the event of a disaster.
In 2010, Sherburne County had a population of 88,499, averaging 204 persons per square mile of land
area. Elk River, the largest city in the county and the county seat, had a population of 22,974.
Sherburne County's population has been rapidly increasing since 197o, rising 37%from 2000 to 2010.
Since 3.920, the population has increased by 83.7%. Figure 2 below shows the population change in
Sherburne County between 192o and 203.0. Population change by township from 2000to 2010 is
mapped in Figure A - 3 in Appendix A.
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Sherburne County Multi -Hazard Mitigation Plan, 2020
Figure 2. Sherburne County Population Change, 1920-2010
85,000
75,000
65,000
55,000
45,000
35,000
25,000
15, 000
5,000
1920 1930
Source: U.S. Census Bureau
1940 1950
i96o 1970 i98o 1990
2000 2010
Sherburne County's population is projected to continue increasing, reaching a high of 3.03,205 in 2050
(Figure 3).
Figure 3. Sherburne County Population Projections, 2020-2050
104, 000
103,000
102,000
101,000
100,000
99,000
N
98,000
97,000
96,000
95,000
94,000
2020 2025 2030 2035 2040 2045 2050
Source: Minnesota State Demographic Center, Minnesota Planning, March 2017 release
3.6.1 Population Vulnerability
The degree to which a person is vulnerable to the impacts of a hazard depends on how well he/she is
able to react before, during, and after a hazardous event. The Centers for Disease Control and
Prevention (CDC) Agency for Toxic Substances & Disease Registry (ATSDR) defines social vulnerability
Page 125
Sherburne County Multi -Hazard Mitigation Plan, 2020
as "...the resilience of communities when confronted by external stresses on human health, stresses
such as natural or human -caused disasters, or disease outbreaks" (2oi8). These stressors now
increasingly include the more extreme weather events and longer -term impacts of Minnesota's
changing climate.
Reducing social vulnerability can decrease both human suffering and economic loss. The ATSDR Social
Vulnerability Index (SVI) uses U.S. Census variables at the tract -level to help local officials identify
communities that may need support in preparing for hazards or recovering from disaster. Certain social
conditions, such as high poverty, low percentage of vehicle access, or crowded households can increase
a community's social vulnerability (ATSDR, 2o3.8).
The ATSDR SVI ranks census tracts on 3.5 social factors which are grouped into four themes (Table 6).
Table 6. Social Vulnerabilitil Index (SVI) Variables
Proportion individuals below poverty level
Socioeconomic
Proportion civilians unemployed i6+yrs
Status
Per capita income in 1999
_
Proportion persons with no high school diploma 25+yrs
Household
Proportion persons 65 years or older
Composition &
Proportion persons 1.7 years or younger
Disability
Proportion persons with disability 5+yrs
Proportion single -parent HH with children under 1.8 yrs
Minority Status
Proportion minority
& Language
Proportion persons 5+yrs who speak English less than 'well'
Proportion housing with io+units
Proportion mobile home
Housing &
Proportion HH with more people than rooms
Transportation
Proportion HH with no vehicle access
Proportion of persons who are in institutional & non -
institutional group quarters
Source: (CDC, 2019)
Census tracts within Minnesota were ranked and given a percentile value from oto i, with highervalues
indicating greater vulnerability. Theme -specific percentile rankings were generated by summing the
percentiles of the variables comprising each theme and ordering the summed percentiles for each
theme. For more information about the SVI methodology, visit https://svi.cdc.gov/. A map of each SVI
theme for Sherburne County is displayed in Figure 4.
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Sherburne County Multi -Hazard Mitigation Plan, 2020
(crwur a-Waw owwn Gleam Vap"erdail i.
3.7 Economy
Sherburne County's economy is dominated by the trade, transportation and utilities sector and the
education and health services sector.
The number of jobs in the county increased by over 12% between 2oo8 and 2oi8.
Table 7 provides an overview of the annual average employment by major industry sector in Sherburne
County.
Table 7. Annual Average Employment by Major Industry Sector, Sherburne County
Natural Resources and
Mining
363
438
2,184
Construction
1,442
3,865
Manufacturing
3,211
6,068
Trade, Transportation
and Utilities
5,863
8o
Information
N/A
550
Financial Activities 633
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Sherburne County Multi -Hazard Mitigation Plan, 2020
Professional and 1,148 1,584
Business Services
Education and Health
5,974 6,025
Services
Leisure and Hospitality 1 2,019 1 2,555
Public Administration 1,584 1,740
Other Services 754 1,050
Total Number of Jobs: 23,178 26,142
Source: Minnesota Dept. of Employment and Economic Development. Note: data discrepancies
between segment values and totals exist due to data suppression for confidentiality.
According to the 2013-2017 American Community Survey five-year estimates, the median household
income in Sherburne County was s83,895, compared to a Minnesota average of s65,699. The median
household income in Sherburne County increased by 17% since the 2006-2010 estimates. The percent
of the county's population living below the poverty level was 6.4%, compared to a 10.5% average for
the state of Minnesota.
3.8 Critical Infrastructure
Critical infrastructures are among the most important assets of a community. While the purpose of
these infrastructures differ in nature, their continued operations are integral to the health, safety,
economic and cultural well-being of the residents of Sherburne County.
Critical infrastructures have been identified based on FEMA guidelines (FEMA, 2013) as well as input
from Sherburne County. Critical infrastructures have been classified into the following groups:
emergency and shelter facilities; infrastructure systems; high potential loss structures; and significant
county assets. Forthe complete list of critical infrastructures in Sherburne County, see Appendix B.
3.8.s Emergency & Shelter Facilities
Emergency and shelter facilities are vital to the health and welfare of entire populations, providing
services and functions essential to communities, especially during and after a disaster (FEMA).
Emergency and shelter facilities include healthcare facilities, emergency services, evacuation
centers/shelters, and schools (which are often used as evacuation centers/shelters).
Figure A - 4, Figure A - 5 and Figure A - 6 display the locations of the emergency and shelter facilities
within Sherburne County.
Healthcare Facilities
Sherburne County is serviced by one hospital, Fairview Northland Regional Hospital, as well as a
number of nursing homes, hospices, and dialysis centers located all across the county. Located in
Princeton, MN, Fairview Northland has 64 hospital beds and provides a comprehensive array of
healthcare services for communities northwest of the Twin Cities including heart care, cancer care,
childbirth, orthopedics, pediatrics and many more. Fairview also operates clinics in Elk River and
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Sherburne County Multi -Hazard Mitigation Plan, 2020
Zimmerman. There are 742 nursing home beds in the county across three facilities, one in Elk River and
two in St. Cloud.
Emergency Services
Law Enforcement
The County Sheriff's Office provides law enforcement throughout the county and is located in Elk River
Over Soo employees work there to ensure than Sherburne County is a safe and secure place to live.
Additionally, there are police departments in Elk River, Big Lake, and Becker. These city -level police
departments work closely with both ambulance and fire services to effectively manage the safety and
well-being of county citizens.
Sherburne County is also patrolled by 49 troopers of the Minnesota State Patrol, primarily for traffic
enforcement and highway safety on the state Trunk Highway system, as well as providing statewide
law enforcement. Sherburne County is served by the 2600 District, headquartered in St. Cloud (MN
Dept. Public Saftey, 2019).
The one Emergency Operation Center in Sherburne County is located in the Sherburne County Sheriff's
Office in the city of Elk River. Duties of the EOC include (but are not limited to) hazard response
coordination, volunteer help, communication with government agencies on all levels, and the
production of information suitable for public viewing and education.
Fire & Rescue Services
Structure fires are served by local fire districts and fire departments. Each district is responsible for fires
within their district boundaries. However, they can work together on larger fires. Fire departments are
located in Princeton, Elk River, Clear Lake, Becker, Zimmerman, Saint Cloud and Big Lake.
Error! Reference source not found. shows fire departments and fire response times in Sherburne
County. These drive times are created using data from Esri's Business Analyst and running the ArcGIS
Network Analyst extension. The user may note discrepancies between MnDOT road data and this map;
Network Analyst requires a seamlessly connected data source in order to perform the calculations for
drive times, which Business Analyst provides but MnDOT does not. The Business Analyst data was used
forthis reason. According to this model, nearly all communities in the county are within 3.5 minutes of a
fire department.
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Sherburne County Multi -Hazard Mitigation Plan, 2020
Schools & Evacuation Centers/Shelters
There are 37 academic institutions in Sherburne County spread across four school districts. The
institutions include 14 elementary schools, six middle schools, four high schools and numerous other
alternate learning programs, charter schools, and special education programs. In total, these academic
institutions enroll an estimated 3.6,000 students.
FEMA and the American Red Cross have designated 17 facilities within Sherburne County as shelters to
be used in the event of an issued evacuation.
3.8.2 Infrastructure Systems
Infrastructure systems include the transportation systems and utility systems which are fundamental to
the functioning of communities. These systems allow for emergency facilities to operate and connect
to residents; they are the lifelines for communities.
Transportation Systems
The infrastructure of transportation systems facilitates the movement of individuals, goods, and
services. Figure A - g displays Sherburne County's transportation systems.
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Sherburne County Multi -Hazard Mitigation Plan, 2020
Roadways
U.S. Highway 169 runs north -south through the county, passing through Elk River and Zimmerman.
U.S. Highway 10 also runs through the county, to the east of the Mississippi River, passing through Elk
River, Big Lake, Becker and Clear Lake. MN Highway 25 runs north -south through the county between
Becker and Clear Lake.
The Minnesota Department of Transportation uses a functional classification to group the streets and
highways into classes or systems according to the character of service they are intended to provide.
Table 8 lists the total miles of road for each route system within Sherburne County.
Table 8. Road Miles b1 Route System
Route
County Road
1.63
County State Aid Highway (CSAH)
244
MN Highway
19
Municipal
265
Municipal State Aid Road
52
National Wildlife Refuge Road
io
Private Road -Public Access
4
Ramp or Connector
8
State Forest Road
8
State Park Road
o
Township Road
5o8
Tribal Road
o
Unorganized Territory Road
o
US Highway
117
Total
1,398
Source: (MnDOT, 2012)
Sherburne County Public Works is responsible for the county highway system, which includes 244 miles
of County State Aid Highways and 163 miles of county roads as well as 38 bridges.
Sherburne County and cities complete the snow removal from all county and city roads. MNDOTwill
remove the snow from state highways as well as disperse salt/sand as need. Township road
maintenance and snow removal is handled by each township.
Railways
The main line of the Burlington Northern Santa Fe (BNSF) Railroad from Chicago to Seattle passes
through Sherburne County. Amtrak runs on this line as well, though no stops are made within the
county (Sherburne County, 2019).
Navigable Waterways
This plan only references navigable waterways which are included in the U.S. Department of
Transportation/Bureau of Transportation Statistics' National Transportation Atlas Database. A general
definition of navigable waterways is defined by the US Army Corps of Engineers as, "...waters that are
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Sherburne County Multi -Hazard Mitigation Plan, 2020
subject to the ebb and flow of the tide and/or are presently used, or have been used in the past, or may
be susceptible for use to transport interstate or foreign commerce..." (Code of Federal Regulations,
n.d.). According to this definition, there is one navigable waterway in Sherburne County, the Mississippi
River.
Airports
There are three public airports in the county, in St. Cloud, Princeton and Clear Lake. The St. Cloud
Regional Airport has commercial service available (Sherburne County, 2019).
Utility Systems
The infrastructure of utility system networks facilitates the process of moving utilities from their source
to the consumer. A map of the utilities systems in Sherburne County is displayed in Figure A - 8.
Water & Sewer
According to data from the Minnesota Pollution Control Agency, there are 37 wastewater treatment
plants in the county. These are operated both by the city governments as well as a number of private
energy companies in the county.
Energy
There are 3.6 electrical substations in Sherburne County and various electric transmission lines. The
infrastructure are owned and operated by Great River Energy and Excel Energy, Inc.
Residents of Sherburne County receive their electric utility from one of the five providers depending on
where they live in the county: Xcel Energy, Princeton Public Utilities, Elk River Municipal Utilities, East
Central Energy, or Connexus Energy.
Communication
Established in 2004, the Allied Radio Matrix for Emergency Response (ARMER) Program, administered
in coordination with the Minnesota Statewide Radio Board, manages the implementation of a 7oo/800
megahertz (MHz) shared digital trunked radio communication system capable of servicing the radio
communication needs of every public safety entity operating in Minnesota (MN Department of Public
Safety, n.d.).There are three ARMER towers in Sherburne County (see Figure A - 8).
3.8.3 High Potential Loss Structures
High potential loss structures are structures which would have a high loss or negative impact on the
community if they were damaged or destroyed (FEMA). These structures include dams, levees and
facilities storing hazardous materials. A map displaying the locations of these structures is in Figure A -
1.0.
Dams & Levees
There are 1.8 dams and no levees in Sherburne County (see section 3.4.4 for a complete inventory).
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Sherburne County Multi -Hazard Mitigation Plan, 2020
Hazardous Materials Facilities
Hazardous materials facilities contain extremely hazardous materials that would threaten the public if
released. The inventory of these facilities in Sherburne County includes those required to register with
the EPA due to the type and quantity of hazardous materials being stored or produced at the facility.
Sherburne County has identified 52 such facilities.
3.8.4 Significant County Assets
Significant county assets include larger employers which represent a primary economic sector of a
community; buildings of government services deemed to be significant; and cultural or historic assets
that are deemed important to a community. An inventory of Sherburne County's significant county
assets is provided in Appendix B.
Leading Employers
While every employer is an important asset to a community, the loss or disruption of certain employers,
or the primary economic sector of a community, will have a large negative impact on the respective
communities. 41 employers fitting this profile were identified in Sherburne County (Sherburne County,
n.d.).
Government Buildings
Government buildings deemed to be significant is at the discretion of the communities, but often
include: government service centers, the court house, jails, and prisons. Previously mentioned
government emergency services (police and fire) are not included in this list. Sherburne County
identified 3o government buildings, such as town/township halls, public works buildings, maintenance
facilities, etc.
Cultural Resources
The National Register of Historic Places identifies buildings, structures and districts that have cultural
significance to an area. There are six such locations in Sherburne County. The Oliver H. Kelley
Homestead, Herbert M. Fox House, and Tobias G. Mealey House formerly belonged to important
community figures and are now open to the public. In addition, the Minnesota State Reformatory for
Men, Elkhi Stadium and the Elk River Water Tower are on the register as well.
3.9 Land Use and Ownership
Agriculture is the dominant land use in Sherburne County. In 2017, there were 501 farms in the county,
covering 102,544 acres. Of this farming land, 77% is cropland, ii% is woodland, 5% is pastureland, and
the rest is classified as `other." The number of farms in the county increased by io% between 203.2 and
203.7, while the number of acres farmed decreased by g%. The average size of each farm is 205 acres
(Census of Agriculture, 2017).
According to data from the Minnesota Pollution Control Agency, the number of feedlots in Sherburne
County is 33. They are mapped in Figure A - 27 (Appendix A: Sherburne County Maps).
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Sherburne County Multi -Hazard Mitigation Plan, 2020
Land ownership categories from the 2008 U.S. Geological Survey GAP (Gap Analysis Program) are
shown in Figure A - 12 (Appendix A: Sherburne County Maps). Land cover is mapped in Figure A - 11.
3.9.1 Facility Replacement Costs
Sherburne County -specific building data was sourced from the parcel tax databases and parcel polygon
data included building valuations and occupancy class. Structure values for each parcel were
aggregated within each parcel and assigned to the parcel centroid point. Records were aggregated to
the relevant census administrative boundaries forthe flood hazard analysis. This process also provided
total facility replacement costs and total building exposure by general occupancy class (defined by
Hazus tools). The total estimated building exposure for Sherburne County is shown in Table g.
Table 9. Sherburne County Total
Residential
53,647
$8,774,236,410
Commercial
1,334
$702,958,818
Other
6,224
$4,005,451,322
Total
61,205
$13,482,646,550
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Sherburne County Multi -Hazard Mitigation Plan, 2020
Section 4— Risk Assessment
The goal of mitigation is to reduce or eliminate the future impacts of a hazard including loss of life,
property damage, disruption to local and regional economies, and the expenditure of public and private
funds for recovery. Sound mitigation practices must be based on sound risk assessment. A risk
assessment involves quantifying the potential loss resulting from a disaster by assessing the
vulnerability of buildings, infrastructure and people.
Basing risk assessments on the best information available is important in developing effective
mitigation actions that benefit communities. Geographic Information System (GIS) tools are not only
helpful in producing maps, but they also show structures at risk and may determine damage estimates
for potential hazard scenarios. MN Homeland Security and Emergency Management (HSEM)
mitigation staff encourages the use of GIS tools in risk assessments because they produce good
information to use in the risk assessment process.
This assessment identifies the characteristics and potential consequences of a disaster, how much of
the community could be affected by a disaster, and the impact on community assets. A risk assessment
consists of three components — hazard identification and prioritization, risk profile, and vulnerability
profile.
4.3. Hazard Identification/Profile
4.1.1 Hazard Identification
The cornerstone of the risk assessment is identification of the hazards that affect jurisdictions. To
facilitate the planning process, several sources were employed to ensure that the natural hazards are
identified prior to assessment.
Natural hazards are identified in the FEMA publication "Multi -Hazard Identification and Risk
Assessment —A Cornerstone of the National Mitigation Strategy," also known as MHIRA. FEMA Region
V developed a list based on state mitigation plans in the region. Table io liststhe natural hazards
included in the 203.9 Minnesota State Hazard Mitigation Plan.
Table 10. FEMA MHIRA Natural Hazards in the 2019 Minnesota State Hazard Mitigation Plan
Flooding
Hail
Drought
Dam/Levee Failure
Lightning
Extreme Heat
Wildfire*
Winter Storms
Extreme Cold
Windstorms
Erosion/Landslides/
Earthquakes
Mudslides
Tornadoes
Land Subsidence
Coastal Erosion
(Sinkholes & Karst)
& Flooding
*Addressed in the State Mitigation Plan because Minnesota is a heavily forested state compared to other states in Region V.
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Sherburne County Multi -Hazard Mitigation Plan, 2020
4.1.2 Hazard Prioritization and Vulnerability Assessment by Jurisdiction
Prioritization of Hazards
As part of the plan update process, the steering committee reviewed, updated, and prioritized the
hazards faced by residents of Sherburne County, updated the existing mitigation actions published in
the 203.3 Multi -Hazard Mitigation Plan, and proposed new mitigation actions.
To engage in this process, the committee drew on a number of data sources. First, the committee
examined the hazards identified in the 203.3 Multi Hazard Mitigation Plan (Table ii). The natural
hazards that pose risk to Sherburne County were discussed and adjusted to reflect the definitions of
natural hazards used in the 2019 Minnesota State Hazard Mitigation Plan. This was done in orderto
assure that the risks faced by Sherburne County were categorized the same way as the priority hazards
established by the State of Minnesota.
Table 11. Natural hazards identified in the 2013 Sherburne Counhj Multi -Hazard Mitigation Plan
Severe Winter Storms Severe Thunderstorms Tornadoes Lightning
Extreme Temperatures Hailstorms Flooding Drought
Wildland Fire Dam Failure
While the focus of this MHMP is on natural hazards, planning took place with the understanding that
many non -natural hazards could occur as a result of natural disasters (i.e. disruption in electrical service
due to downed power lines from heavy snow, ice storms or high wind events).
This plan draws on a variety of data sources including the State of Minnesota and Homeland Security
Emergency Management Critical Infrastructure Strategy for the State of Minnesota (2oio), FEMA's
Local Mitigation Planning How-to Guide Integrating Manmade Hazards into Mitigation Planning (2003),
and the State of Minnesota Multi Hazards Identification Risk Assessment.
The prioritization of hazards forthe Sherburne County MHMP Update (Table 12) was based upon group
review and discussion of the natural hazards that pose risk to the county during the MHMP kick-off
steering committee meeting on May 31, 2019. In the review of each hazard, the group was asked to
consider if the risk to severe natural hazards had increased or decreased since the last plan, and if this
affected their priority level to mitigate against that hazard. The group agreed that since the 203.3 plan
the prioritization of flooding and erosion/land subsidence should be moved from moderate to high due
to an increase in high rain and flooding events. The prioritization for wildland fire was moved from low
to moderate due to an increase in development in higher risk areas. Severe winter storms and severe
summer storms continued to be high priority hazards to address as previously in 2013. Drought
remained moderate and dam failure remained low. Appendix E: Steering Committee Meetings provides
the steering committee discussion notes from the May 31, 203.9 meeting.
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Sherburne County Multi -Hazard Mitigation Plan, 2020
Table 12. Prioritization of Hazards or Sherburne County
Severe Winter Storms
(Blizzards, Heavy Snow, High
Ice Storms)
Severe Summer Storms i
(Thunderstorms, High
Lightning, Hailstorms,
Windstorms, Tornadoes)
Flash Flooding & Riverine High
Flood
Erosion/Landslides
Moderate
Extreme Heat/Extreme
Moderate
Cold
Drought
Moderate
Wildland fire
Moderate
Dam Failure
Low
Vulnerability Assessment by Jurisdiction
Jurisdictions in Sherburne County have varying vulnerabilities to and concerns about impacts to their
communities. Interviews with jurisdictionaI representatives in addition tot he Local Mitigation Survey
resulted in some specific concerns. Participants were asked to provide feedback on how they felt
vulnerability to natural hazards had either increased (due to changes such as development) or
decreased (due to local mitigation efforts) overthe past five years. Following is an overview of
responses related to noted local vulnerabilities (see Appendix K for the full Local Mitigation Survey
Report). This information was used to help tie local vulnerability back to the exposure of people,
buildings, infrastructure and the environment to the natural hazards listed in Table 3.2, and to assist
local governments in development of related local mitigation actions. Cities not listed did not note any
change in risk or local vulnerabilityto hazard events.
Sherburne County
Sherburne County has experienced high volumes of development in the iggo's and again
picking up in the last five years. With increased populations there is a higher risk of damage, but
we feel that with strict stormwater requirements the risk is reduced. Development that has
occurred in Sherburne County's unincorporated areas in the last 25 years has had to meet a
three-foot minimum separation from the highest known water table in an effort to prevent
structure flooding in high volume rain events. This has also kept structure back from wetland
areas that could also create onsite flooding. In shoreland areas, the county has a 25%
impervious surface rule per the State Rules, but there has been an increase of variances applied
for and granted in the last 5 years. Staff urges the maintenance of this rule.
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Sherburne County Multi -Hazard Mitigation Plan, 2020
City of Big Lake
Since the last update of the plan there has been approximately Zoo new homes built in the city
of Big Lake and around 3.00-3.5o new homes in the township which could have an adverse effect
to costs in the event of a tornado, wind or hail event. Heavy construction and growth continues
to stretch city resources thinner, which could impact our preparation and post -event needs
significantly.
City of Elk River
In the last five years we have seen population growth with a new Boo -home development on
the east side of the city, as well as the establishment of an outdoor motor cross track on the
north side of town. At times there are 5,000 plus people at this outdoor venue with two
campgrounds and no storm shelter. Elk River is an active senior community with a large portion
of the population over 5o. This is only one of the vulnerable populations at risk, the city has also
seen the increase in apartment, townhome and senior living.
City of Princeton
Every year it seems that the potential for flooding increases. We also are experiencing some
interest in more building on the south side of our city. The city is also looking at senior citizens
population increasing in our area.
City of Zimmerman
We have had a lot development in the past five years, but feel we have adequately planned for
the growth.
4.1.3 Hazard Profiling Concept of Planning
The risk assessments identify the characteristics and potential consequences of a disaster, how much of
the community could be affected by a disaster, and the impact on community assets. A risk assessment
consists of three components — hazard identification, risk profile and vulnerability profile.
4.1.4 GIS and Risk Assessment
The risk analysis step in this assessment quantifies the risk to the population, infrastructure and
economy of the community. Hazards that can be geographically identified (wildfires, windstorms,
tornadoes, hail, floods) were mapped.
FEMA's Hazus tool in ArcGIS was used to estimate the damages incurred for a i% annual chance flood
and for general asset assessment. Hazus also generates aggregated loss estimates forthe entire county
due to a i% annual chance flood. Aggregate inventory loss estimates, which include building stock
analysis, are based upon the assumption that building stock is evenly distributed across each census
block. Therefore, it is possible that overestimates of damage will occur in some areas while
underestimates will occur in other areas. With this in mind, total losses tend to be more reliable over
larger geographic areas (groups of many blocks) than for individual census blocks. It is important to
note that Hazus is not intended to be a substitute for detailed engineering studies.
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Sherburne County Multi -Hazard Mitigation Plan, 2020
4.1.5 National Centers for Environmental Information (NCEI) Records
Historical storm event data was compiled from the National Centers for Environmental Information
(NCEI). NCEI records are estimates of damage reported to the National Weather Service (NWS) from
various local, state, and federal sources. However, these estimates are often preliminary in nature and
may not match the final assessment of economic and property losses related to given weather events.
The NCEI data included 377 reported events in Sherburne County between 195o and July 2019.
However, some weather event categories only had available data going back as recent as 3.996. No
records before 3.950 were available. A summary table of events related to each hazard type is included
in the hazard profile sections that follow. A full table listing all events, including additional details, is
included in Appendix C. NCEI hazard categories used in this plan are listed in Table 3.3.
Table 13. National Centers
Tornado
Thunderstorm Wind
Winter Weather/
Winter Storm/Blizzard
Excessive Heat/Heat
Environmental Information Historical Hazards
Hail
Flood/Flash Flood
Cold/Wind Chill
Lightning
4.s.6 FEMA Declared Disasters
Figure 6. FEMA Disaster Declarations by County
Another historical perspective is derived from FEMA-
declared disasters. Six major disaster and two emergency
declarations in Sherburne County have been made
between 1957 and June 2019 (Figure 6).
Table 14 and Table 3.5 show the details of the disasters
including payments for Public Assistance (PA) and
Individual Assistance (IA), listed underthe flooding and
severe storm profiles. No declarations were made for the
other storms listed in the NCEI database. Reviewing the
federal payments for damages from the declared
disasters is a way of correlating the impact from the NCEI
report.
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Sherburne County Multi -Hazard Mitigation Plan, 2020
Table 14. FEMA-Declared
Severe Storms,
Tornadoes,
8/25/1-997
High Winds,
DR-ii87
Flooding
Severe
Flooding, High
4/8/1-997
Winds, Severe
DR-1-1-75
Storms
Disasters in Sherburne County (1957-Tune 2019
6/28/1.997— Yes, Amount
Yes, Amount
Yes, Amount
Yes, Amount
— 7/27/1-99t Unknown
Unknown
Unknown
Unknown
3/21/1-997— Yes, Amount
Yes, Amount
Yes, Amount
Yes, Amount
5/24/1-997 Unknown
Unknown
Unknown
Unknown
Severe Winter i/i6/i997 3-/3/1-997— Yes, Amount Yes, Amount
Storms DR-ii58 2/3/i997 Unknown Unknown None None
Flooding
4/1.8/1.969 Yes, Amount Yes, Amount Yes, Amount Yes, Amount
DR 255 4/18/i969 Unknown Unknown Unknown Unknown
3/22/1.966 Yes, Amount Yes, Amount Yes, Amount Yes, Amount
Flooding DR-2i5 3/22/i966 Unknown Unknown Unknown Unknown
4/11./1.965 Yes, Amount Yes, Amount Yes, Amount Yes, Amount
Flooding DR i88 4/ii/i965 Unknown Unknown Unknown Unknown
Source: Data downloaded from https://www.fema.gov/openfema-dataset-disaster-declarations summaries-vi in 413/2oig. Values
are estimates collected at the time of the disaster.
Table 15. FEMA-Declared Emergencies in Sherburne County (1957-June 2019)
Hurricane
Katrina
9/1-3/2005
9/29/2005 None
Yes, Amount
Evacuation
EM-3242
—1.0/1/2005
Unknown
Drought
6/1-7/1-976
16/1-7/1-976 None
Yes, Amount
EM-301.3
Unknown
* Data downloaded from https://www.fema.gov/openfema-dataset-disaster-declarations-summaries-vi in 41312019. Values are
estimates collected at the time of the disaster.
The State Disaster Program in Minnesota was signed into state law in 203-4. It is 1/2 the threshold of the
federal/FEMA public assistance (only) program threshold. However, Sherburne County has not been
part of any state disaster declarations.
Table 3.6 depicts the historical projects in Sherburne County resulting from hazard mitigation funding.
Table 16. Historical Hazard Mitigation Fundin (HMGP and PDM) in Sherburne County
Year Project Description Sub -Grantee
Sherburne County All -Hazard
2010 Sherburne County HMGP $43,499
Mitigation Plan
* Data provided by MN HSEM in March 2019
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Sherburne County Multi -Hazard Mitigation Plan, 2020
4.2 Future Development
Because Sherburne County is vulnerable to a variety of natural hazards, the county government —in
partnership with the state government —must make a commitment to prepare for the management of
these events. Sherburne County is committed to ensuring that county elected and appointed officials
become informed leaders regarding community hazards so that they are better prepared to set and
direct policies for emergency management and county response.
At the local jurisdictional level, several communities did note an increase in development overthe last
five years as a factor for an increase in vulnerability to severe weather or disaster events (see Section
4.1.2, Vulnerability Assessment by Jurisdiction). In the development of local mitigation actions, all
jurisdictions were encouraged to consider hazard mitigation strategies that would reduce risk in
relation to future development, such as the update of local comprehensive plans, enforcement of
ordinances and incorporation of infrastructure improvements to reduce local vulnerabilities. (See
Appendix G Mitigation Actions by Jurisdiction).
The Sherburne County Emergency Management Director will work to keep the jurisdictions covered by
the Multi -Hazard Mitigation Plan engaged and informed during the plan's cycle. By keeping
jurisdictional leaders involved in the monitoring, evaluation and update of the MHMP, they will keep
their local governments aware of the hazards that face their communities and howto mitigate those
hazards through planning and project implementation.
Section 6 of this plan further outlines the process by which Sherburne County will address the
maintenance of this plan, including monitoring, evaluation, and update of the plan, as well as
implementation and continued public involvement.
4.3 Hazard Profiles
As part of the risk assessment, each natural hazard that poses risk to the county was independently
reviewed for its past hazard history, relationship to future trends, and jurisdictional vulnerability to
future events. A capabilities assessment was also conducted by the county to review the plans and
programs that are in place or that are lacking (program gaps or deficiencies) for the implementation of
mitigation efforts, as related to each natural hazard. An assessment was also conducted for local
jurisdictions to identify the plans, policies, programs, staff and funding they have in place in order to
incorporate mitigation into other planning mechanisms (see Section 5.3. Community Capability
Assessments and Appendix K. Local Mitigation Survey Report).
Summer Storms, all given a risk severity of "high" by the planning team, are profiled separately as
Tornadoes, Windstorms, Lighting and Hail in sections 4.3.3.through 4.3-4.
4.3.1 Tornadoes
Tornadoes are defined as violently -rotating columns of air extending from thunderstorms to the
ground, with wind speeds between 40-300 mph. They develop under three scenarios: (i) along a squall
line; (2) in connection with thunderstorm squall lines during hot, humid weather; and (3) in the outer
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Sherburne County Multi -Hazard Mitigation Plan, 2020
portion of a tropical cyclone. Funnel clouds are rotating columns of air not in contact with the ground;
however, the column of air can reach the ground very quickly and become a tornado.
Since 2007, tornado strength in the United States is ranked based on the Enhanced Fujita scale (EF
scale), replacing the Fujita scale introduced in 3.971. The EF scale uses similar principles to the Fujita
scale, with six categories from zero to five, based on wind estimates and damage caused by the
tornado. The EF Scale is used extensively by the NWS in investigating tornadoes (all tornadoes are now
assigned an EF Scale number), and by engineers in correlating damage to buildings and techniques with
different wind speeds caused by tornadoes. To see a comparative table of F and EF scales, see
httD://WWW.SDC.noaa.aov/faa/tornado/ef-scale.html.
In Minnesota, the peak months of tornado occurrence are June and July. The typical time of day for
tornadoes in Minnesota ranges between 4:00 p.m. and 7:00 p.m. Most of these are minor tornadoes,
with wind speeds under 3.25 miles per hour. A typical Minnesota tornado lasts approximately io
minutes, has a path length of five to six miles, is nearly as wide as a football field, has a forward speed of
about 35 miles an hour, and affects less than o.i% of the county warned.
Tornado History in Sherburne County
According to the NCEI, 12 tornadoes were reported in Sherburne County between 195o and July 203.9,
causing one death, 12 injuries, and over $2.5 million dollars in property damage. Tornado classification
ranged from EFo/Fo to F2 on the Enhanced Fujita Scale/Fujita Scale. These 12 tornadic events occurred
in 9 of the 69.4 years on record.
The most recent tornado occurred on March 6, 203.7, when an EFi tornado touched down west of
Zimmerman, before traveling northeast for nearly nine miles. The tornado dissipated before reaching
Highway 3.69. Winds of iio mph occurred, and the encompassing storm also produced tree damage due
to non-tornadic winds. This tornado, one of two on this date, was the earliest reported tornado in
Minnesota, occurring 12 days earlier than the previous record (see Tornadoes and Climate Change for
further information).
Two EFo tornadoes occurred in Clear Lake on June 3.7, 203.0. While a few dozen trees sustained damage,
no major property losses were reported.
An EFo tornado occurred near Becker in July of 20o8. Over its path of four miles, the tornado downed
trees, destroyed sheds and damaged homes. Approximately s3oo,000 dollars of crop damage also
resulted.
The most severe tornado to occur in the county occurred in July of 1967. Ranked as an F2, the tornado
traveled nearly 3.5 miles and its width reached 200 yards. In Sherburne County, the tornado caused one
death, 12 injuries, and $2.5 million in property damage.
Figure 7 below shows tornado touchdown points and tracks in Sherburne County. Historic tornado
events in the county are listed in Table 3-7.
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Sherburne County Multi -Hazard Mitigation Plan, 2020
Table 17. Historic Tornado Events in Sherburne County, 1950-/uh12019
Location or
County
Orrock
Date
3/6/2017
Magnitude Deaths
EF1 0
injuries Property
Damage
0 Unknown
Clear Lake
6/3-7/2010
EFo
0
0
Unknown
Clear Lake
6/17/2010
EFo
0
0
Unknown
Becker
7/19/2oo8
EFo
0
0
Unknown
Zimmerman
8/8/2004
Fo
0
0
Unknown
Clear Lake
5/30/2004
Fo
0
0
Unknown
Big Lake
5/9/2004
Fo
0
0
Unknown
Sherburne County
5/30/1991
Fo
0
o
Unknown
Sherburne County
4/27/1986
Fo
0
0
$250
Sherburne County
6/1-3/1983
Fo
0
0
$25,000
Sherburne County
7/1/1973
Fo
0
0
$2,50o
Sherburne County
7/22/1967
Fz
1
12
$2,500,000
Source: National Centers for Environmental Information
Figure 7. Tornado Touchdowns and Paths, 1950-
1
sM
• EFd TO
EFI
FI
- TornKlo TrKk
2019
Page143
0'
r
'Rg Lire % r
I
Ely_ Rivet
W a Source: NC£I
Sherburne County Multi -Hazard Mitigation Plan, 2020
To determine the probability of future tornado events in Sherburne County, all past observed tornado
events and the period in which they occurred were examined. Based on records in the NCEI Storm
Events Database through May of 203.9, the relative frequency of tornado events in the County is .04
events per year. This relative frequency can be used to inferthe probability of these events occurring in
the future.
Tornadoes and Climate Change
Tornadoes and other severe thunderstorm phenomena frequently cause as much annual property
damage in the U.S. as do hurricanes, and often cause more deaths. Although recent research has
yielded insights into the connections between global warming and the factors that cause tornados and
severe thunderstorms, such as atmospheric instability and increases in wind speed with altitude (Del
Genio, Yao, & Jonas, 2007), these relationships remain mostly unexplored, largely because of the
challenges in observing thunderstorms and tornadoes and simulating them with computer models
(National Climate Assessment Development Advisory Committee, 2013).
According to Harold Brooks of NOAA's National Severe Weather Laboratory, there is increasing
variability in the "start" of tornado season. The number of days with more than 3o EF1 or greater
tornadoes is increasing, while the number of days with at least one EFi or greater tornadoes is
decreasing. Thus, tornadoes are occurring on fewer days, but more are occurring on outbreak days.
The earliest reported tornado in Minnesota occurred on March 6, 2017, when two tornadoes touched
down in southern Minnesota, which was 12 days earlier than the previous record. The Zimmerman
tornado occurred 3.3.5 miles further north than the previous record from 1.968. According to State
Meteorologist Paul Huttner, "Those records fit seasonally and geographically with longerterm climate
trends pushing weather events earlier in the season and further northward" (Huttner, MPR News, 2017)
The state of Wisconsin has recorded three tornadoes in January and six in December during the period
of 3.$44-20i3 (National Weather Service Weather Forecast Office, 203-4), including a January tornado in
2008.
Vulnerability
The likelihood of a tornado does not vary geographically in Sherburne County. However, certain
populations may be more vulnerable and less resilient to the impacts of a tornado. Because
communication is so important before a tornadic event, citizens that are living in rural areas, have
limited mobility, do not live near an outdoor warning siren or do not use social media may be more
affected. According to the Social Vulnerability Index results in Figure 4, citizens with social factors that
make up the household composition and disability theme may be greatest in the area west of Elk River.
As with all summer storms, those who work outdoors or do not have permanent housing are also at
greater risk.
People living in mobile home parks are particularly vulnerable to tornadoes. While Minnesota law
requires most mobile home parks to have storm shelters, many do not (Sepic, 2017). There are four
mobile home parks in Sherburne County (see Figure A - 3.3).
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Sherburne County Multi -Hazard Mitigation Plan, 2020
Sherburne County Emergency Management identified that there are existing program gaps and
deficiencies that make its citizens more vulnerable to summer storms (includes tornadoes) and should
be addressed with new mitigation efforts to reduce vulnerability. They include:
Warning Siren Coverage— Sherburne County has a large warning siren system, however, some of the
sirens are old and have not been serviced frequently. This could lead to sirens not working properly,
causing residents to not receive warnings during an event. Emergency Services is currently working on
updating the county's outdoor warning system. Sherburne County has implemented CodeRED,
however, not everyone has enrolled in the community notification system. The outdoor warning
system seems to be the best method of warning the general public.
Backup Power— Not all county and city facilities have backup power in the event of a severe storm that
takes out power.
Storm Shelters/Community Safe Rooms — There are many areas throughout the county that do not have
safe rooms or storm shelters to protect vulnerable populations from severe storm and
tornadoes/extreme wind events (i.e., mobile home parks, campgrounds or schools).
4.3.2 Windstorms
FEMA defines winds in excess of 58 miles per hour, excluding tornadoes, as windstorms. Straight-line
winds and windstorms are used interchangeably in the plan. This hazard is treated as a different
category than tornadoes (which may also include high winds). Windstorms are among the nation's
most severe natural hazards in terms of both lives lost and property damaged.
Severe winds can damage and destroy roofs, toss manufactured homes off their pier foundations, and
tear light -framed homes apart. There are several different types of windstorms. A "downburst" is
defined as a strong downdraft with an outrush of damaging winds on or nearthe earth's surface.
Downbursts may have wind gusts up to i3o mph and are capable of the same damage as a medium-
sized tornado. A "gust front" is the leading edge of the thunderstorm downdraft air. It is most
prominent near the rain -free cloud base and on the leading edge of an approaching thunderstorm and
is usually marked by gusty, cool winds and sometimes by blowing dust. The gust front often precedes
the thunderstorm precipitation by several minutes. Straight-line winds, when associated with a
thunderstorm, are most frequently found with the gust front. These winds originate as downdraft air
reaches the ground and rapidly spreads out, becoming strong horizontal flow.
When wind speeds are not able to be measured, they are estimated. Part of the process to determine
wind speed is observing the damage. Table i8 lists the expected effects of increasing wind speeds.
Table 18.
26-38 knots Trees in motion. Lightweight loose objects (e.g., lawn furniture) tossed or toppled.
(30-44 mph)
39-49 knots Large trees bend; twigs, small limbs break; and a few larger dead or weak branches may
(45-57 mph) break. Old/weak structures (e.g., sheds, barns) may sustain minor damage (roof,
doors). Buildings partially under construction may be damaged. A few loose shingles may be
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Sherburne County Multi -Hazard Mitigation Plan, 2020
removed from houses. Carports may be uplifted; minor cosmetic damage may occurto
mobile homes.
Large limbs break; shallow -rooted trees may be pushed over. Semi -trucks may be
50-64 knots overturned. More significant damage to old/weak structures occurs. Shingles, awnings may
(58-74 mph) be removed from houses; damage to chimneys and antennas occurs; mobile homes and
carports incur minor structural damage.
Widespread damage to trees with trees broken/uprooted. Mobile homes may incur more
65-77 knots significant structural damage; Roofs may be partially peeled off industrial/commercial/
(75-89 mph) warehouse buildings. Some minor roof damage may occur to homes. Weak structures (e.g.,
farm buildings, airplane hangars) may be severely damaged.
78+ knots Many large trees broken and uprooted. Mobile homes may be severely damaged; moderate
(go+ mph) roof damage to homes may occur. Roofs may be partially peeled off homes and buildings.
Moving automobiles may be pushed off dry roads. Barns and sheds may be demolished.
Source: (National Weather5ervice, 2018)
Windstorm History in Sherburne County
Sherburne County frequently experiences winds blowing at over 5o knots. According to NCEI records,
there have been 123 thunderstorm/high wind events reported from January 1955 through July 203.9,
with wind speeds of up to 95 knots.
In July of 2o3.8, severe thunderstorms were accompanied by wind gusts that reached 70 mph at the
airport in St. Cloud. Other wind gusts in the northern half of Sherburne County reached 55 mph. One
month earlier, the airport in St Cloud had measured a gust of 6o mph.
Winds of over 6o mph occurred near Becker in July of 203.0, where several trees with diameters of
between 3.3-3.5 inches were uprooted. In addition, a farm irrigation system was destroyed. Property
damage estimates totaled $250,000. On the same day, severe winds brought extensive damage to the
town of Elk River as well. Trees toppled, a farm fence was damaged, and tents and sheds were blown
over at the Sherburne County Fair. The property damage estimate was sioo,000.
Severe thunderstorms brought winds of up to 6o knots to Elk River in May of 3.998. Trees were blown
over and buildings damaged. The total property damage estimate for Sherburne County was s3 million.
In July of 3.997 a severe windstorm with winds of up to 95 knots wreaked havoc in Sherburne County:
five airplanes were overturned at an airport; a roof was blown off a lumberyard, which injured a
motorist; hundreds of trees were toppled; roofs were ripped from structures such as a school,
apartment building, and store; traffic lights went down; a restaurant was destroyed; and a police car
was blown off the road.
To determine the probability of future windstorm events in Sherburne County, all past -observed
windstorm events (thunderstorm wind, high wind, and strong wind) and the period in which they
occurred were examined. Based on the records in the NCEI Storm Events Database, the relative
frequency of windstorm events in the County is 3..9 events per year. This relative frequency can be used
to infer the probability of these events occurring in the future.
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Sherburne County Multi -Hazard Mitigation Plan, 2020
Severe windstorms (winds greater than 5o knots) in Sherburne County are shown in
Figure 8.
Figure 8. Severe Windstorms in Sherburne County, 1955-April 2019
0
t C7
® r�
{
&Kkrt o
r
. 1
iNo Lake,
*0 a
MagnUde m Knots
O St-S3
0 53 - 57
O $7-62
0 62,68
0 68 - 95
�r
t0
r
t ,
P
L
Rk River
_ c.—
1k77T_• Z _0J
Windstorms and Climate Change
Lack of high -quality long-term data sets make assessment of changes in wind speeds very difficult
(Kunkel, et al., 2013). One analysis generally found no evidence of significant changes in wind speed
distribution. Othertrends in severe storms, including the numbers of hurricanes and the intensity and
frequency of tornadoes, hail, and damaging thunderstorm winds are uncertain. Since the impact of
more frequent or intense storms can be largerthan the impact of average temperature, climate
scientists are actively researching the connections between climate change and severe storms
(National Climate Assessment Development Advisory Committee, 2013).
Vulnerability
Vulnerability to injury from all kinds of windstorms decreases with adequate warnings, warning time,
and sheltering in a reinforced structure. Vulnerability to structures depends upon construction of the
building and infrastructure. Residents of mobile homes are more vulnerable to fatality or injury from
windstorms because mobile homes are not able to withstand high winds as well as other structural
Page 147
Sherburne County Multi -Hazard Mitigation Plan, 2020
dwellings. Wind in excess of 50 mph (43.4 knots) is the lower limit of wind speeds capable of damaging
mobile homes (American Meteorological Society, 2004). Steps to mitigate these vulnerabilities have
been taken but have not proven sufficient. For example, mobile home parks with io or more homes
that received their primary license after March i, 3.998, are required to provide storm shelters that meet
standards specified by the commissioner of administration (Minnesota Department of Health, 2oi8).
However, mobile home parks often do not provide the required storm shelters. Building codes have
also changed to improve the strength of new mobile home construction, but there are still many older
mobile homes in use that do not meet these new standards.
According to NOAA's Storm Prediction Center, from 1985-2002, 49% of tornado fatalities in the United
States were people who remained within or attempted to flee from mobile homes (American
Meteorological Society, 2004). Given the vulnerability of mobile home residents to windstorm events, it
is important to have a general understanding of where mobile homes are located. Figure A - 3.3 displays
the locations of the four mobile home parks in Sherburne County.
The likelihood of a windstorm event does not vary geographically in Sherburne County. Because
communication is so important before a windstorm event, citizens that are in living in rural areas, have
limited mobility, do not live near an outdoor warning siren or do not use social media may be more
affected. According to the Social Vulnerability Index results in Figure 4, citizens with social factors that
make up the household composition and disability theme may be greatest in the area west of Elk River.
As with all summer storms, those who work outdoors or do not have permanent housing are also at
greater risk.
Sherburne County Emergency Management identified that there are existing program gaps and
deficiencies that make its citizens more vulnerable to summer storms (includes windstorms) and should
be addressed with new mitigation efforts to reduce vulnerability. They include:
Warning Siren Coverage— Sherburne County has a large warning siren system, however, some of the
sirens are old and have not been serviced frequently. This could lead to sirens not working properly,
causing residents to not receive warnings during an event. Emergency Services is currently working on
updating the county's outdoor warning system. Sherburne County has implemented CodeRED,
however, not everyone has enrolled in the community notification system. The outdoor warning
system seems to be the best method of warning the general public.
Backup Power— Not all county and city facilities have backup power in the event of a severe storm that
takes out power.
Storm Shelters/Community Safe Rooms — There are many areas throughout the county that do not have
safe rooms or storm shelters to protect vulnerable populations from severe storm and
tornadoes/extreme wind events (i.e., mobile home parks, campgrounds or schools).
4.3.3 Lightning
Lightning typically occurs as a by-product of a thunderstorm. In only a few millionths of a second, the
air near a lightning strike is heated to 50,000°F, a temperature hotter than the surface of the sun. The
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Sherburne County Multi -Hazard Mitigation Plan, 2020
hazard posed by lightning is significant. High winds, rainfall, and a darkening cloud cover are the
warning signs for possible cloud -to -ground lightning strikes. While many lightning casualties happen at
the beginning of an approaching storm, more than half of lightning deaths occur after a thunderstorm
has passed. Lightning can strike more than io miles from the storm in an area with clear sky above.
Lightning strikes the ground approximately 25 million times each year in the U.S. According to the
NWS, the chance of an individual in the U.S. being killed or injured by lightning during a given year is i
in 240,000 (NOAA National Severe Storms Laboratory, n.d.).
Lightning is the most dangerous and frequently encountered weather hazard that most people in the
United States experience annually. Lightning is the second most frequent killer in the U.S., behind
floods and flash floods, with nearly ioo deaths and 500 injuries annually. The lightning current can
branch off to strike a person from a tree, fence, pole, or othertall object. In addition, an electrical
current may be conducted through the ground to a person after lightning strikes a nearby tree,
antenna, or othertall object. The current may also travel through power lines, telephone lines, or
plumbing pipes to damage property or cause fires.
Lightning History in Sherburne County
A 27-year dataset revealed cloud -to -ground lightning strikes occur on average 2,333 times per year in
Sherburne County, or 5.2 strikes per square mile (NOAA NCEI). The NCEI Storm Events Database,
which records lightning events resulting in injury, death, or damages, reported one lightning event in
Sherburne County between 3.996 and July of 203.9. This incident occurred in September of 2005 when
lightning struck an empty home in Elk River, starting a fire that destroyed two bedrooms and a garage
The total property damage is unknown.
To determine the probability of future lightning events in Sherburne County, all past -observed
lightning events and the period in which they occurred were examined. Based on the records in the
NCEI Storm Events Database, the relative frequency of lightning events in the County is .04 events per
year. This relative frequency can be used to infer the probability of these events occurring in the future.
Lightning and Climate Change
The projected possible intensity and frequency of tornadoes, hail, and damaging thunderstorm winds,
the conditions associated with lightning, are uncertain (National Climate Assessment Development
Advisory Committee, 2013). Severe rain events are becoming more common and may include an
additional risk of lightning.
Vulnerability
The magnitude of summer storms each year is unpredictable and within Sherburne Countythe
vulnerability ofjurisdictions to lightning does not vary geographically. As with all summer storms, those
who work outdoors or do not have permanent housing are most at risk.
Sherburne County Emergency Management identified that there are existing program gaps and
deficiencies that make its citizens more vulnerable to summer storms (includes lightning) and should be
addressed with new mitigation efforts to reduce vulnerability. They include:
Page149
Sherburne County Multi -Hazard Mitigation Plan, 2020
Warning Siren Coverage— Sherburne County has a large warning siren system, however, some of the
sirens are old and have not been serviced frequently. This could lead to sirens not working properly,
causing residents to not receive warnings during an event. Emergency Services is currently working on
updating the county's outdoor warning system. Sherburne County has implemented CodeRED,
however, not everyone has enrolled in the community notification system. The outdoor warning
system seems to be the best method of warning the general public.
Backup Power— Not all county and city facilities have backup power in the event of a severe storm that
takes out power.
Storm Shelters/Community Safe Rooms — There are many areas throughout the county that do not have
safe rooms or storm shelters to protect vulnerable populations from severe storm and
tornadoes/extreme wind events (i.e., mobile home parks, campgrounds or schools).
4.3.4 Hail
Hailstorms are a product of severe thunderstorms. Hail forms when strong updrafts within the storm
carry water droplets above the freezing level, where they remain suspended and continue to grow
larger, until their weight can no longer be supported by the winds. Hailstones can vary in size,
depending on the strength of the updraft. The NWS uses the following descriptions when estimating
hail sizes: pea size is 1/-inch, marble size is 1/-inch, dime size is 3/4-inch, quarter size is 1-inch, golf ball
size is i 3/4-inches, and baseball size is 2 3/4-inches. Individuals who serve as volunteer "storm spotters"
for the NWS are located throughout the state, and are instructed to report hail dime size (3/4-inch) or
greater. Hailstorms can occur throughout the year; however, the months of maximum hailstorm
frequency are typically between May and August. Although hailstorms rarely cause injury or loss of life,
they can cause significant property damage.
Hail History in Sherburne County
According to the NCEI Storm Events Database, Sherburne County has experienced 146 hailstorms from
January 1955 through July 2019. A number of of these hailstorms resulted in property damage. The
following are the three most recent hails events to cause damage.
Hail in September of 2oi6 damaged a vehicle in the Aspen Hills area of Big Lake Township. Property
damage was estimated at $2,000.
On July 1, ZOii, several reports of large hail occurred in the Big Lake area. Hail size reached 2.75 inches,
and $50,000 in property damage was reported.
Hail the size of golf balls caused extreme damage to Sherburne County in September of 2005.
Hundreds of homes received damage to siding and roofs. Many vehicles were also damaged. One
newspaper reported that two insurance companies totaled over 3.,500 claims in the area. The NCEI
property damage estimate was $25 million.
No deaths or injuries have been reported in the county due to hail
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Sherburne County Multi -Hazard Mitigation Plan, 2020
To determine the probability of future hail events in Sherburne County, all past -observed hail events
and the period in which they occurred are examined. Based on the records in the NCEI Storm Events
Database, the relative frequency of hail events in the County is 2.3 events per year. This relative
frequency can be used to infer the probability of these events occurring in the future.
Severe hailstorms (hail greater than 1") are mapped in Figure g. Table 19 shows storms producing hail
greater than 1-inch diameter in Sherburne County.
Table 19. Storms producing hail greater than 1-inch diameter in Sherburne County, 1950-July 2019
�.il
7/26/2019 4
�.
0 7/1/2011
Hail
(inc hes)
(inches)
1.25
Hail
Date Size
(inches)
0 9/4/2005 2
Injuries
0
7/26/2019
2.5
0
5/10/2011.
1.75
0
6/13/2005
1.75
0
7/26/2019
2
0
5/10/203.1.
1.75
0
6/8/2004
1.75
0
7/26/2019
1.75
0
6/25/2010
2
0
6/26/1998
1.5
0
7/26/2019
1.25
0
6/17/2010
2.5
0
10/5/1993
1.25
0
7/26/2019
1.25
0
6/17/2010
1.25
0
8/27/1990
4
0
7/15/2019
1.25
0
7/21/2009
1.25
0
7/24/1g81
1.75
0
7/15/2019
1.25
0
5/31/2oo8
1.75
0
7/24/1g81
1.75
0
8/31/2018
1.25
0
5/31/2oo8
1.5
0
7/11/i98o
2.75
0
9/6/2o16
1.5
0
5/25/2oo8
1.75
0
6/4/1977
1-75
0
6/9/2015
1-75
0
5/25/2oo8
1.75
0
6/4/1977
1.25
0
9/19/2013
1.5
0
7/8/2007
1.25
0
6/12/1976
1.5
0
9/19/2013
1.25
o
9/21/2005
1.75
0
7/1/2011
2.75
0
9/21/2005
1.25
o
Source: National Centers for Environmental Information
Hail and Climate Change
According to the Federal Advisory Committee Draft National Climate Assessment (NCA), trends in
severe storms, including the numbers of hurricanes and the intensity and frequency of tornadoes, hail,
and damaging thunderstorm winds are uncertain. Since the impact of more frequent or intense storms
can be larger than the impact of average temperature, climate scientists are actively researching the
connections between climate change and severe storms (National Climate Assessment Development
Advisory Committee, 2013).
The occurrence of very heavy precipitation has increased in Minnesota in recent decades and future
projections also indicate this will continue (International Climate Adaptation Team, 2013). While it is
unknown if this precipitation will occur during severe storms that produce hail, the possibility has not
been ruled out.
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Sherburne County Multi -Hazard Mitigation Plan, 2020
Figure 9. Severe Hailstorms in Sherburne County, 1
Q
leer Lake
J
c
Sara M Indies
a L - 1-25
O L.25 • 1.5
0 I.S - 2
Q 2 - 2.75
0 2.75 - 4
ki,.l
2019
z
0
00 G.
0 Elk Rsv'!r
!l
Data -flute: RCEI
Vulnerability
Sherburne County has experienced hail greater than one inch in diameter in 3.8 of the 68 full years on
record, or in 26% of the years on record.
The magnitude of sum merstorms each year is unpredictable and within Sherburne County the
vulnerability of jurisdictions to summer storms does not vary geographically.
Sherburne County's agricultural lands and structures are vulnerable to hail damage and its citizens to
injury and possibly death. Data from the Spatial Hazard Events and Losses Database for the United
States (SHELDUS) was used to identify the County's monetary losses due to hail damage to crops,
property, injury, and death. From 3.96othrough 2oi8 Sherburne County reported $3.8,297,250 in hail
damages, ranking 16th among Minnesota counties in total hail damages. Sherburne County's losses are
primarily due to property damages reported at$3.7,379,695, followed by $505,054 in crop damages, and
$412,501for injuries and fatalities (CEMHS, 2019).
As with all summer storms, those who work outdoors or do not have permanent housing are at greater
risk during hailstorms.
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Sherburne County Multi -Hazard Mitigation Plan, 2020
Severe Summer Storms (Tornadoes, Windstorms, Lightning, Hail) and Electrical Outages
According to NOAA data, the natural hazards that caused the greatest overall property loss in
Minnesota between 3.996 and 203.4 were thunderstorms and lightning, at s86.3 million per year. The
state also experienced 23 electric transmission outages from 3.992 to 2009, five of which were due to
heat waves and thunderstorms. On average, the number of people affected annually by all electric
outages during 2oo8 to 203.3 in Minnesota was 449,995, with a high of 3.,46o,810 in 2011 (U.S.
Department of Energy, 203-5). Figure io below shows the seasonality of electric outages by month for
the years 2oo8-2oi3, and Figure ii shows the causes of outages in the state between 2oo8 and 203.3,
with the largest cause being weather/falling trees.
Figure 10. Electric Utility Reported Power Outages by Month in Minnesota (2008-2013)
12
10
8
6
4
2
0
ZIP
k �Q ao?'
Source: U.S. Department of Energy, 2015
Figure 11. Causes of Electric -Utility Reported Outages in Minnesota (2008-2013)
17
F97
73
Source: U.S. Department of Energy, 2015
r Animal
a Faulty Equipment/ Human Frt r
■ overdemand
■ Planned
• Theft /Vandalism
■ unknown
vehlcle Accident
■ Weather j Falling Trees
u of Incidents
i 20D8
■ 2009
■ 2010
E 2011
• 2012
■ 2013
Sherburne County Emergency Management identified that there are existing program gaps and
deficiencies that make its citizens more vulnerable to summer storms (includes hail) and should be
addressed with new mitigation efforts to reduce vulnerability. They include:
Page153
Sherburne County Multi -Hazard Mitigation Plan, 2020
Warning Siren Coverage— Sherburne County has a large warning siren system, however, some of the
sirens are old and have not been serviced frequently. This could lead to sirens not working properly,
causing residents to not receive warnings during an event. Emergency Services is currently working on
updating the county's outdoor warning system. Sherburne County has implemented CodeRED,
however, not everyone has enrolled in the community notification system. The outdoor warning
system seems to be the best method of warning the general public.
Backup Power— Not all county and city facilities have backup power in the event of a severe storm that
takes out power.
Storm Shelters/Community Safe Rooms — There are many areas throughout the county that do not have
safe rooms or storm shelters to protect vulnerable populations from severe storm and
tornadoes/extreme wind events (i.e., mobile home parks, campgrounds or schools).
4.3.5 Flash Flood and Riverine Flood
Flooding is a significant natural hazard throughout the United States. The type, magnitude, and
severity of flooding are functions of the amount and distribution of precipitation over a given area, the
rate at which precipitation infiltrates the ground, the geometry and hydrology of the catchment, and
flow dynamics and conditions in and along the river channel. Upstream floods, also called flash floods,
occur in the upper parts of drainage basins and are generally characterized by periods of intense rainfall
over a short duration. These floods arise with very little warning and often result in locally intense
damage, and sometimes loss of life, due to the high energy of the flowing water. Flood waters can snap
trees, topple buildings, and easily move large boulders or other structures. Six inches of rushing water
can upend a person; another 18 inches might carry off a car. Generally, upstream floods cause damage
over relatively localized areas, but they can be quite severe. Urban flooding is a type of upstream flood,
which involves the overflow of storm drain systems and can be the result of inadequate drainage
combined with heavy rainfall or rapid snowmelt. Upstream or flash floods can occur at any time of the
year in Minnesota, but they are most common in the spring and summer. Four flash floods have been
recorded in Sherburne County since 3.996.
Riverine floods refer to floods on large rivers at locations with large upstream catchments. Riverine
floods are typically associated with precipitation events that are of relatively long duration and occur
over large areas. Flooding on small tributary streams may be limited, but the contribution of increased
runoff may result in a large flood downstream. The lag time between precipitation and the flood peak is
much longer for riverine floods than for upstream floods, generally providing ample warning for people
to move to safe locations and, to some extent, secure some property against damage.
Nationwide, floods caused 4,586 deaths from 1.959 to 2005while property and crop damage averaged
nearly s8 billion per year (in 2oii dollars) from 3.981.-2011 (Georgakakos, et al., 2014).
During the past several decades, agencies have used the "ioo-year floodplain" as the design standard
for projects funded by the federal government. However, today floods of that magnitude are occurring
far more often than once per century (Natural Resources Defence Council, 2015). In recognition of
increasing risks, in January of 2015 the President issued an executive orderthat updates flood
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Sherburne County Multi -Hazard Mitigation Plan, 2020
protection standards that guide federally -funded projects in or near flood plains or along coastlines.
These new standards require federally -funded projects to either build two feet above the soo-year flood
elevation for standard projects and three feet above for critical buildings like hospitals and evacuation
centers; or build to the 500-year flood elevation (The White House, 2015).
Flood History in Sherburne County
The NCEI has recorded two floods and four flash floods in Sherburne County since 1996. The most
recent flood occurred in 2005, when street flooding was reported on the eastern side of the Mississippi
River in St. Cloud. In Big Lake, there was 4.9 inches of rain recorded within go minutes. In Elk River, a
car was stranded by floodwaters on a main street, and a total of 5.89 inches of rain were reported. In
Zimmerman, a total of 6.2 inches of rain fell.
A flash flood occurred in July of 2002, when four to seven inches of rain fell, flooding basements and
roads. Highway 16g was closed between Zimmerman and Princeton. The NCEI recorded $25,000 in
property damage.
Om April of zoos severe flash flooding occurred, causing $2 million in property damage in Sherburne
County. In Santiago a dike along County Road 11 collapsed, allowing water to crash into town. Around
twelve homes and businesses were flooded, and evacuations resulted.
Table zo below lists Sherburne County's historical floods as recorded by the NCEI. No deaths or injuries
were reported.
Table 20. Sherburne County Floods, 1996-July 2019
LocationProperty
County
Sherburne County
Date Type
9/s2/2oo5 Flash Flood
o
injuries Damage
o Unknown
Elk River
6/24/2003
Flash Flood
o
o
Unknown
Sherburne County
7/1-0/2002
Flash Flood
o
o
$25,000
Sherburne County
4/22/2oos
Flash Flood
o
o
$2,000,000
Sherburne County
4/1/2001.
Flood
o
o
Unknown
Sherburne County
4/4/1-997
Flood
o o
Unknown
The National Oceanic and Atmospheric Administration (NOAA) Advanced Hydrologic Prediction
Service provides information from gauge locations at points along various rivers across the United
States. There are two USGS gauging stations located in Sherburne County. Table 21 below shows data
on the highest -recorded gauge heights at each station.
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Sherburne County Multi -Hazard Mitigation Plan, 2020
Table 21. Historical Flood Crests for USGS Gauging Stations in Sherburne County
Historical Flood Crests for Mississippi River at St.
Elk River near Big Lake Cloud
4/16/1965 io.86
4/10/1952 10.36
5/7/1912 10.10
4/io/i969 io.o8
6/16/1984 9.87
4/27/2001 9.43
4/7/1997 9•02
4/5/1916 8.6o
4/4/1943 8•04
4/11/1951 7.68
Source: USGS
Flooding and Climate Change
As Minnesota's climate changes, the quantity and character of precipitation is changing. Average
precipitation has increased in the Midwest since 3.9oo, with more increases in recent years. The
Midwest has seen a 45% increase in very heavy precipitation (defined as the heaviest i% of all daily
events) from 3.958 to 2011 (National Climate Assessment Development Advisory Committee, 2013).
This precipitation change has led to amplified magnitudes of flooding. Increased precipitation may also
show seasonal changes, trending toward wetter springs and drier summers and falls. An example of a
recent year with this character was 203.2, when many MN counties were eligible for federal disaster
assistance for drought, while others were eligible for flooding, and seven were eligible for both in the
same year (Seeley, 203.3). In 2007, 24 Minnesota counties received drought designation, while seven
counties were declared flood disasters. In 2012, 55 Minnesota counties received federal drought
designation at the same time ii counties declared flood emergencies. In addition, the yearly frequency
of the largest storms —those with three inches or more of rainfall in a single day — has more than
doubled injust over 50 years. In the past decade, such dramatic rains have increased by more than 7%
(MN Environmental Quality Board, 2014).
Southeastern Minnesota has experienced three i000-year floods in the past decade: in September
2004, August 2007, and September 2010 (Meador, 2013). The 2004 flood occurred when parts of south-
central Minnesota received over eight inches of precipitation. Faribault and Freeborn counties received
over io inches in 36 hours. The deluge led to numerous reports of stream flooding, urban flooding,
mudslides, and road closures (MN DNR, 2004). During the 2007 event, 15.10 inches fell in 24 hours in
Houston County, the largest 24-hour rainfall total ever recorded by an official National Weather Service
reporting location. The previous Minnesota record was 3.o.84 inches in 3.972. The resulting flooding from
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Sherburne County Multi -Hazard Mitigation Plan, 2020
the 2007 rainfall caused seven fatalities (MN DNR, 2007). In September 2oio, a storm on the 22-23rd
resulted in more than six inches of rain falling over 5,000 square miles in southern Minnesota. Rainfall
totals of more than eight inches were reported in portions of io counties. The heavy rain, falling on soils
already sodden from a wet summer, led to numerous reports of major rural and urban flooding. For
many monitoring locations in southern Minnesota, stream discharge resulting from the deluge was the
highest ever seen during an autumn flood (Minnesota Climatology Working Group, 2010).
June 203.4 was the wettest month on record in Minnesota, with a state -averaged rainfall of 8.o3 inches.
This broke the previous record of 7.32 inches, which occurred in both July 1.897 and June 3.93-4. Rainfall
totals for much of the state ranked above the 95th percentile when compared with the historical record;
in some cases the totals tripled that of the historical rainfall average for June. A presidential disaster
declaration was declared due to the severe storms, winds, flooding, landslides, and mudslides (DR-
0.82), which included 37 Minnesota counties and three Indian Reservations.
Vulnerability and Hazus Hazard Analysis
A potential risk and economic loss analysis for a i% annual chance flood was performed using a FEMA
tool, Hazus for ArcGIS. A Digital Flood Insurance Rate Map (DFIRM) defined the i%annual chance flood
boundary and a io-meter Digital Elevation Model (DEM) was used to create a flood depth grid. The
resulting Hazus i%annual chance floodplain output is shown in Figure 12.
Losses were based on Sherburne County -specific building data. Sherburne County provided parcel tax
and spatial databases that included building valuations, occupancy class, square footage, year built, and
number of stories. The quality of the inventory is the limiting factorto a Hazus flood model loss
estimation. Best practices were used to use local data and assumptions were made to populate missing
(but required) values.
Hazus reports the percent damage of each building in the floodplain, defined by the centroid of each
building footprint polygon derived using LiDAR data. After formatting the tax and spatial data, 61,205
points were input to Hazus to represent buildings with a total estimated building plus contents value of
$13.5 billion. Approximately 87%of the buildings (and 65%of the building value) are associated with
residential housing.
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Sherburne County Multi -Hazard Mitigation Plan, 2020
Figure 12. 1 % Annual Chance Floodplain (DFIRMs) in Sherburne County
44
CWA Sour MN Vto
The estimated loss by occupancy class for the entire county is shown in Table 22.
Table 22. Summary of 1% Annual Chance Flood Loss Estimation bll Occupancu Class.
Residential 53,647 $8,774,236,410 66o $85,773,620 443 $1712221224
Commercial 1,334 $702,958,818 64 $92,936 1 $6,001
Other 6,224 $4,005,451,322 41 $13,338,6o6 6 $1,705,049
Totals 61,205 $13,482,646,550 765 $99,205,162 450 $3-8,933,274
The distinction between the building attributes within a parcel was not known. The maximum percent
damage to a building in that parcel was used to calculate loss estimates for the entire parcel. The sum
of all the losses in each census block were aggregated for the purposes of visualizing the loss. An
overview of these results with the percent damage of buildings is shown in Figure 13. Please note: It is
possible for a point to report no loss even if it is in the flood boundary. For example, if the water depth is
minimal relative to i -floor height, there may be o%damage.
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Sherburne County Multi -Hazard Mitigation Plan, 2020
1d.UVerVIeW 0? 17. Annual Lnance t100a Loss estimation in 5nerourne uoun
% Buttdinq Damage
is 10%
a S2s%
1 509E
• c 99%
Affegated Laid; by ftc%kes Wu k
5 ;125,040
11300,000
5 $750,W0
S 31,675,090
12
�*l
r
Date Sourtr.: MN ANR, Haruw, Sherbu+ne [putty
Hazus Critical Infrastructure Loss Analysis
Critical facilities and infrastructure are vital to the public and their incapacitation or destruction would
have a significant negative impact on the community. These facilities and infrastructures were
identified in Section 3.8 and verified by Sherburne County.
Buildings identified as essential facilities forthe Hazus flood analysis include hospitals, police and fire
stations, and schools (often used as shelters). Loss of essential facilities are vulnerable to structural
failure, extensive water damage, and loss of facility functionality during a flood, negatively impacting
the communities relying on these faci I ities' services.
It is also important to identify if any critical infrastructure within the i% annual chance floodplain, given
the higher risk of the facility or infrastructure being incapacitated or destroyed during a flood.
Fortunately, none of Sherburne County's essential or critical facilities included in the Hazus flood
analysis are located within the floodplain.
Losses were estimated by Census County Subdivision. The highest potential losses are around Briggs,
Rush and Elk Lakes in Palmer and Clear Lake Townships. The cities of Elk River and Princeton had the
highest city losses and Elk River City had a relatively high number of structures in the i% annual chance
flood boundary. All jurisdictions with buildings identified in the i% annual chance flood zone are listed
in Table 23.
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Sherburne County Multi -Hazard Mitigation Plan, 2020
Table 23. 1 % Annual Chance Flood Building -Related Loss Estimates by Jurisdiction in Sherburne County
Becker city
o
$ -
Beckertownship
21
$ 2,244,991.01
$ 4,025.00
$1,282,173-42
Big Lake city
Big Lake township
Blue Hill township
Clear Lake township
1
46
1
$ 108,250.61
$ 2,460,901.37
77
Elk River city
Haven township
Livonia township
Orrock township
Palmertownship
Princeton city
Zimmerman city
43
$ i,8o8,259.56
$ 119,106.71
$ 297,506.00
$ 921,706.94
$ 4,990,684.74
$1,674,719.55
$ 745,772.10
1
2
23
144
4
33
*It is possible for a building to register no loss even if it is in the flood boundary. For example, if the water depth is minimal relative
to 1-floor height, there maybe o% damage.
The flood -related building loss estimation for Palmer and Clear Lake Townships is show in Figure 14.
Page I6o
Sherburne County Multi -Hazard Mitigation Plan, 2020
14. "ign loss estimations in Palmer ana utear LaKe 1
0.
r-
% Ekolding Damage
a 's 10%
5 25% or
• S 5{1%
f 5 99%
Acju-f-gated Lns3 brf Census Mock
$125,000 ~
c $300,000
s s750,o00
$1,b75,000
T .
fA
Page 161
P&kTw Tame
1
. mN diet mam,
Sherburne County Multi -Hazard Mitigation Plan, 2020
The results of the loss estimations for Princeton City (Sherburne County) and Elk River are found in
Figure iS and
f iscs County
!E
�
O 5 10%
-
0 s 25%
i3
S 99%
Aggregated Loss by
Census Block
D
'
f
S $125,000
5 $300,000
t
S $750,OAU
s $1,675,Ot10
1
Data Source: Mh QNR, Vitus, Sherburne Courr V
Figure 3.6 respectively
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Sherburne County Multi -Hazard Mitigation Plan, 2020
tlgure 15. bullaing 1-looa Loss Lstlmatlon for 17. Annual Lnance 1-tooa In 1 rinceton (-"
.y
Lacs County
% Build" Damage
• - ,
f
6
0 5 E0°Ia
■ S 9rJ4¢r
� �'
�
Aggregated Loss bV Census RbCk
�
$125,000
S $300,000
•4
S $750,000 t —
$1,675,00D • •
' � Y
Data Smrcc VIh DNR, riarlrs, ShLsburric County
tlgure 1b.bullaing 1-IOOa LOSS Lstlmatlon for 17. Annual L-nance tlooa in Llk ivver C.ltf
t
Somme
swift Dwmw
o $25%
_ w
AdLKrA tr cenws 5106
s fi25,(l00
S $I00,000
S $750,000
S f1,675,000
DMA Soule MIN DNQ. Hai -us, STturne County
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Sherburne County Multi -Hazard Mitigation Plan, 2020
Sherburne County Emergency Management identified that there are existing program gaps and
deficiencies that make its citizens more vulnerable to flooding and should be addressed with new
mitigation efforts to reduce vulnerability. They include:
Increasing Culverts and Raising Roads — Some roads, bridges and culverts within the county continue to
need improvements as they are impacted by annual high -rain events. The Sherburne County Public
Works Department works to monitor where improvements are needed to mitigate against flood
damage.
National Flood Insurance Program
The NFIP is a federal program created by Congress to mitigate future flood losses nationwide through
sound, community -enforced building and zoning ordinances and to provide access to affordable,
federally -backed flood insurance protection for property owners. The NFIP is designed to provide an
insurance alternative to disaster assistance to meet the escalating costs of repairing damage to
buildings and their contents caused by floods. Participation in the NFIP is based on an agreement
between local communities and the federal government that states that if a community will adopt and
enforce a floodplain management ordinance to reduce future flood risks to new construction in Special
Flood Hazard Areas (SFHAs), the federal government will make flood insurance available within the
community as a financial protection against flood losses. Following is the NFIP participation status for
Sherburne County.
Table 24. NFIP Participation in Sherburne
Becker
Participating in NFI
Becker Township
Participating in NFI
Big Lake
Participating in NFI
Clear Lake
Participating in NFI
Elk River
Participating in NFI
Princeton
Participating in NFI
Sherburne County
Participating in NFI
St. Cloud
Participating in NFI
Zimmerman
Participating in NFI
Source: MN DNR (data current
as of 1o%/2o18)
icipation
P FEMA Mapped High Risk Areas
Date
05/04/00
P
FEMA Mapped High Risk Areas
11/1.6/11
P
FEMA Mapped High Risk Areas
05/04/00
P
FEMA Mapped High Risk Areas
05/04/00
P
FEMA Mapped High Risk Areas
05/02/77
P
FEMA Mapped High Risk Areas
05/10/74
P
FEMA Mapped High Risk Areas
o5/1g/81
P
FEMA Mapped High Risk Areas
12/17/73
P
FEMA Mapped High Risk Areas
11/16/11.
4.3.6 Severe Winter Storms —Blizzards, Ice Storms
Blizzards are storms that contain heavy snowfall, strong winds and cold temperatures. The
combination of these elements creates blinding snow with near zero visibility, deep snowdrifts, and life -
threatening wind chill temperatures. Blizzards are the most dramatic and destructive of all winter
storms that occur within Sherburne County, and are generally characterized as storms bearing large
amounts of snow accompanied by strong winds. They have the ability to completely immobilize travel
in large areas and can be life -threatening to humans and animals in their path. According to the
National Weather Service (NWS), there is no fixed temperature requirement for blizzard conditions, but
the life -threatening nature of lowtemperatures in combination with blowing snow and poor visibility
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Sherburne County Multi -Hazard Mitigation Plan, 2020
increases dramatically when temperatures fall below 20°F. Blizzards typically occur between October
and April; however, they occur most frequently from early November to late March.
The greatest numbers of blizzards historically have occurred in the months of January, followed by
March and November, respectively. Sherburne County, along with all areas of Minnesota, is susceptible
to blizzards.
Figure 17. Armistice Day Blizzard, 1940
Damages from blizzards can range from
human and livestock deaths to significant
snow removal costs. Stranded drivers can
make uninformed decisions, such as leaving
the carto walk in conditionsthat putthem at
risk. Because of the blinding potential of heavy
snowstorms, drivers are also at risk of
collisions with snowplows or other road traffic.
Drivers and homeowners without emergency
plans and kits are vulnerable to the life -
threatening effects of heavy snowstorms such as power outages, cold weather, and inability to travel,
communicate, obtain goods or reach their destinations. Heavy snow loads can cause structural
damage, particularly in areas where there are no building codes or where residents live in manufactured
home parks. The frequency of structural fires tends to increase during heavy snow events, primarily due
to utility disruptions and the use of alternative heating methods by residents.
Between the years of 1975 and i993., there were 49 deaths associated with blizzards statewide, or an
average of three deaths per year. Deaths attributable to blizzards have dropped in recent years,
primarily due to increased weather awareness and warning capabilities across the state. The economic
costs of winter storms are generally not recorded by the NCEI; however, a winter storm in November
2ooi resulted in property damage of $500,000.
Ice storms are described as occasions when damaging accumulations of ice occur due to freezing rain.
The terms freezing rain and freezing drizzle warn the public that a coating of ice is expected on the
ground and other exposed surfaces. Heavy accumulations of ice can bring down trees, electrical wires,
telephone poles and lines, and communication towers.
Communications and power can be disrupted for days while utility companies work to repair extensive
damage. Ice forming on exposed objects generally ranges from a thin glaze to coatings more than one
inch thick. Even small accumulations of ice on sidewalks, streets, and highways may cause extreme
hazards to Sherburne County motorists and pedestrians. Sleet does not stick to trees and wires, but
sleet of sufficient thickness does cause hazardous driving conditions. Heavy sleet is a relatively rare
occurrence, defined as an accumulation of ice pellets covering the ground to a depth of 1/-inch or more.
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Sherburne County Multi -Hazard Mitigation Plan, 2020
Ice and sleet storms typically occur from October through April. The NWS notes that over 85% of ice
storm -related deaths are the result of traffic accidents. The NCEI has not recorded any ice storms in
Sherburne County.
Observing winter storm watches and warnings and adequate preparation can lessen the impact of
blizzard events in Minnesota. Technical advances made in transportation, including safer vehicles and
improved construction and maintenance of roads, have also contributed to the decline in deaths related
to blizzards. Historical estimates of dollar losses associated with blizzards were not available forthe
purposes of this analysis. However, costs incurred by state and local government for snow removal
associated with disaster declaration DR-1158 (January 1997) totaled over $27,3oo,000 dollars. Blizzards
rank 91h out of the io natural hazards economically impacting Minnesota according to the statewide risk
analysis. The chance that another winter storm affecting Sherburne County will occur is highly
probable.
Severe Winter Storm History in Sherburne County
The total of notable events defined as heavy snows, blizzards, ice storms, winter weather and winter
storms in Sherburne County recorded by the NCEI for the period from January 3.996 through July 203.9
is 64. An overview of some of the most notable winter storms since 2014 is provided in Error! Reference
source not found. below.
Table 25. Notable Winter Weather Events in Sherburne County. 2014-lulu 2019
" Sleet, snow and drizzle occurred across the
4/io/2oi9
Winter Unknown
o
o county, with snowfall totals averaging 6-8
Storm
inches.
Rain, sleet and snow fell across the county for
31912019
Storm Winter Unknown
o
o several hours, before changing to snow only.
Snowfall totaled 6-9 inches.
o
o
Up to 9 inches of snow fell, with snowfall
2/20/201.9
Winter Unknown
Storm
rates of up to s inch per hour at times.
2/7/201.9
Heavy Unknown
o
o
Up to 9 inches of snow were reported in
Snow
Sherburne County.
Heavy precipitation brought sleet, snow and
4/�3/2O1$
Winter
Unknown
o
o
thunder to Sherburne County. The storm
Storm
lasted several days, with snowfalls totaling 6-
13 inches.
2/24/2oi.8
Winter Unknown
o
o Between 6-9 inches of snow were reported
Storm
across Sherburne County.
In the northwestern side of the county there
ii/io/2oi4
Winter Unknown
o
o was between 12-1.7 inches of snow, while in
Storm
i
the southeastern area there was 8-1.2 inches.
Winter
Portions of the county received up to i8
4/i6/2oi4
Storm Unknown
o
o inches of snow in an April storm.
o
[2/20/201.4
Winter Unknown
o Eleven inches of snow fell near Elk River.
Storm
Source: NCEI
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Sherburne County Multi -Hazard Mitigation Plan, 2020
To determine the probability of future winter storm events in Sherburne County, all past -observed
winter -related storm events (i.e. blizzard, heavy snow, ice storm, lake -effect snow, sleet, winter storm,
and winter weather) and the period in which they occurred are examined. Based on the records in the
NCEI Storm Events Database, the relative frequency of winter -related storm events in the County is 2.7
events per year. This relative frequency can be used to inferthe probability of these events occurring in
the future.
Severe Winter Storms and Climate Change
Historically, winter storms have had a large impact on public safety in Minnesota. This will continue,
with a possible increase in snowstorm frequency and annual total snowfall. Winter weather is often a
cause of power outages. Pressures on energy use, reduced reliability of services, potential outages and
the potential rise in household costs for energy are major climate change risks to public health.
According to the 2015 Minnesota Weather Almanac, a recent study of seasonal snowfall records across
the state from 1.890-2000 showed that 41 of 46 climate stations recorded an increase in average annual
snowfall, by as much as io inches. Higher snowfall levels can result in greater runoff potential during
spring snowmelt, and many watersheds in Minnesota have shown more consistent measures of high -
volume flows during spring, often at or above flood stage (Seeley M. , 203.5).
Severe Winter Storms and Electrical Outages
The leading cause of electric outages in Minnesota during 2oo8 to 203.3 was weather/falling trees.
Between 2oo8 and 203.3, the greatest number of electric outages in Minnesota occurred during the
month of March (U.S. Department of Energy, 203-5).
Vulnerability
The number of heavy snowfall years forthe Midwest has fluctuated between igoo and 2oo6. The
periods of 1900-3.92o and 3.96o-3.985 had numerous years with snowfall totals over the gosh percentile.
In the past three decades, the number of heavy seasonal snowfall totals has been much lower. Despite
these generally lower seasonal snowfall totals, some areas of the Midwest have still experienced
significant snow totals in the most recent decade. The ioo-year lineartrends based on decadal values
show that the upper Midwest had statistically significant (i% level) upward lineartrends in snowstorm
frequency from 1901 to 2000 (Kunkel, et al., 2013).
Winter storms affect Sherburne County each year, so there is a i00% probability that the county and its
jurisdictions will be affected annually. The amount of snow and ice, number of blizzard conditions, and
days of sub -zero temperatures each year are unpredictable and within Sherburne County the
vulnerability ofjurisdictionsto winter storms does not vary geographically. Citizens living in climates
such as these must always be prepared for situations that put their lives or property at risk. It is not
always the size of the storm or the depth of the cold, but an unprepared individual with a vehicle
breakdown or lack of a personal winter safety kit that are at risk. Rural citizens are more vulnerable to
issues with deep snow.
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Sherburne County Multi -Hazard Mitigation Plan, 2020
Sherburne County Emergency Management identified that there are existing program gaps and
deficiencies that make its citizens more vulnerable to severe winter storms and should be addressed
with new mitigation efforts to reduce vulnerability. They include:
Communications —Not all Sherburne County residents are signed up fort he Code RED system or have
NOAA weather radios. Some people follow the Sherburne County Sheriff's Office Facebook account to
receive important messages, but not everyone uses social media. Continued public education needs to
be done to encourage people to utilize these resources.
Backup Power— Not all county and city facilities have backup power in the event of a severe winter
storm that takes out power.
4.3.7 Extreme Cold
Winter in Sherburne County can be severe, and especially dangerous for disabled citizens and outdoor
workers. Record temperature lows and arctic -like wind chills can cause cold -related illnesses such as
frostbite and hypothermia, which can be deadly. Hypothermia is the greatest and most life -threatening
cold weather danger.
In Sherburne County, cold winter weather can have severe or fatal impacts. Hypothermia occurs when
the core body temperature drops below g6°F. Anyone who is exposed to severe cold without enough
protection can develop hypothermia. Frostbite occurs when skin tissue and blood vessels are damaged
from exposure to temperatures below 32°F. It most commonly affects the toes, fingers, earlobes, chin,
cheeks, nose, and other body parts that are often left uncovered in cold temperatures. The NWS issues
"Extreme cold" warnings when it feels like -3o°F or colder across a wide area for several hours. Extreme
cold watches are issued a day or two before the conditions are expected.
The Wind Chill Index is a calculation that can be made with wind speed to communicate the dangers to
bare skin from winter winds and freezing temperatures. The NWS has produced a chart to simplify this
calculation. The classification zones are delineated in terms of time to frostbite on bare skin and are due
to the lowering of body temperature due to the passing -flow of lower -temperature air. Criteria for
issuing official NWS wind chill warnings are set locally.
Medical costs related to extreme heat and cold can be enormous: in 2005 the total was $1.5 billion
nationwide, or more than s3.6,000 per patient (Union of Concerned Scientists, 2009).
Below zero temperatures occur almost every winter in Minnesota. January is the coldest month, with
daytime highs averaging 2o1F and nighttime lows averaging 2°F. However, these averages do not tell
the whole story. Maximum temperatures in January have been as high as 63.°F and minimums as low as
36°F below zero.
Extreme cold temperatures affect the county nearly every year. Extremely cold air settled over
Minnesota on January 3ist of 3.996, and remained entrenched through February 41n A new record low
temperature for Minnesota was set in the town of Tower on February 2, 3.996, at -6o°F. Numerous
record low temperatures were set during the period at St. Cloud, Rochester and the Twin Cities.
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Sherburne County Multi -Hazard Mitigation Plan, 2020
Minneapolis/St. Paul set three new record low temperatures as well as recording the end coldest day on
record on February 2,1996. A mean temperature of -25°F was measured that day with a high of -170F
and a low of -320F in the Twin Cities. This was within two degrees of tying the all-time record low
temperature set in the Twin Cities and the coldest temperature recorded this century. Many central and
southern Minnesota locations set new record low temperatures the morning of the end. The Governor
closed all schools that day.
In February of 203.4, nearly all of Minnesota was between 10-150F colder than normal (i98i-2010
period) (High Plains Regional Climate Center, 203-4). The winter of 203.3-2014 was the sixth coldest on
record in Minnesota (The Weather Channel, 2014), with schools in the Twin Cities canceling five times
in January due to dangerous wind chills. It was the coldest winter in the Twin Cities in 35 years, with an
average temperature for December -February of 9.70F (MN DNR, 2014). Many areas in the state also
experienced higherthan average precipitation through the winter and spring months.
Extreme Cold History in Sherburne County
January is the coldest month on average in Sherburne County, with an average monthly minimum
temperature of o°F (based on data from 3.895-203.8). The coldest month on record for the county was
January 3.93.2, with a month -long average minimum temperature of -i6°F (MN DNR, n.d.).
The National Centers for Environmental information (NCEI) Storm Events Database has recorded a
total of 3.7 cold -weather events since 3.996: nine extreme cold/wind chill events and eight cold/wind chill
events. These 17 events occurred in eight of the 23.6 years on record. No deaths or injuries were
reported. The most recent record was from January of 203.9, when various weather sources in
Sherburne County measured wind chill values below -350F. The St. Cloud Airport recorded a wind chill
Of -590F.
In December of 2017 wind chill values of -4o0F were recorded over a two-day period.
Wind chill values dropped below -350F in December of 2oi6. At sunrise a few locations in the county in
open areas reached -450F. Earlier that year, in January, wind chill values of -350F were recorded over the
span of a few hours.
To determine the probability of future cold and extreme cold events in Sherburne County, all past -
observed events and the period in which they occurred were examined. Based on the records in the
NCEI Storm Events Database, the relative frequency of cold and extreme cold events in the County is .7
events per year. This relative frequency can be used to inferthe probability of these events occurring in
the future.
Extreme Cold and Climate Change
Although climate research indicatesthat Minnesota's average winter lows are rising rapidly, and our
coldest days of winter are now warmerthan we have ever recorded (NCEI, 2o3.8), cold temperatures
have always been a part of Minnesota's climate and extreme cold events will continue. An increase in
extreme precipitation or storm events such as ice storms as the climate changes could lead to a higher
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Sherburne County Multi -Hazard Mitigation Plan, 2020
risk of residents being exposed to cold temperatures during power outages or other storm -related
hazards during extreme cold.
Vulnerability
Extreme cold temperatures affect the county nearly every year. The amount of snow and ice, number of
blizzard conditions, and days of sub -zero temperatures each year are unpredictable.
Within Sherburne County the risk of extreme cold does not vary geographically. Citizens living in
climates such as these must always be prepared for situations that put their lives or property at risk. It is
not always the depth of the cold, but an unprepared individual with a vehicle breakdown or lack of a
personal winter safety kit that are at risk. Rural citizens not connected to city gas lines are more
vulnerable to issues with extreme cold.
Sherburne County Emergency Management identified that there are existing program gaps and
deficiencies that make its citizens more vulnerable to extreme cold and should be addressed with new
mitigation efforts to reduce vulnerability. They include:
Mass Care Shelter Facilities — Sherburne County needs to work with local communities and the
American Red Cross to increase the number of facilities that can serve as mass care sheltering facilities.
Generators for Backup Power— Not all of our designated shelter facilities have generator backup power
to provide heat if there is a loss of power.
4.3.8 Extreme Heat
Extreme heat is the combination of very high temperatures and exceptionally humid conditions. When
the atmospheric moisture content is high, the rate of perspiration from the body decreases and the
human body feels warmer. Heat stress can be indexed by combining the effects of temperature and
humidity. The National Weather Service's (NWS) Heat Index (Figure 3.8) is a measure of how hot the
body feels when relative humidity is factored in with actual airtemperature. The heat index values are
for shady locations - exposure to direct sunlight may increase these values by up to i5°F. The NWS will
initiate alert procedures when the Heat Index is expected to exceed 3.05°-3.3.o°F for at least two
consecutive days (n.d.).
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Sherburne County Multi -Hazard Mitigation Plan, 2020
rz ure iu. lvvv� meat inaex
NWS Heat Index
Temperature (OF)
80
82
84
86
88
90
92
94
96
98
100
102 104 106 108 110
40
80
81
83
85
88
91
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97
101
105
109
114 119 124
45
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84
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96
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114
119 124
p
50
81
83
85
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108
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118
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55
81
84
86
89
93
97
101
106
112
117
124
a
60
82
84
88
91
95
100
105
110
116
123
E
65
82
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89
93
98
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=
70
83
86
90
95
100
105
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75
84
88
92
97
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ro
80
84
89
94
100
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CC
85
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110
117
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122
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1100187
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103
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Likelihood
of Heat Disorders
with
Prolonged Exposure or Strenuous Activity
cauhc'r
® E :irerr
e
,..:. ....
❑ uarge'
. ExtffrTle E;ar': e,
Source: (National Weather Service, n.d.)
Figure sg describes the effects increasing levels of heat has on the body during prolonged exposure
and/or physical activity.
Figure 19. Heat Effects on the Body
CaLltlorl 80`F - Fatigrie possible with prolonged exposure anchor physical activity
90"F
Extreme 90`F - Heat stroke. heat cramps, or heat exhaustion possible with prolonged
Caution 103`F exposure andlor physical activity
Danger 103`F - Heat cramps or heat exhaustion likely, and heat strDke possible with
124`F prolonged exposure andlor physical activity
Extreme 125'F or Heatstroke ltlgh i e
Danger higher
Source: (National Weather Service - Amarillo, TX, n.d.)
Extreme heat events are linked to a range of illnesses, even death, and can exacerbate pre-existing
chronic conditions such as cardiovascular, respiratory, liver, and neurological diseases, endocrine
disorders, and renal disease or failure. Populations who are most vulnerable to extreme heat include
persons over 65 or under five years old; living alone, without air-conditioning, or residing on the
topmost floor of a building,- and with an income at or below the poverty line. People who are exposed to
heat because of recreational orjob-related activities are also more vulnerable, including athletes,
construction workers, and landscape/agricultural workers (Adapting to Climate Change in Minnesota:
2013 Report of the Interagency Climate Adaptation Team, 2013).
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Sherburne County Multi -Hazard Mitigation Plan, 2020
Medical costs related to extreme heat and cold can be enormous: in 2005 the total was $1.5 billion
nationwide, or more than si6,000 per patient (Union of Concerned Scientists, 2009).
Extreme Heat History in Sherburne County
July is the hottest month on average in Sherburne County, with an average monthly maximum
temperature of 82°F (based on data from i895-2oi8). The hottest month on record for the county was
July 3.936, with a month -long average maximum temperature of 93°F (MN DNR, n.d.).
The National Centers for Environmental Information's Storm Events Database records "Heat" and
"Excessive Heat" events. A "Heat" event results from a combination of above normal high temperatures
and relative humidity, while an "Excessive Heat" event is characterized by well above normal high
temperatures and high humidity. These heat -related events are reported whenever heat index values
meet or exceed locally/regionally established heat thresholds (2oi8).
From January 3.996 through July of 2019 the Storm Events Database recorded eight heat -related events
in Sherburne County, six "Heat" and two "Excessive Heat". No deaths or injuries were reported from
these events.
Only one event was reported since 2012. In July of 2oi6 there was severe heat throughout Sherburne
County and the surrounding area. The highest measured heat index in the county was i3YF.
To determine the probability of future heat -related events in Sherburne County, all past -observed
"heat" and "excessive heat" events and the period in which they occurred were examined. Based on the
records in the NCEI Storm Events Database, the relative frequency of heat -related events in the County
is .3 events per year. This relative frequency can be used to inferthe probability of these events
occurring in the future.
Extreme Heat and Climate Change
Minnesota's average temperature has increased more than 1.5°F since recordkeeping began in 3.895,
with increased warming happening in recent decades (International Climate Adaptation Team, 20i3).
Annual temperatures in the Midwest have generally been well above the 3.9o3.-3.96o average since the
late 3.99os, with the decade of the 2000s being the warmest on record (Kunkel, et al., 2013). Seven of
Minnesota's io warmest years occurred in the last 15 years. Projected increases are 2°F to 6°F more by
205o and 5°Fto io°F by 23.00 (MN Environmental Quality Board, 2014). The Midwest has experienced
major heat waves and their frequency has increased over the last six decades (Perera, et al., 2012). For
the U.S., mortality increases 4% during heat waves compared with non -heat wave days (Anderson &
Bell, 2011). During July 2011, 3.32 million people across the U.S. were under a heat alert — and on July 20
the majority of the Midwest experienced temperatures in excess of ioo°F. Heat stress is projected to
increase as a result of climbing summer temperatures and humidity (Schoof, 2012). On July 19, 2011,
Moorhead Minnesota set a new state record for the hottest heat index ever, at 3.340F. That same day,
Moorhead also recorded a new state record for the highest dew point at 88. It was the hottest, most
humid spot on the planet that day (Douglas, 2011).
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Sherburne County Multi -Hazard Mitigation Plan, 2020
Recent statistics from NOAA show that there are more human fatalities each year due to heat waves
than from floods, lightning, tornadoes and winter storms. Many cities have responded by creating Heat
Wave Response Plans to ensure that those in marginal health without air conditioning can obtain the
relief and care they need, and the Minnesota Department of Health developed the Extreme Heat
Toolkit to help educate at -risk populations on how to reduce risks associated with heat waves (Seeley
M. , 2015).
Increasing temperatures impacts Minnesota's agricultural industry. Agriculture is highly dependent on
specific climate conditions. As a result of increasing temperature, crop production areas may shift to
new regions of the state where the temperature range for growth and yield of those crops is optimal.
According to the National Climate Assessment, the Midwest growing season has lengthened by almost
two weeks since 195o due in large part to earliertiming of the last spring freeze. This trend is expected
to continue. While a longer growing season may increase total crop production, other climate changes,
such as increased crop losses and soil erosion from more frequent and intense storms, and increases in
pests and invasive species, could outweigh this benefit. There may also be higher livestock losses
during periods of extreme heat and humidity. Losses of livestock from extreme heat lead to a challenge
in the disposal of animal carcasses. Currently there are only two rendering facilities in Minnesota
available for livestock disposal. If a rendering facility is not available, lost livestock must be composted
on an impervious surface. If losses are high, finding an impervious surface large enough is a challenge.
In an attempt to adapt to increased temperatures, livestock areas in Minnesota may shift farther north.
As a result of new livestock areas and the resulting manure production, farmers may transition to
manure -based fertilizer applications in areas where traditionally only commercial fertilizers have been
used, with accompanying environmental advantages and disadvantages (Adapting to Climate Change
in Minnesota: 2o3.3 Report of the Interagency Climate Adaptation Team, 2013). In orderto minimize the
detrimental effects of heat stress on animal metabolism and weight gain, Minnesota farmers have also
begun redesigning and retrofitting dairy, hog, and poultry barns with better watering, feeding, and
ventilation systems (Seeley M. , 2015).
Vulnerability
Within Sherburne County the risk of extreme heat does not vary geographically other than possible
minor urban heat island effects in built-up areas; however, the impact extreme heat has on individuals
is not equal. According to the Center for Disease Control and Prevention (CDC), population groups
more vulnerable to extreme heat include:
• Older adults (>_65 years old). The elderly are not able to easily adjust to sudden changes in
temperature and more likely to have a chronic medical condition, ortake medication affecting
their body's ability to control its temperature.
Infants and children. Young children and infants have limited control with their surroundings
and rely on others to keep them cool and hydrated.
• Individuals with chronic health conditions. These individuals are less likely to respond to
changes in temperature, may be taking a medication which exacerbates the effects of extreme
heat, or have a condition which is a risk -factor for heat -related illness (e.g. heart disease,
mental illness, poor blood circulation, and obesity).
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Sherburne County Multi -Hazard Mitigation Plan, 2020
• People with low income. These individuals may not be able to afford to properly cool their
home and may face transportation challenges when trying to access cooling shelters.
• Athletes and people working outdoors. Both groups are likely to exert energy while being
exposed to the heat (CDC, 203.9).
Many of the population groups vulnerable to extreme heat are included as social variables in the CDC's
SVI data, specifically in the Socioeconomic Status, and Household Composition & Disability themes.
These SVI maps, displayed in section 3.6.1., can be a reference to identify the census tracts within the
county with residents who may be more susceptible to the risk of extreme heat.
Sherburne County Emergency Management identified that there are existing program gaps and
deficiencies that make its citizens more vulnerable to extreme heat and should be addressed with new
mitigation efforts to reduce vulnerability. They include:
Mass Care Shelter Facilities — Sherburne County needs to work with local communities and the
American Red Cross to increase the number of facilities that can serve as mass care sheltering facilities.
Generators for Backup Power to Shelter Facilities — Not all of our designated shelter facilities have
generator backup power to provide cooling if there is a loss of power.
4.3.9 Drought
Within the broad domain of natural hazards that comprise disaster science, drought is unequivocally
the most difficult to define. This is primarily due to its insidious nature, and because the parameters
that typically control it vary both spatially and temporally. For instance, the hydro -meteorological
conditions that constitute drought in one location, may not necessarily qualify as drought in a
contrasting climate. Even in regions that share a statistically similar climate, other factors such as soil
type, antecedent moisture conditions, ground cover and topography all play a vital role in dictating
drought emergence. To further complicate matters, drought is associated with a diverse number of
climatic and hydrological stressors, which come with a unique set of collective impacts that affect
nearly every corner of our economy and environment. Subsequently, there are over a hundred and fifty
different definitions of drought, notjust because it is difficult to define, but precisely on the grounds
that drought affects different regions in different ways (Fu, Svoboda, & Tang, 203.3). When one
attempts to merge and understand these various definitions and impacts, it is evident that drought can
be integrated into five principal categories. These include: meteorological, agricultural, hydrological,
ecological and socio-economic drought (Figure 20).
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Sherburne County Multi -Hazard Mitigation Plan, 2020
Figure 20. Seauence of drought occurrence and imvacts for commonly accevted c
Natural Climate Variability
Pracrpiialion deficiency H-gh temperature, high winds. low
i:amou4nt.. intensity, timing] relatlye humidity, greater
R
surishIne, leas cl6ud cover
V _
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f7 CA
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o v
deep percolation, and Increased evaporataon
WO
ground water recharge and transpir
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i
- - - - - - - _ - - - - - - - - - - - - - - - - - - - -
- -
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soil water deficiency
ftl
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u 4�
biomass and yield
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m
reservoirs, lakes, and ponds;
reduced wettands,
7
wildltfs habitat
o fs
Econnmic Im L Svcia+l Imposts Envrrorrrrmerrta0 ifmpach
Source: (National Drought Mitigation Center, 2018)
xought types
Meteorological drought is qualified by any significant deficit of precipitation. Hydrological drought is
manifest in noticeably reduced river and stream flow and critically low groundwater tables. The term
agricultural drought indicates an extended dry period that results in crop stress and harvest reduction.
Socioeconomic drought refers to the situation that occurs when water shortages begin to affect people
and their lives. It associates economic goods with the elements of meteorological, agricultural and
hydrological drought. Many supplies of economic goods (e.g., water, food grains, and hydroelectric
power) are greatly dependent on the weather.
Quantifying Drought Conditions
There are numerous approaches to assessing drought conditions. The current gold standard for
accurate drought conditions in the United States is the United States Drought Monitor (USDM) Map.
Established by the National Drought Mitigation Center (NDMC) in iggg, the Drought Monitor is a
weekly map that depicts drought conditions in all 50 states and Puerto Rico. Each weekly map is
produced by a NDMC assigned author. Though drought map authors utilize a broad domain of
geospatial, climatic data and drought indices that cover every aspect of drought, perhaps their most
valuable resource is the input they receive each week from hundreds of drought experts throughout the
country. The drought monitor map is thus a collective synthesis of the best quantitative and the most
reliable qualitative information available (The National Drought Mitigation Center, 2oi8). Figure 21
displays an example map and statistics table prepared by the U.S. Drought Monitor for Minnesota on
November 20, 2012. In total, there are four drought categories: moderate (Di), severe (D2), extreme
(D3), and exceptional (D4). A fifth category, abnormally dry (Do) is used to depict areas that are
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Sherburne County Multi -Hazard Mitigation Plan, 2020
abnormally dry but not yet in drought. Abnormally dry conditions are indicative of the meteorological
circumstances that precede drought onset and those that are coming out of drought. Do is often
considered a bellwether of drought but it is also an accurate warning sign that crop growth may be
slowed and wildland fire risk may be elevated. Table 26 displays these drought categories along with
the potential impacts at each level.
Table 26. USDM
Going into drought:
•
Short-term dryness slowing planting, growth of crops
Do Abnormally Dry
or pastures
Coming out of drought:
•
Some lingering water deficits
•
Pastures or crops not fully recovered
•
Some damage to crops, pastures
Di Moderate Drought
•
Streams, reservoirs, or wells low, some water
shortages developing or imminent
•
Voluntary water -use restrictions requested
•
Crop or pasture losses likely
D2 Severe Drought
•
Water shortages common
•
Water restrictions imposed
Extreme Drought
•
Major crop/pasture losses
•
Widespread water shortages or restrictions
•
Exceptional and widespread crop/pasture losses
Exceptional Drought
•
Shortages of water in reservoirs, streams, and wells
creating water emergencies
Source: (USDM, n. d.)
The decision to declare or alter a drought category in a given location is dependent upon a
comprehensive set of climate products that are specifically manufactured to quantify drought. Many of
these products are referred to as drought indices. These indices each serve a specific purpose. There are
indices that are designed for measuring short-term drought, and there are indices that are built to
reflect long-term drought. Similarly, other indices are useful for sector specific areas such as water
resources or agriculture.
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Sherburne County Multi -Hazard Mitigation Plan, 2020
z1. u.b. L)rougnt lvionitor for lvimnesota, lvovemeer zu, 2ul/
US, Dftu9 t Mon ltor
Minnesota
Source: (National Drought Mitigation Center, 2018)
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Drought History in Sherburne County
Sherburne County experienced a number of droughts over the years, the most recent occurring in the
spring of 203.5. Table 27 lists some of the notable droughts which impacted the county.
Table 27. DrouQhts ImvaetinQ Sherburne
In mid -September the entire county was in a moderate drought (DI.). A month later about 60% of
9/201.2 — the county was in a severe drought (D2) and the remaining 40% in an extreme drought (D3). The
5/201.3 entire county remained in >_D2 drought conditions until mid -April, and by the end of May no
portion of the county was in drought.
1.2/2011— In December, 3/4 of the county was in a moderate drought (Di.) and the other 1/ was abnormally
dry (Do). By the new year the entire county was in a moderate drought (Di) where it remained
5/2oi2 until early May 201.2.
USDA designated 24 counties as primary natural disaster areas because of drought that occurred
2007 in May 1., 2007. The Sherburne County Board of Commissioners declared a local disaster for
Sherburne County.
Established new "average low precipitation" and "average high temperature" records. Farmers
lost most, if not all, of the year's crop. Drought also affected power production, the forest
1.987-1.989 products industry, public water supplies and fish and wildlife dependent on adequate surface
water. Mississippi River flow levels threatened to drop below the Minneapolis Water Works intake
pipes.
Began in 1.974 in parts of south-central and western MN. Most severely affected areas were the
Otter Tail and Lac Qui Parle River basins. Dry conditions caused lower water levels in wells and
1976 1977 caused record low stream flows throughout the state. Late summer forest fires broke out and
conflicts arose between domestic well owners and neighboring high capacity well owners.
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Sherburne County Multi -Hazard Mitigation Plan, 2020
To determine the probability of future droughts in Sherburne County we look at past -observed
droughts. The USDM database was examined from January 2000—August 3.2, 2019 (1,023 weeks) for
any occurrence of drought in the county, regardless of the duration or severity of the drought.
According to the weekly reported data, the relative frequency of the county experiencing drought
conditions >_ Di is 3.2.8 weeks per year and the relative frequency of drought conditions >_ D2 is 3.2
weeks per year (National Drought Mitigation Center, 2o3.8). The relative frequency of past droughts can
be used to infer the probability of similar droughts occurring in the future.
In addition to highlighting specific notable droughts the USDM database was examined from January
2000 — August 12, 2019 (1,023 weeks) for any occurrence of drought in the county, regardless of the
duration or severity of the drought. According to the weekly reported data, the county experienced
drought conditions >_ D1 24% of the weeks and drought conditions >_ D2 6% of the weeks.
When comparing the two most recent five-year timeframes (203.4-2oi8 & 2oo9-2013), the data shows
either a decrease or no change in each drought category >_ Do. Table 28 shows the breakdown of this
comparison.
Table 28. Average Percent of Sherburne County's Lana Area by Drought Category
Timeframe No Drought
DO
Di D2
2009-2013
47.67%
23.32%
15.6iO/o 9.55% 3.84% 0%
2014-2018
84.90%
11.660/6
3.45% 00/0 00/0 0%
% Change
78.1%
-50%
-77.9% -100% -100% 0%
Drought and Climate Change
In 2007, 24 Minnesota counties received drought designation, while seven counties were declared flood
disasters; in 2012, 55 Minnesota counties received federal drought designation at the same time ii
counties declared flood emergencies (MN Environmental Quality Board, 203.4), and in May of 2015,
over go% of Minnesota was undergoing severe or moderate drought (MN DNR, 2015). Droughts have
been happening throughout Minnesota's history but it is not yet clear the degree at which climate
change may impact future droughts (International Climate Adaptation Team, 203.3). While there was no
apparent change in drought duration in the Midwest overthe past century (Dai, ZOii), the average
number of days without precipitation is projected to increase in the future (National Climate
Assessment Development Advisory Committee, 2013).
The climate models used in the 203.4 National Climate Assessment projects Minnesota to have an
increase in days over go°F by mid-century; however, the future drought situation is less clear. The
climate model run with the lower emissions scenario projects no significant change in the number of
consecutive days of no rain, while the higher emissions scenario show an increase in dry periods,
increasing Minnesota's drought risk (Minnesota Pollution Control Agency, 203-7). These climate models
are shown in Figure 22.
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Sherburne County Multi -Hazard Mitigation Plan, 2020
�-agure 22. rro)ectea unange in ivumver of uonseeutive
Projected Change In Number of Consecutive Dry Days f
Period 2041-2070 1 Lower Emissions 81
Ohe v... N—b .. �4 C ,x fr- Days $4, r—
Source: (ICAT, 2017)
in Low & tiign tmission scenarios
Change in Number of Consecutive Dry Days
Period- 2041 2070 1 Highaf Emissions: A2
6'
OW" M *A 9W 01 CW&WA M L7rya PW Yw
t 3 3 x
Even in areas where precipitation does not decrease, projected higher air temperatures will cause
increased surface evaporation and plant water loss, leading to drier soils. As soil dries out, a larger
proportion of the incoming heat from the sun goes into heating the soil and adjacent air rather than
evaporating its moisture, resulting in hotter summers under drier climatic conditions (Mueller &
Seneviratne, 2012).
Vulnerability
All jurisdictions in Sherburne County are vulnerable to drought, which has impacted the county
numerous times over the years.
The National Drought Mitigation Center (NDMC) oversees the Drought Impact Reporter (DIR) - a
comprehensive database which gathers drought -related reports from a variety of sources and identifies
the sector(s) being impacted by each drought. The NDMC (n.d.) defines a drought impact as "An
observable loss or change that occurred at a specific place and time because of drought." A drought
meeting this definition is categorized based on the sector(s) the drought impacts; therefore, a single
drought impacting multiple sectors will be categorized into each respective sector.
DIR records show 32 incidents of drought impacting at least one sector in Sherburne County from 3.976 -
2o18. Table 29 lists the number of times each sector was impacted by these droughts.
Table 29. Reported Drought Impacts for Sherburne County, 1976-2018
Agriculture
Business & Industry
Energy
Fire
Plants & Wildlife
Relief, Response &
Restrictions
5
o
o
4
4
14
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Sherburne County Multi -Hazard Mitigation Plan, 2020
Society & Public Health
Tourism & Recreation
Water Supply & Quality io
Source: (National Drought Mitigation Center)
Note: For additional information about each category/sector, visit:
https.Ildroughtreporter.unl.edu/help/dir/mapping.aspx
Since droughts are regional in nature, jurisdictions within Sherburne County do not vary in their
vulnerability to drought; however, jurisdictions with a greater number of vulnerable residents maybe
more negatively impacted. For example, droughts can contribute to poor air quality by increasing the
risk of wildland fires and creating a dustier than normal environment. Populations vulnerable to these
conditions include children, older adults, and those with respiratory issues. The Household Composition
& Disability SVI theme map (section 3.6.1.) is made up of these population groups and should be
reviewed to better understand the vulnerability of each jurisdiction.
Education and Awareness programs were identified as gaps or deficiencies related to drought.
4.3•10 Wi(dland fire
A wildland fire is an uncontrolled fire spreading through vegetative fuels, posing danger and
destruction to property. Wildland fires, also known as wildfires, can occur in undeveloped areas and
spread to urban areas where structures and other human developments are more concentrated. While
some wildland fires start by natural causes like lightning, humans cause four out of every five wildland
fires. Debris burns, arson or carelessness are the leading causes of wildfires. As a natural hazard, a
wildfire is often the direct result of a lightning strike that may destroy personal property and public land
areas, especially on national and state forestlands. The dangers from wildfire include the destruction of
timber, property and wildlife, and injury or loss of life to people living in the affected area or using the
area for recreational facilities.
While wildfires are often viewed in a negative light, they are a naturally occurring part of the
environment. Wildfires are an important component of healthy forest and prairie ecology, and can be
beneficial by reducing dangerously high fuel levels and putting nutrients into the ground that spur new
growth. In addition, many flora species require fire for seed germination. However, as people settled
this country and began clearing land and building homes, roads, railroads, and campgrounds, new
artificial causes of wildfire emerged and their frequency and level of destruction increased.
Causes of wildfires vary from state to state. For example, in Florida, lightning ignites approximately half
of all wildfires, while in Minnesota lightning causes less than 5%of all wildfires. These variations are due
to climate, vegetation, topography and weather. People burning debris cause most wildfires in
Minnesota. However, wildfires are also caused by vehicle exhaust, sparks from trains and heavy
equipment, camping, smoking and lightning.
Topography affects the movement of air and fire over the ground surface. The slope and shape of
terrain can change the rate of speed at which the fire travels. Weather affects the probability of wildfire
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Sherburne County Multi -Hazard Mitigation Plan, 2020
and has a significant effect on its behavior. Temperature, humidity and wind affect the severity and
duration of wildfires.
Homes threatened by wildfire are primarily those located in the "wildland-urban interface." This is the
zone where homes and subdivisions have been located in wildland areas where natural wildfires can
have an impact. While wildfires are necessary for healthy ecosystems, they burn whatever fuel is in
their path, whether vegetation or buildings.
Because the severity of a wildfire directly impacts soil productivity and the vegetative recovery
timeframe, the USDA Natural Resources Conservation Service (NRCS) classifies wildfires by burn
severity to estimate soil heating and the severity of root damage. Wildfires are classified into one of
three classifications based on post -fire vegetative and soil condition indicators. The most severe fires
result in greatly reduced soil productivity, slow vegetative recovery (5-3.0 years) and great potential for
soil erosion. Severe burning wildfires typically occurs in areas with steep north or east slopes and dense
timber. On the opposite spectrum, the vegetation of an area impacted by a low -severity fire is likely to
recover naturally, with regrow occurring within a year. Low -severity wildfires primarily occur on
grasslands (USDA NRCS, n.d.).
One of the most common causes of a home being damaged or destroyed is due to radiant heat. In a
wildfire, radiant heat is the heat given off by burning vegetation. The high temperatures of some
wildfires can cause the deck, siding, or roof of a home to ignite, because the fire was too nearthe home.
Studies in western wildfires have shown that approximately 85% of homes surviving a major wildfire
had 30-50 feet of defensible space around them, coupled with fire-resistant roofing.
Approximately i,600 wildfires occurred each year in Minnesota on average from 3.976-2011 (MN DNR,
2011). Wildfires occurthroughout the spring, summer and fall, however, most wildfires in Minnesota
take place in March, April, and May. During this period, much of the existing vegetation has been killed
due to winter temperatures and is dead, brown and combustible. Also, there is little green vegetation to
serve as a barrier for a moving wildfire.
Wildland fire History in Sherburne County
The Minnesota DNR responded to i,6i9 wildfires in Sherburne County from January 1985 throughJuly
25, 203.9, most being human caused, burning 8,964 acres (Figure 23). These include fires not only on
state lands, but also rural private lands for which there is not another agency with primary
responsibility. Wildfires that are not included in this data are those that occur on federal lands and
those that are responded to by local fire departments. The largest wildfire in Sherburne County burned
2,50o acres in April of 1.996, northwest of Zimmerman. In April of 3.99o, a fire occurred west of
Zimmerman, burning 688 acres.
The most recent fire that burned more than ten acres in the county occurred in April of 2o3.8, burning 54
acres in the northwestern corner of the county. Its cause was arson.
Only 20 wildfires in this dataset were ignited by natural causes (lightning), burning a total of nine acres.
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Sherburne County Multi -Hazard Mitigation Plan, 2020
According to MN DNR data, there are 23,418 acres of peat in Sherburne County. Peat is partially
decayed plant matter found in ancient bogs and swamps. Minnesota has approximately six million
acres of peatland, the highest total acreage in the contiguous United States. Peat fires are deep-rooted
fires that burn underground, lasting for weeks, months, or even years. They can smolder during winter
months beneath the snow, surfacing again in the spring to burn above ground. Peat ignites when its
moisture content is low, and then it supports combustion rather than flame. Once started, combustion
is persistent because peat contains oxygen and needs little or no outside oxygen to continue burning.
Peat's insulating qualities mean the fire loses little heat. As the peat dries, it becomes water repellent.
These factors result in long-lasting fires that require extensive operations to extinguish. However, peat
fires have not been an issue in Sherburne County.
To determine the probability of future wildfire events in Sherburne County, all past -observed wildfire
events and the period in which they occurred were examined. Based on Minnesota DNR records from
January 1985 through July 25, 2019, the relative frequency of wildfire events in the County is 47 events
per year. This relative frequency can be used to inferthe probability of these events occurring in the
future.
Wildland fire and Climate Change
Temperatures are predicted to rise in the state, which could lead to more extreme heat events and
associated wildland fire risks. As Minnesota's climate changes, weather fluctuations between drought
and extreme rain events and increasing temperatures will result in changes to forest composition
and/or distribution. These fluctuations can lead to dry conditions that may cause increased fire risk in
both grassland and forest environments.
Vulnerability
Wildland fires occur frequently in Sherburne County, with larger ones tending to happen within the
Sherburne National Wildlife Refuge.
Some residents are more vulnerable to air quality conditions of wildland fire and those include children,
older adults, and those with respiratory issues. The Household Composition & Disability SVI theme map
(section 3.6.3.) is made up of these population groups and should be reviewed to better understand the
vulnerability of each jurisdiction.
The SILVIS Lab at University of Wisconsin — Madison created a nationwide dataset documenting the
203.0 Wildland Urban Interface. With the increase of development in metropolitan fringes and rural
areas, the wildland-urban interface (WUI) is increasing. The WUI is defined as the area where structures
and other human development meet or intermingle with undeveloped wildland. The expansion of the
WUI in recent decades has significant implications for wildfire management and impact. The WUI
creates an environment in which fire can readily move between structural and vegetation fuels. Its
expansion has increased the likelihood that wildfires will threaten structures and people.
There are two types of WUI: intermix and interface. Intermix WUI are areas where housing and
vegetation intermingle; interface WUI are areas with housing in the vicinity of contiguous wildland
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Sherburne County Multi -Hazard Mitigation Plan, 2020
vegetation. Figure 24 below maps the WUI in Sherburne County. Areas of interface and intermix values
are primarily located in the areas surrounding the Sherburne National Wildlife Refuge.
Figure 23. Wildfires by Acres Burned (1985-July 2019) and Peat Soil Area in Sherburne County
• 4e ' ; • • a k s
• •Zie
• • •.,■
• ■ ■ ) d• ^4' • Y • is ■y, ■ • •
'`._. ' • a{23r L'�kP1� s _ i� • ■ s . ! + • • • s �!� s. �I • • 0
�, +} •� M •• • �.. a.. ■ i 'a ' of 41 • : • +� i1RlErrnni a..e
as
we
♦ • •■ . ■ •i • ■ t • • � i •.
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■ •• i• a �•. •■ fi ••1 ■ !
0 • •• • •♦ •I 5; ■ 0 �•
ae,=,qL,�k�\ • • • N Via• ••i
;• • • ' ■
Natwal causes Manmade Causes "' % • • ■ 1!• • i : • • } • • ' Ai
c S IS • = 25 • • 4■ • * ■ a Elk kirrr' a
0 25 - IOU ■ d5 • 100 a • a"�� • r '�
{� 100 - 200 1DO - 2DO
p 200.650 2DO - 650
0 6S0 - 2,50D 650 - ,500 •
Peat
DAa 5cource: MN CNR
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Sherburne County Multi -Hazard Mitigation Plan, 2020
Figure 24. Wildland Urban Interface in Sherburne
Enterfaze
Enternlx
ND I Im.-,iN
Very Low Densty dousing
MedfM/Kgh D&Wty Hues p
Low Hpusinq Density
_ Linknown
V'1';C'fe Itefucp
Rlidr'f)M F70M)
Sherburne County Emergency Management identified that there are existing program gaps and
deficiencies that make its citizens more vulnerable to wildland fire and should be addressed with new
mitigation efforts to reduce vulnerability. They include:
Database of Dry Hydrants/Well Access — The county needs to work with local fire departments to update
its database of the locations of dry hydrants and well access. Areas that are not covered by a municipal
water source should be evaluated for additional dry hydrant/well access projects.
4.3.11 Landslides and Soil Erosion
Erosion is the wearing away of land, such as the loss of a riverbank, beach, shoreline, or dune material.
It is measured as the rate of change in the position or displacement of a riverbank or shoreline over a
period of time. Short-term erosion typically results from periodic natural events, such as flooding,
hurricanes, storm surges and windstorms, but may be intensified by human activities. Long-term
erosion is a result of multi -year impacts such as repetitive flooding, wave action, sea level rise, sediment
loss, subsidence and climate change. Death and injury are not typically associated with erosion;
however, major incidents of erosion, such as landslides, can destroy buildings and infrastructure (FEMA,
2oi3).
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Sherburne County Multi -Hazard Mitigation Plan, 2020
The movement of a mass of rock, debris, or earth down a slope by the force of gravity is considered a
landslide. They occur when the slope or soil stability changes from stable to unstable, which may be
caused by earthquakes, storms, volcanic eruptions, erosion, fire, or additional human -induced
activities. Slopes greaterthan io degrees are more likely to slide, as are slopes where the height from
the top of the slope to its toe is greater than 40 feet. Slopes are also more likely to fail if vegetative
cover is low and/or soil water content is high. Potential impacts include environmental disturbance,
property and infrastructure damage, and injuries or fatalities (FEMA, 2013).
Landslides/Soil Erosion History in Sherburne County
The issue of wind and water induced erosion is not listed as a priority concern in Sherburne County's
2o3.8-2o3.8 Local Water Management Plan. While the County is concerned about erosion, especially
along lake and river shorelines, there have not been significant landslides or severe soil erosion issues in
the county in the past five years.
To determine the probability of future landslide events in the Sherburne County, all past -observed
landslide events and the period in which they occurred were examined. Because there are no reported
landslide events in the County, the relative frequency of these events is o per year. This relative
frequency can be used to infer that the probability of landslide events occurring in the future is very low
Landslides/Soil Erosion and Climate Change
The increased magnitude and frequency of flooding events and storm activity that may result from
climate change may in turn increase the risk of soil erosion and landslides. According to University of
Washington geologist Dave Montgomery, "If the climate changes in a way that we get a lot more
rainfall you would expect to see a lot more landslides" (Phillips, 203.4).
In Minnesota, the wettest days are getting wetter. This can contribute to increased erosion in many
locations due to flooding and saturation of soils. Reduced ice cover on lakes and shorelines (due to
warmer temperatures) could potentially expose shorelines to increased erosion or damage during
weather events when they previously may have been covered with ice (National Climate Assessment
Development Advisory Committee, 2013).
According to the 2014 National Climate Assessment, "Increased precipitation intensity also increases
erosion, damaging ecosystems and increasing delivery of sediment and subsequent loss of reservoir
storage capacity" (Pryor, et al., 2014).
Vulnerability
Human life and safety, structures, and infrastructure are all vulnerable to landslides. Identifying the
areas more susceptible to landsliding is challenging, especially at a large scale. The USGS has
performed an analysis for potential landslide of the conterminous US, and while highly generalized and
not intended to be used for local planning, still provides a general overview of landslide potential. The
delineation process is based on geologic formations of the US which were classified as having high,
medium, or low landslide incidence; and being of high, medium, or low susceptibility to landsliding
(Radbruch-Hall, et al., 3.982). Sherburne County is in a low incidence and susceptibility rated area.
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Sherburne County Multi -Hazard Mitigation Plan, 2020
No program gaps or deficiencies specifically related specifically to landslides were identified. Mitigation
measures related to flooding will also address landslides and soil erosion concerns in Sherburne County.
4.3•12 Dam & Levee Failure
Dams are structures that retain or detain water behind a large barrier. When full or partially full, the
difference in elevation between the water above the dam and below creates large amounts of potential
energy, allowing the chance for failure. Dams can fail due to either i) water heights or flows above the
capacity for which the structure was designed; or 2) deficiencies in the structure such that it cannot hold
back the potential energy of the water. If a dam fails, issues of primary concern include loss of human
life/injury, downstream property damage, lifeline disruption (transportation routes and utility lines
required to maintain or protect life), and environmental damage. Dams require constant monitoring
and regular maintenance to insure their integrity.
Dam & Levee Regulation
The agencies with regulatory authority of dams in Minnesota are:
• The MN DNR Dam Safety Program has the mission of protecting the life and safety of people
by ensuring that dams are safe. Minnesota's program sets minimum standards for dams and
regulates the design, construction, operation, repair, and removal of dams. Both privately and
publicly owned dams are regulated.
• The U.S. Army Corp of Engineers (USACE) maintains the lock and dam system on the
Mississippi River and has regulatory authority over the flood control dams that it owns. USACE
also participates with local communities in all phases of flood control that includes dams,
levees, or other means.
• The Federal Power Act (FPA) authorizes the Federal Energy Regulatory Commission (FERC) to
issue exemptions or licenses to construct, operate and maintain dams, water conduits,
reservoirs, and transmission lines to improve navigation and to develop power from streams
and other bodies of water over which it hasjurisdiction. 3.6 U.S.C. § 797(e). Regulatory tools
include the Federal Power Act, Public Utility Regulatory Policies Act, the Electric Consumers
Act of 1.986 and the Energy Policy Act of 3.992.
Dam & Levee Failure History in Sherburne County
According to the State Dam Safety Engineer at the MN DNR, there have not been any cases of dam
failure in Sherburne County.
To determine the probability of future dam or levee failures, all past -observed dam and levee failures in
the County and the period in which they occurred were examined. Because the County has zero
reported failures, the relative frequency of a dam or levee failure is o per year. This relative frequency
can be used to infer that the probability of a dam or levee failure occurring in the future is very low.
Dam & Levee Failure and Climate Change
Dams are designed based on assumptions about a river's annual flow behavior that will determine the
volume of water behind the dam and flowing through the dam at any one time. Changes in weather
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Sherburne County Multi -Hazard Mitigation Plan, 2020
patterns due to climate change may change the expected flow pattern. It is conceivable that bigger
rainfalls at earlier times in the year could threaten a dam's designed margin of safety, causing dam
operators to release greater volumes of water earlier in a storm cycle in order to maintain the required
margins of safety. Such early releases of increased volumes can increase flood potential downstream.
Climate change is adding a new level of uncertainty that needs to be considered with respect to
assumptions made during dam construction.
Vulnerability
Although dam regulatory authorities vary between various federal and state agencies, all authorities
attempt to classify dams according to the potential impacts from a dam failure or mis-operation. In
response to the numerous classification systems, FEMA's Interagency Committee on Dam Safety
created a hazard potential classification system that is adaptable to any agency's current system. Table
3o provides an overview of the main criteria agencies consider when determining a dam's hazard
potential classification. This classification system does not imply that the dam is unsafe, but rather
categorizes dams based on the probable loss of human life and the impacts on economic,
environmental, and lifeline interests (2004).
Table 30. Hazard Potential Classification Criteria
Low None expected Low and generally
limited to owner
Significant _ None expected Yes
Probable - one or Yes (but not
High more expected necessary forthis
classification)
Source: (US Army Corps of Engineers, 2008)
Minnesota's hazard classifications for dams are as follows:
• High (Class 1) - loss of life or potential serious hazards; damage to health, main highways, high -
value industrial or commercial properties, or major public utilities; or serious direct or indirect
economic loss to the public;
• Significant (Class 11) - possible health hazard or probable loss of high -value property; damage
to secondary highways, railroads or other public utilities; or limited direct or indirect economic
loss to the public otherthan that described in Class III (Low); and
• Low (Class III) - property losses restricted mainly to rural buildings and local county and
township roads that are an essential part of the rural transportation system serving the area
involved.
Class I dam owners are required to have an Emergency Action Plan (EAP) on file, notifying individuals
whose lives, property, or health may be endangered by failure, mis-operation, or other circumstances
affecting the dam (Minnesota Legislature - Office of the Revisor of Statutes, 2008).
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Sherburne County Multi -Hazard Mitigation Plan, 2020
Dams for which a hazard potential (as defined above) has not been designated, or is not provided, are
classified as "Undetermined". The St. Cloud is under the jurisdiction of the City of St. Cloud, and is not
addressed in this plan.
The EAP was reviewed for the Elk River (Orono) Dam, owned by the City of Elk River and operated by
Elk River Municipal Utilities. The dam impounds the Elk River, forming Orono Lake, a recreational
waterbody. The Main Street Bridge is located immediately downstream of the dam and could
potentially be affected by a dam failure, although waters are not expected to overtop the bridge. The
2oig EAP states there is one residence that could potentially be affected by the inundation due to dam
failure. A visual (non-GIS) review of the inundation map suggests that the inundation area is the same
or smallerthan the i% annual chance flood boundary of the Elk and Mississippi Rivers. The Elk River
flows into the Mississippi Rivera pproxi mate ly one mile downstream from the dam.
Sherburne County Multi -Hazard Mitigation Plan, 2020
Figure 25 below maps the dams in Sherburne County by hazard classification. Two of the dams are
classified as high hazard dams: the Elk River (Orono) Dam and the St. Cloud Dam. Both dams have their
own Emergency Action Plans (EAPs). The St. Cloud is under the jurisdiction of the City of St. Cloud, and
is not addressed in this plan.
The EAP was reviewed for the Elk River (Orono) Dam, owned by the City of Elk River and operated by
Elk River Municipal Utilities. The dam impounds the Elk River, forming Orono Lake, a recreational
waterbody. The Main Street Bridge is located immediately downstream of the dam and could
potentially be affected by a dam failure, although waters are not expected to overtop the bridge. The
2oig EAP states there is one residence that could potentially be affected by the inundation due to dam
failure. A visual (non-GIS) review of the inundation map suggests that the inundation area is the same
or smallerthan the i% annual chance flood boundary of the Elk and Mississippi Rivers. The Elk River
flows into the Mississippi River approximately one mile downstream from the dam.
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Sherburne County Multi -Hazard Mitigation Plan, 2020
Figure 25. Dams by Hazard Classification
N.
If-
K
Dam Hazard CiaMKaton {`, a B{I Lake
0 Hghpass 1) p; Rr„�� •
• Sgn/kaM (Class 11)
• Law (OM III)
! 11rt1rrta"
Ley" System
Lcvead Ara
Nahcnal Wildlife Rcfu-,4�•
Zr.nriefman
•
+ 4
Elk Rr.
Data Sources; MN DHR, NID, I/SACE
In addition to dams being classified by their hazard potential, the physical condition of dams is
inspected and given a condition ranking. The condition of a dam is categorized into one of the following
classifications:
• Satisfactory - No existing or potential dam safety deficiencies are recognized. Acceptable
performance is expected under all loading conditions (static, hydrologic, seismic) in accordance
with the applicable regulatory criteria ortolerable risk guidelines.
• Fair - No existing dam safety deficiencies are recognized for normal loading conditions. Rare or
extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in
the range to take further action.
• Poor - A dam safety deficiency is recognized for loading conditions which may realistically
occur. Remedial action is necessary. "Poor" may also be used when uncertainties exist as to
critical analysis parameters which identify a potential dam safety deficiency. Further
investigations and studies are necessary.
• Unsatisfactory - A dam safety deficiency is recognized that requires immediate or emergency
remedial action for problem resolution.
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Sherburne County Multi -Hazard Mitigation Plan, 2020
• Not Rated - The dam has not been inspected, is not understate jurisdiction, or has been
inspected but, for whatever reason, has not been rated (US Army Corps of Engineers, 2oo8).
Dams in "Poor" or "Unsatisfactory" condition are more vulnerable to failure and pose a greater threat to
the surrounding community and infrastructure. There are no dams in Sherburne County with
conditional assessments ranked as poor or unsatisfactory (Figure 26).
Figure 26. Condition of Dams
a l
V
Becker
•
i Tlf'ICTTr7 �.
•
r f r
Dam Capiditkii Ass lent k.,, eR .,-&q Lake.
�iililSfmCFOry a� ;; •
;s.
FaB Elk R,ti ,
Not Rated
Unknown +
Lessee Syuern
Leveed Area
NnlKXMI W-WhIr. €O&OW
09a Sources: MN MR, NIA, USACE
While there are no levees within the boundary of Sherburne County, there is a levee locatedjust south
of the town of Elk River on the Mississippi River. A total of .ii square miles are in the leveed area.
No program gaps or deficiencies specifically related to dams were identified.
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Sherburne County Multi -Hazard Mitigation Plan, 2020
Section 5 — Mitigation Strategy
The goal of mitigation is to protect lives and reduce the future impacts of hazards including property
damage, disruption to local and regional economies, the amount of public and private funds spent to
assist with recovery, and to build disaster -resistant communities. Mitigation actions and projects
should be based on a well -constructed risk assessment, provided in Section 4 of this plan. Mitigation
should be an ongoing process adapting over time to accommodate a community's needs.
J. �.ommunity Capability Assessments
The capability assessment identifies current activities and existing planning tools used to mitigate
hazards. The capability assessment identifies the policies, regulations, procedures, programs and
projects that contribute to the lessening of disaster damages. The assessment also provides an
evaluation of these capabilities to determine whetherthe activities can be improved in orderto more
effectively reduce the impact of future hazards. The following sections identify existing plans and
mitigation capabilities within all of the communities:
• AppendixJ: Lists the plans and programs in place in Sherburne County as related to hazard
mitigation.
• Appendix K. As part of the Sherburne County MHMP update, the county, its cities, and
townships were asked to participate in filling out a "Local Mitigation Survey" (LMS) form to
report on their current mitigation capabilities and program gaps. Appendix K lists the LMS
reports gathered for Sherburne County.
Information from the capability assessments was used to support development of local mitigation
actions for implementation over the next five years (See column J Comments on Implementation,
Administration & Integration into Local Planning Mechanisms).
5.i.1 National Flood Insurance Program (NFIP)
The NFIP is a federal program created by Congress to mitigate future flood losses nationwide through
sound, community -enforced building and zoning ordinances and to provide access to affordable,
federally -backed flood insurance protection for property owners. The NFIP is designed to provide an
insurance alternative to disaster assistance to meet the escalating costs of repairing damage to
buildings and their contents caused by floods. Participation in the NFIP is based on an agreement
between local communities and the federal government that states that if a community will adopt and
enforce a floodplain management ordinance to reduce future flood risks to new construction in Special
Flood Hazard Areas (SFHAs), the federal government will make flood insurance available within the
community as a financial protection against flood losses.
Table 33. below shows which jurisdictions in Sherburne County participate in the National Flood
Insurance Program (NFIP). All cities in the county have FEMA Mapped High Risk Areas and participate
in the NFIP.
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Sherburne County Multi -Hazard Mitigation Plan, 2020
Table 31. NFIP Participation in Sherburne County
Community Name
Becker
Participation
Participating in NFIP
in the NFIP?
FEMA Mapped High Risk Areas
Initial FIRM
Date
05/04/00
Becker Township
Participating in NFIP
FEMA Mapped High Risk Areas
ss/s6/ss
Big Lake
Participating in NFIP
FEMA Mapped High Risk Areas
05/04/00
Clear Lake
Participating in NFIP
FEMA Mapped High Risk Areas
05/04/00
Elk River
Participating in NFIP
FEMA Mapped High Risk Areas
05/02/77
Princeton
Participating in NFIP
FEMA Mapped High Risk Areas
05/1-0/74
Sherburne County
Participating in NFIP
FEMA Mapped High Risk Areas
00.9/81.
St. Cloud
Participating in NFIP
FEMA Mapped High Risk Areas
3.2/17/73
Zimmerman
Participating in NFIP
FEMA Mapped High Risk Areas
11. 16/11.
Source: MN DNR (data current as of zo/z/2os8)
Repetitive loss properties are defined as properties that have had two or more flood insurance claims of
$i,000 or more in any rolling so -year period. Property owners are asked to consider mitigation activities
such as acquisition, relocation, or elevation, among other options. FEMA's Repetitive Loss (RL)
properties strategy is to eliminate or reduce the damage to property and the disruption to life caused
by repeated flooding of the same properties. Property owners are notified of their status by FEMA.
Sherburne County has one repetitive loss property, as described in Table 32. It is a single-family
dwelling.
$Ti.6i
Source: MN DNR (data current as of3131/2o19)
No properties are classified as "Severe Repetitive Loss" (SRL). An SRL property is defined as a
residential property that is covered under an NFIP flood insurance policy and:
• That has at least four NFIP claim payments (including building and contents) over $5,000 each,
and the cumulative amount of such claims payments exceeds $20,000; or
• For which at least two separate claims payments (building payments only) have been made
with the cumulative amount of the building portion of such claims exceeding the market value
of the building.
• For both (a) and (b) above, at least two of the referenced claims must have occurred within any
so -year period, and must be greater than io days apart.
For more on the areas that flood repeatedly in Sherburne County, see Section 4.3.5 Flash Flood and
Riverine Flood.
5.1.2 Plans and Ordinances
Sherburne County and its incorporated communities have a number of plans and ordinances in place to
ensure the safety of residents and the effective operation of communities, including a Comprehensive/
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Sherburne County Multi -Hazard Mitigation Plan, 2020
Master Plan, Emergency Operations Plan, Continuity of Operations Plan, Stormwater Management
Plan, Transportation Plan and Floodplain Ordinance.
5.1.3 Plans and Programs in Place to address Natural Hazards
Sherburne County has numerous plans and programs in place to address natural hazards from warning
to response. Some of these programs are specific to a hazard and others address impacts and human
safety for many types of events. The natural hazard(s) the plan or program is most relevant to is
highlighted. Note: For the purpose of grouping related natural hazards, "Summer Storms"
encompasses Tornadoes, Windstorms, Lighting and Hail and "Winter Storms" encompasses Blizzards
and Ice Storms (see Section 4-3).
Summer Storms Winter Storms Floods Extreme Temps Wildfire
Emergency Operations Plan — Sherburne County maintains an all -hazards Emergency Operations Plan
which details key emergency management functions (i.e. public information and warning, evacuation,
mass care sheltering, etc.) that may be necessary in advance of, during and following hazard events
that pose risk to life safety. This includes events such as severe summer and winter storm events,
extreme temperatures, flooding and wildfire.
Summer Storms Winter Storms Floods Extreme Temps Dam Failure Wildfire
Public Warning and Notification — In the event of an emergency or hazardous condition that requires
timely and targeted communication to the public, Sherburne County utilizes the CodeRED emergency
notification system. The Sheriff's Office will use their Facebook page, as well as coordinate with local
news media to provide information to the public. The Sherburne County Public Safety Answering Point,
along with Emergency Services have developed a checklist to ensure that critical warning activity takes
place during severe weather events. Sherburne also maintains an effective relationship with the
National Weather Service in Minneapolis forthe relay, and dissemination of emergency weather
information.
Summer Storms Winter Storms ought Dam Failure
Backup Power— Sherburne County requires certain building codes to be in place to prevent fires in the
case of power outages. Additionally, certain facilities are required to store backup generators and fuel.
There are requirements for the placement of transmission lines, transformers, and power lines so as to
safeguard the community from long-term power outages.
Summer Storr Winter Storms Sxtreme Temps Drouqht r)am Failure
Winter Roads Maintenance — During the winter season Sherburne County public works is responsible for
snow plowing and ice treatments on county roads, and township roads. The Public Works Department
has snow plowing Standard Operating Procedures in place that can be accessed online forthe public to
read.
Summer Storms
Outdoor Warning Sirens — Sherburne owns 33. sirens located at various strategic points throughout the
county. Respectively, the cities of Elk River and Zimmerman along with the Xcel Energy Monticello
Nuclear Generating Plant (MNGP) own their own outdoor warning sirens located in their areas of
service. The Sherburne County Sheriff's Office maintains, services, tests, sounds, and administers all
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Sherburne County Multi -Hazard Mitigation Plan, 2020
operations of the county owned outdoor warning sirens. Although Elk River, Zimmerman and MNGP
service, maintain, and test their own sirens, the Sheriff's Office Communication Center is responsible
for sounding them and serving as the warning point. County guidelines on the use of warning sirens
include: Protection of Life- The sole purpose of outdoor warning sirens is forth protection of life. Public
Warning- In order to reduce public confusion, outdoor warning sirens should be sounded for public
warning purposes only. Take Shelter -The public should know that hearing an outdoor warning siren is a
call to take immediate life-saving action. The desired individual action is to take shelter and get
information. All Hazards- Outdoor Warning Sirens are not "Tornado Sirens." Sirens maybe used for all
types of hazards where emergency officials want people in a defined area to "get inside then get
information."
Summer Storms Winter Storms-xtreme Temps Drought 'yam (Failure
Severe Weather Awareness Weeks — Sherburne County helps promote and participates in the Minnesota
Department of Public Safety and the National Weather Service's "Severe Weather Awareness Week"
held in April each year and the "Winter Hazard Awareness Week" in November each year. Each week-
long event seeks to educate residents on the dangers of severe storms and highlights the importance of
preparing for severe weather before it strikes.
Summer Storms Floods
SKYWARN Program — On an annual basis Sherburne County works with the National Weather Service to
schedule and promote SKYWARN trainings with First Responders and the public. Information is put out
via the SC Sheriff's Office FB/Twitter page and local medial sources.
'inter Storm! Floods
National Flood Insurance Program — Sherburne County and all cities have FEMA mapped high -risk flood
areas and participate in the National Flood Insurance Program (NFIP).
Summer Storms Winter Storm, Floods Sxtreme Temps Drought Dam Failure
Sherburne County Floodplain Ordinance & Floodplain Maps — Sherburne County Planning and Zoning
Department maintains and enforces the county's floodplain ordinance. The goal of the floodplain
ordinance is to minimize the threat to life and property resulting from flooding. FEMA Floodplain maps
for Sherburne County are available for viewing on the County website.
Floods
Sherburne County Public Works 5-Year Capital Improvement Plan — Sherburne County Public Works
maintains a 5-year CIP (2o3.8-2022) for transportation infrastructure projects that include projects that
address flood mitigation (bridge replacements, culvert replacements, reconstruction and pavement
resurfacing). A map of the 2o3.8-2022 proposed projects is available on the county website.
Wildfire
Local Fire Departments —There are six fire departments located in Sherburne County. Each department
is responsible for wildfires within their department boundaries along with the Minnesota Department of
Natural Resources, however, they often work together on larger fires, including wildfires.
Summer Storms Winter Storm! Extreme Temps Drought Dam Failure Wildfire
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Sherburne County Multi -Hazard Mitigation Plan, 2020
Mutual Aid Agreements —All of the municipal fire departments in Sherburne County have mutual aid
agreements with each contiguous department that borders their respective fire district. Written mutual
aid agreements are on file with each city.
Summer Storms Winter Storm 'xtreme Temns Drought ')am Failure Wildfire
Burning Permits/Restrictions —The MN DNR regulates when burning permits are available and requires
permit holders to notify the county prior to burning.
Wildfire
Fire Prevention Week— Fire prevention week is held annually each October. Many fire departments
participate and provide an opportunity for local residents to learn fire safety with open houses or
present in the local schools to educate our youth. In addition, local media assist in sharing fire safety
information to the public during periods of high risk for wildfire.
Drought Wildfire
Drought/Wildfire PublicAwareness — In the event of drought conditions, Sherburne County Emergency
Services work together with the MN DNR and local fire departments to raise public awareness of the
dry conditions and increased danger of wildfire.
Summer Storms Winter Storm, �xtremeTemps Drought Dam Failure
MN Drought Response Plan — The State of Minnesota has a statewide drought response plan in place.
The plan was prepared by the Minnesota DNR.
Floods Erosion
Sherburne County Soil and Water Conservation District — The Sherburne County SWCD provides access
to natural resource management, conservation services, as well as technical, financial, and educational
assistance to landowners to address natural resource concerns. The SWCD manages the Cost -Share
Program, which provides funds to share the cost of systems or practices for erosion control,
sedimentation control, or water quality improvements designed to protect and improve soil and water
resources. Through the Cost -Share Program, land owners and/or occupiers can request financial and
technical assistance for the implementation of conservation practices. Projects that may be eligible for
cost -share funding include: Critical Area Planting, Diversions, Windbreak - Shelterbelt Establishment,
Grassed Waterway, Livestock Waste Management, Filter Strips, Sediment Basins, Streambank and
Shoreline Protection, Strip Cropping, Terraces, Well Decommissioning and Forestry Conservation
Practice.
Floods Dam Failure
Elk River Dam Emergency Action Plan — This plan provides the owner/operator of the Elk River Dam (aka
Orono Dam) with a clear plan of action when any dam emergency arises, with the intent of
safeguarding the lives and reducing damage to the property of the citizens of Sherburne County,
Wright County, and Hennepin County living along and downstream of the Elk River. This EAP provides
information about the dam and contact information for all parties involved in responding to, or affected
by an emergency at the dam. The EAP outlines what actions are required in the event of an emergency.
Summer Storms Winter Storm! Floods
Page196
Dam Failure
Sherburne County Multi -Hazard Mitigation Plan, 2020
St. Cloud Hydroelectric Dam EAP— Sherburne County Emergency Services has a copy of the St. Cloud
Hydroelectric Project Emergency Action Plan on file. This plan includes personnel responsibilities,
contact information, and flow charts.
See Appendix J for a list of all plans and programs, ordinances and staff in place in Sherburne County,
and Appendix K: Local Mitigation Survey Reportfurther details each jurisdiction's plans, policies,
programs, staff, funding and other resources they have in place in support of hazard mitigation.
Mitigation Goal
In Section 4 of this plan, the risk assessment identified Sherburne County as prone to a number of
natural hazards. The steering committee members understand that although hazards cannot be
eliminated altogether, Sherburne County can work toward building disaster -resistant communities.
The goals and strategies developed for the 2019 Minnesota State Hazard Mitigation Plan for natural
hazards were adopted for use in the Sherburne County Plan (Table 33). This framework will allow for
integration of the mitigation actions that are listed by Sherburne County and its jurisdictions into the
state plan. The state will then be able to develop a statewide strategy that will benefit all of Minnesota.
Table 33. Goals from the 2019 Minnesota State Hazard Mitigation Plan
Flooding Goal: Reduce deaths, injuries, property loss and economic disruption
due to all types of flooding (riverine, flash, coastal, dam/levee failure).
Wildfire Goal: Reduce deaths, injuries, property loss, natural resource and
economic disruption due to wildfires (forest, prairie, grass, and peat bogs).
Windstorms Goal: Reduce deaths, injuries, property loss, and economic
disruption due to windstorms.
Hail Goal: Reduce deaths, injuries, property damage, and economic disruption
due to hailstorms.
Winter Storms Goal: Reduce deaths, injuries, property loss, and economic
disruption due to winter storms (blizzard, ice, and ice storm).
Lightning Goal: Reduce deaths, injuries, property losses, loss of services, and
economic disruption due to lightning.
Tornado Goal: Reduce deaths, injuries, property loss, and economic disruption
due to tornadoes.
Drought Goal: Reduce economic loss and environmental impacts due to drought.
Extreme Heat Goal: Reduce deaths, injuries, and economic disruption due to
extreme heat.
Extreme Cold Goal: Reduce deaths, injuries, and economic disruption due to
extreme cold.
Dam/Levee Failure Goal: Reduce deaths, injuries, property loss, natural resource
and economic disruption due to dam/levee failure.
Erosion/Landslide/Mudslide Goal: Reduce deaths, injuries, property loss, and
economic disruption due to hillside, coastal, bluff: caused primarily by
oversaturation of soil.
5.3 Mitigation Action and Project Strategies
The mitigation actions in this plan are summarized into four main strategy types, as described in the
FEMA publications Local Mitigation Planning Handbook (2013) and Mitigation Ideas: A Resource for
Page 197
Sherburne County Multi -Hazard Mitigation Plan, 2020
Reducing Risk to Natural Hazards (201.3). Also included are the new FEMA Climate Resilient Mitigation
Actions (CRMA) released in 2oi6. Minnesota HSEM recommends the use of these mitigation strategies
to be in alignment with the state plan and those recommended by FEMA. A fifth strategy type was
determined by Minnesota HSEM for use within the state. They are listed in Table 34 below:
Table 34. Mitigation Strategies and Action
These actions include government
Local Plans and authorities, policies, or codes, that influence
Regulations the way land and buildings are developed and
built.
Structure and
Infrastructure
Projects
Natural
Systems
Protection
These actions involve modifying existing
structures and infrastructure to protect them
from a hazard or remove them from a hazard
area. This could apply to public or private
structures as well as critical facilities and
infrastructure.
This type of action also involves projects to
construct manmade structures to reduce the
impact of hazards.
Many of these types of actions are projects
eligible for funding through the FEMA Hazard
Mitigation Assistance program.
These are actions that minimize damage and
losses and also preserve or restore the
functions of natural systems.
Page1g8
• Comprehensive plans
• Land use ordinances
• Planning and zoning
• Building codes and enforcement
• Floodplain ordinances
• NFIP Community Rating System
• Capital improvement programs
• Open space preservation
• Shoreline codes
• Stormwater management
regulations and master plans
• Acquisitions and elevations of
structures in flood prone areas
• Utility undergrounding
• Structural retrofits
• Floodwalls and retaining walls
• Detention and retention structures
• Culverts
• Safe rooms
• Sediment and erosion control
• Stream corridor restoration
• Forest management
• Conservation easements
• Wetland restoration and
preservation
Sherburne County Multi -Hazard Mitigation Plan, 2020
These are actions to inform and educate
citizens, elected officials, and property
owners about hazards and potential ways to
mitigate them. These actions may also
include participation in national programs,
Education and
such as StormReady or Firewise
Awareness
Communities. Although this type of
Programs
mitigation reduces risk less directly than
structural projects or regulation, it is an
important foundation. A greater
understanding and awareness of hazards and
risk among local officials, stakeholders, and
the public is more likely to lead to direct
actions.
Mitigation
This is a State of Minnesota mitigation
Preparedness
strategy with the intent of covering
and Response
preparation and actions that protect life and
property during a natural disaster.
• Radio or television spots
• Websites with maps and
information
• Real estate disclosure
• Presentations to school groups or
neighborhood organizations
• Mailings to residents in hazard -
prone areas.
• StormReady
• Firewise Communities
• Emergency operations plan
• Flood fight plans and
preparedness
• Dam emergency action plans
• Warning
• Backup power
• Emergency capabilities
In the review and discussion of selected mitigation strategies and actions, steering committee
members and the public were asked to considerthe ranking of mitigation actions by priority for
implementation. Table 35 provides criteria that were taken into consideration in the process.
5.3.1 Hazard Mitigation Actions
Sherburne County and its included municipalities share a common Multi -Hazard Mitigation Plan and
worked closely to develop it. Local leaders work together with the Sherburne County Emergency
Management Directorto assure that the hazards and mitigation actions included in this plan are
accurate and addressed in theirjurisdictions.
The Sherburne County Mitigation Action Chart is provided in Table 36. The Sherburne County risks and
mitigation activities identified also incorporate the concerns and needs of townships and other entities
participating in this plan. Appendix G contains the jurisdictional mitigation action charts for the cities of
Becker, Big Lake, Clear Lake, Elk River, Princeton, St. Cloud and Zimmerman.
Following is an overview the mitigation action charts and description of each element of the chart
(columns A-K).
Column A — Numbered Item
Each mitigation action is identified by a number.
Column B — Hazard
Each mitigation action is identified by the hazard that it relates to. Actions that fall under "All -Hazards"
Page199
Sherburne County Multi -Hazard Mitigation Plan, 2020
relate to both natural and non -natural hazards. Other actions are specific to the natural hazards
addressed in Section 4.3, Hazard Profiles. xNote: For the purpose of grouping related natural hazards,
"Summer Storms" encompasses Tornadoes, Windstorms, Lighting and Hail and "Winter Storms"
encompasses Blizzards and Ice Storms (see Section 4-3).
Column C — Mitigation Strategy
Each mitigation action is identified by one of the following five mitigation strategies.
• Local Planning and Regulations
• Structure and Infrastructure Projects
• Natural Systems Protection
• Education and Awareness Programs
• Mitigation Preparedness and Response Support
See Section 5.3 and Table 34 for a description of each mitigation strategy and related types of actions.
Column D — Mitigation Action
Each mitigation action provides a concise, action -oriented description of the action or project to be
undertaken.
Column E — Reduces Risk to New / Existing Buildings or Infrastructure
Each mitigation action identifies if the activity reduces risk to new or existing buildings and
infrastructure. This element of the chart ensuresjurisdictions include consideration of actions that
address the built environment.
Column F — Status
Each mitigation action identifies the status of implementation. Status categories include:
• New — New actions that have been identified since the last plan.
• Ongoing —Actions from the last plan that require continuing application.
• In Progress — Actions from the last plan that are currently being acted upon.
Mitigation actions that have been completed or deleted from the 203.3 Sherburne County Multi Hazard
Mitigation Plan are identified and reported on in Appendix H. Completed and deleted mitigation
actions are not carried over into the updated mitigation action chart.
Column G — Priority
Each mitigation action identifies the jurisdiction's priority ranking for implementation of the action. See
Table 35.
Table 35. Criteria for Mitigation Action Priori
• Methods for reducing risk from the hazard are technically reliable.
High . The County has experience in implementing mitigation measures.
Priority . Mitigation measures are eligible under federal grant programs.
Page Isoo
Sherburne County Multi -Hazard Mitigation Plan, 2020
• There are multiple mitigation measures for the hazard.
• The mitigation measure(s) are known to be cost effective.
• The mitigation measures protect lives and property for a long period of time, or are
permanent risk reduction solutions.
• Mitigation methods are established.
• The County has limited experience with the kinds of measures that may be appropriate to
mitigate the hazard.
Moderate . Some mitigation measures are eligible for federal grants.
Priority • There is a limited range of effective mitigation measures for the hazard.
• Mitigation measures are cost-effective only in limited circumstances.
• Mitigation measures are effective for a reasonable period of time.
• Methods for reducing risk from the hazard are not well -established, are not proven
reliable, or are experimental.
• The State or Counties have little or no experience in implementing mitigation measures,
and/or no technical knowledge of them.
• Mitigation measures are ineligible under federal grant programs.
Low Priority . There is a very limited range of mitigation measures for the hazard, usually only one
feasible alternative.
• The mitigation measure(s) have not been proven cost effective and are likely to be very
expensive compared to the magnitude of the hazard.
• The long-term effectiveness of the measure is not known, or is known to be relatively
poor.
Column H — Expected Timeframe
Each mitigation action identifies the anticipated timeframe for implementation of the action. Most
mitigation actions fall within the next five-year planning cycle. Actions that have a specific timeframe
are noted.
Column I — Responsible Party
Each mitigation action identifies what personnel, department or agency will be lead for the
administration or implementation of the action.
Column J - Comments on Implementation, Administration & Integration into Local Planning
Mechanisms
Each mitigation action provides a description of how thejurisdiction will work to incorporate the
mitigation activity into other existing planning mechanisms, such as Capital Improvement Plans,
ordinance enforcement, public outreach measures or partnership coordination.
Column K — Possible Funding
Each mitigation action identifies where potential funding may come from to support implementation of
the mitigation activity, such as existing county or city funding, state or federal funding. Projects that
may be eligible for future FEMA Hazard Mitigation Assistance grant funding are noted.
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5.3.2 Mitigation Actions by Community
This plan is a multi -jurisdictional plan that covers Sherburne County, its school districts and the cities of
Becker, Big Lake, Clear Lake, Elk River, Princeton, St. Cloud and Zimmerman.
Steering committee members, elected government officials and staff from each city jurisdiction
actively participated in the development of mitigation action charts for implementation over the next
5-years (2020-2025). Identification of local mitigation actions were informed by a community's known
high -risk hazards, vulnerabilities and capabilities for mitigation (i.e., policies, programs, staff, funding
or other resources).
The following representatives provided review & input to mitigation actions to be included in their
respective draft Mitigation Action Chart (MAC) as part of the Sherburne County zozo MHMP Update.
Name of Jurisdiction Name of Representative, Title
Kyle Breffle, EM Director
Derek Baas, Deputy EM Director
Sherburne County Jason Kern, MNDNR Resource Protection Program Forester
Gina Hugo, Public Works Coordinator
Nancy Riddle Planning and Zoning Administrator
Lynn Waytashek, Asst Zoning Administrator
City of Becker Brent Baloun, Chief of Police/City Emergency Manager
City of Big Lake Joel D Scharf, Chief of Police/ City Emergency Manager
Clay Wilfahrt, City Administrator
City of Clear Lake Kari Mechtel, City Clerk
City of Elk River Mark Dickinson, Fire Chief / EM Director
City of Zimmerman
City of St. Cloud
(partial in Sherburne County)
City of Princeton
(partial in Sherburne County)
Ryan Maloney, Fire Chief / EM Director
Erin Tufte, Stearns County & City of St. Cloud EM
Ron Lawrence, Fire Chief/EM Director
Bob Gerold, Public Works Director
Todd Frederick, Police Chief
Mitigation actions are separated byjurisdiction in Appendix G.
Sherburne County Multi -Hazard Mitigation Plan, 2020
Section 6 — Plan Maintenance
6.1 Monitoring, Evaluation, and Updating the Plan
The Sherburne County Multi -Hazard Mitigation Plan (MHMP) should be considered a living document
The plan should be updated and approved by FEMA at a minimum of every five years. The guidance in
this section will function as the primary tool when reviewing progress on the implementation of the
Sherburne County MHMP.
The Sherburne County Director of Emergency Services is the individual responsible for leading all
efforts to monitor, evaluate, and update the hazard mitigation plan within the five-year window.
Throughout the five-year planning cycle, the Sherburne County Director of Emergency Services will
work with the Sherburne County Local Emergency Preparedness Committee (LEPC) to serve as the
committee to help monitor, review, evaluate, and update the Multi -Hazard Mitigation Plan. The LEPC
normally meets quarterly and consists of Sherburne County Emergency Services and other county
departments, as well as representatives from the cities of Becker, Big Lake, Clear Lake, Elk River and
Zimmerman. Additional stakeholders will be added based on need. If necessary, the Sherburne County
Director of Emergency Services will convene the committee to meet on a more regular basis to monitor
plan implementation progress and reassess needs and opportunities. This could be done in response to
funding cycles of programs that provide resources for hazard mitigation activities. If there is a need for
a special meeting due to new developments or a declared disaster occurring in the county, the
committee will meet to update pertinent mitigation strategies. Depending on Sherburne County
opportunities and fiscal resources, mitigation projects may be implemented independently by
individual communities orthrough local partnerships.
The committee will continue to review the MHMP goals and objectives to determine their relevance to
changing situations in Sherburne County. In addition, state and federal policies will be reviewed to
ensure they are addressing current and expected conditions. The committee will also review the risk
assessment portion of the plan to determine if this information should be updated or modified. The
parties responsible forthe various implementation actions will report on the status of their projects,
and will include which implementation processes worked well, any difficulties encountered, how
coordination efforts are proceeding, and which strategies should be revised.
Updates or modifications to the MHMP during the five-year planning process will require a public notice
and a meeting prior to submitting revisions to the individual jurisdictions for approval. The plan will be
updated via written changes, submissions as the committee deems appropriate and necessary, and as
approved by county commissioners.
Throughout the five-year window of the plan, each respective county department and jurisdiction will
be required to report on the status of mitigation actions in their charts to the Sherburne County
Director of Emergency Services so that progress notes may be maintained for the next plan update.
Page1112
Sherburne County Multi -Hazard Mitigation Plan, 2020
6.2 Implementation
Sherburne County and its included municipalities share a common Multi -Hazard Mitigation Plan and
work together closely to develop, revise, and implement it. This MHMP provides a comprehensive chart
of mitigation actions for Sherburne County and its jurisdictions (see Section 5.3.1, Hazard Mitigation
Actions). The cities of Becker, Big Lake, Clear Lake, Elk River and Zimmerman participated in the
MHMP planning process and identified the specific mitigation strategies that they would seek to
implement in their communities during the five-year planning cycle. These mitigation actions are
provided in Section 5.3.
A number of implementation tools are available to address hazards. Many of these tools are below,
however, in some cases additional discussion is needed in orderto identify what strategies are most
appropriate to use. This will be part of an ongoing discussion as Sherburne County looks for
opportunities for plan implementation. The following tools will be considered:
Education: In many cases, education of residents has been identified as one of the most effective
mitigation strategies.
Capital Investments: Capital investments such as fire and ambulance equipment, sprinkler systems
and dry hydrants are tools that can limit risks and impacts of natural hazards.
Data Collection and Needs Assessments: Data collection and needs assessments can aid in gaining a
better understanding of threats and allow planning for mitigation strategies accordingly. As resources
are limited forthis part of the planning process, additional data collection is likely to be an ongoing
activity as resources become available.
Coordination: Responsibilities for mitigation strategies run across various county departments, local
fire and ambulance departments, city and township governments, and a host of state and federal
agencies. Ongoing coordination is an important tool to ensure resources are used efficiently.
Coordination can also avoid duplication of efforts or prevent gaps that are created because of unclear
roles and responsibilities. The mitigation plan review process can function as a tool to have an ongoing
discussion of roles, responsibilities, and opportunities for coordination.
Regional Cooperation: Counties and public safety services providers throughout the region often share
similar challenges and concerns. In some cases, a regional approach may be warranted as a mitigation
strategy in order to save resources. Mutual aid agreements are a tool already in use for a number of
services. Needs assessments for fire and ambulance services and development of assistance for
volunteer recruiting, training, and retention could benefit from a regional approach. Cooperation
among counties could also help in lobbying for certain funding priorities that address concerns relating
to challenges in service delivery in rural areas. Organizations such as FEMA Region V and the MN
Department of HSEM through the Regional Program Coordinator can offertools and resources to assist
in these cooperative efforts.
Page 1 ii3
Sherburne County Multi -Hazard Mitigation Plan, 2020
Regulation: Regulation is an important mitigation tool for Sherburne County. Regulation plays a
particularly important role for land use, access to structures and the protection of water resources and
public health.
6.3 Continued Public Involvement
Continued public involvement is critical to the successful implementation of the Multi -Hazard
Mitigation Plan (MHMP). The Sherburne County Director of Emergency Services and the Sherburne
County Emergency LEPC members will continue to engage new public stakeholders in planning
discussions and project implementation during the five-year cycle of this plan.
In orderto seek continued public participation after the plan has been approved and during the five-
year window of implementation for this plan, Sherburne County will take the following measures:
• The plan will be posted on the Sherburne County Government Center website forthe public to
read and provide feedback. Collected feedback will be reviewed and the plan will be amended
as necessary.
• Following any major storms or natural disasters, Sherburne County Emergency Services will
seek to gather concerns and new ideas for mitigation from local residents to include in the next
update of the plan. This may be done through public meetings, outreach via social media (i.e.,
Sheriff's Office Facebook Page), or news releases via local media.
• Each community participating in the plan will be responsible to keep their local government,
schools and community members updated and engaged in the implementation of their
respective mitigation action charts (see Appendix G: Mitigation Actions by Jurisdiction). Each
respective jurisdiction will be required to report on the status of mitigation actions in their
charts to the Sherburne County Director of Emergency Services.
• Jurisdictions will use numerous means of public outreach to engage new public stakeholders in
providing input on mitigation efforts or concerns on hazards by sharing information at city
council /township board meetings, sharing information at special events, working with local
schools and partner organizations, and posting information on relevant local or social media
that their communities use to inform and engage the public. As mitigation projects are
implemented, jurisdictions will work to keep the public updated and engaged in those local
efforts.
Page 1 114
Sherburne County Multi -Hazard Mitigation Plan, 2020
APPENDICES
AppendixA
—Sherburne County Maps
Appendix B—
Sherburne County Critical Facilities
Appendix C
— Sherburne County Hazard Events
Appendix D—Adopting
Resolutions
Appendix E—
Steering Committee Meetings
Appendix F—
Public Outreach & Engagement Documentation
Appendix G
— Mitigation Actions by Jurisdiction
Appendix H
— Past Mitigation Action Review Status Report (203.3-203.9)
Appendix I —Works
Cited
Appendix J —
Sherburne County Plans & Programs In Place
Appendix K—
Local Mitigation Survey Report
Appendix L—
Minnesota Department of Health Climate & Health Report
Page 1 ii5
Sherburne County Multi -Hazard Mitigation Plan, 2020
Appendix A
Sherburne County Maps
Figure A - 1. Hydrography of Sherburne County.............................................................................
Figure A - 2. Sherburne County Population by Census Block, 2010.................................................
Figure A - 3. Percent Population Change, 2000-2010.....................................................................
Figure A - 4. Emergency Facilities and Shelters in Elk River............................................................
Figure A - 5. Emergency Facilities & Shelters in Big Lake, Becker, Zimmerman & Clear Lake.........
Figure A - 6. Emergency Facilities & Shelters in East St. Cloud & South Princeton .........................
Figure A - 7. Fire Stations & Drive Times in Sherburne County .......................................................
Figure A - 8. Sherburne County Utilities and Communication Infrastructure ..................................
Figure A - 9. Sherburne County Transportation Infrastructure.......................................................
Figure A -10. High Potential Loss Structures in Sherburne County ................................................
Figure A - 11. Sherburne County Land Cover, National Land Cover Database, 2016.......................
Figure A - 12. Sherburne County Land Ownership by Agency........................................................
Figure A -13. Mobile Home Parks in Sherburne County.................................................................
Figure A -14. Severe Hailstorms in Sherburne County, 1955-April 2019.........................................
Figure A -15. Severe Windstorms in Sherburne County, 1955-April 2019.......................................
Figure A -16. Tornado Touchdowns and Paths in Sherburne County,1950-April 2019...................
Figure A -17. Dams by Hazard Classification..................................................................................
FigureA -18. Condition of Dams....................................................................................................
Figure A -19. Sherburne County Aquifer Vulnerability and Public Wells .........................................
Figure A - 20. Wildfires by Acres Burned (1985-July 2o19) and Peat Soil Area in Sherburne County
Figure A - 21. Wildland Urban Interface in Sherburne County........................................................
Figure A - 22. 1%Annual Chance Floodplain (DFIRMs) in Sherburne County ..................................
Figure A - 23. Overview of 1%Annual Chance Flood Loss Estimation in Sherburne County ...........
Figure A - 24. High loss estimations in Palmer and Clear Lake Townships ......................................
Figure A - 25. Building Flood Loss Estimation for 1%Annual Chance Flood in Princeton City.........
Figure A - 26. Building Flood Loss Estimation for 1%Annual Chance Flood in Elk River City ..........
Figure A - 27. Feedlots in Sherburne County .........................
Figure A - 28. Pollution Sensitivity of Near -Surface Materials
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28
29
Sherburne County Multi -Hazard Mitigation Plan, 2020
Figure A - 1
r
S&16wafiY Faoaded Bann
Wet ftadcw
Shallow Met"
Deep Marsh
Shrub Seramo
Wooded 5rranV
� Bogs
Sherburne
:fir Iiake F ' j ti t "� ' Zdririr Ma
If
i
Page IA-2
Geld Scourtc MN ONR
Sherburne County Multi -Hazard Mitigation Plan, 2020
Page IA-3
Sherburne County Multi -Hazard Mitigation Plan, 2020
Figure A - 3. Percent Population (hinge, 2000-2010
•t �L� t
y
! F•� r
ry7f) � -h ITT
�•��. Svc L'akr .'F
Percent ChwW Elk R
m -stoc%
25.1% - 65%
65.1% - Iw%
_ 100.1% - 186%
Data Source: U.S. Census
Page IA-4
Sherburne County Multi -Hazard Mitigation Plan, 2020
1-14Ure A - 4. tmer4encu t-acilities ana Jneiters in LiK laver
1-1IZ w+. -r
?
heker]
d
�a�91dG�fg
Y
Elk �"t,
Var targeMiddle iughi--rm.rAr) r
c
un
r
I`
f
_ _
#
Dlalysk� Center
#
F mice
A
Nursing Hom.Q
•
Emergency Operation Center
0
pofiOe station
e
Fire Station
11
SODDI
Dmta 5wrms: 5herhume OXMt r P4N Deft- Healh),
Page IA-5
. 11
ti ure n - 5. tmer enc tacunies bnetters in bIg L,ak
( ram-
Zi me�rT�nin
�I Iner an-q
`.Elixe1 Ekmeirt31Y(; i
. Fil k DefrkNitary
z
hire�orl SdfCRll
m�1f7 I:I.7n
i T.w mT,67inT;trr High &
Shelter
Fdlce station
Fire Station
I&
$chwl
A
SupervtNod Living Facility
RE
Sherburne County Multi -Hazard Mitigation Plan, 2020
Becker, Zimmerman & Clear Lake
i_:
NM
� i I if
{
r}ed Flr oep,.
i l Q.3 I NEj
CI ear lake
to I
lear LW
dear Lake
fim Dcpar;nrenl
Clren'rw
--aFlrmrni�ry '� II
$raurr_es; Stoa'hume
Dept, ages I , MN i t
Page IA-6
Sherburne County Multi -Hazard Mitigation Plan, 2020
lit Shtt:lter�
A: Schad
A Nursing Home
Fire Station
Lit Wospltal
tacuities & bnetters in Last 5t. uoua & 5outn l-rinceton
"nth Princeton
tits
!
TaIaW urslrig&Ret3bOque'
T.
St. crp,d klc
O'e FATIrnmt
tM� �
7 (DSLbtkra
(11,MI)
LLd"'e n.
Norddand RiNe
�I
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0
■ k ~ R
� r
Da Sw.lr ; Shvrtsumc Cour`ty, PIN De
PageIA-7
MN Dept, >=d., HIFE.D
Sherburne County Multi -Hazard Mitigation Plan, 2020
Page I A - 8
Sherburne County Multi -Hazard Mitigation Plan, 2020
PageIA -g
Sherburne County Multi -Hazard Mitigation Plan, 2020
Page I A - so
Sherburne County Multi -Hazard Mitigation Plan, 2020
Page I A - ss
Sherburne County Multi -Hazard Mitigation Plan, 2020
FiQurP A - 11..SherhurnP C'nim.hj T.and Cnver. Natinnal T.and C'nver Database- 2016
OW water
Developed. OW Spce
Developed. Low Intensity
Developed. Mecum Intensity
Developed. High Intensity
Barren Lard (Rockd�nd/Clay)
Decidlous Forest
- Evergreen Forest
Hued Forest
&a55Wd, *rbhceous
Raswrt,May
Cunryated Caps
Woody Wetlands
Errr dent KffbaceOUS5 Vr:tlaq
e
k�
M 9.L�i}iI
1,
Y
r
ds Data Source. LISGS
Page IA-12
Sherburne County Multi -Hazard Mitigation Plan, 2020
�-IQureA - IZ. Jnerburne uounW Lana uwnersnzv nutiQenc
fly `-
■
r
i J
+Ip
.»
r
eurea,,��Land Mmag"nert
r�k�
D,�vR
my mot ra nP Crnrt-t.
- pep w mart dl Trarcllcrtatw
;
% •
iu ...... '1t
❑rwunn of Ccclo; Sa vkes
_ Oftmv n d Fish and WA Mr"-v-
t7f
to
- I.Iwft"I of puewy
,tiir.Y
_
,
- Owww sN Tfaa and Watw"Ns
Ei R
Omm" or Watr_rs
_ OVIer vudk
Ftwale 1axLrr'trW
Fmrate NIn'Inm.&WI
_ Stan fUnd0ftweltiatedl
U.S. h sh and VYWIN@ Smoke
F Nme
DM Source: MN ONR
Page I A - 13
Sherburne County Multi -Hazard Mitigation Plan, 2020
Page IA-14
Sherburne County Multi -Hazard Mitigation Plan, 2020
-figure A - 14. bevere Haustorms In bnereurne Lounty, 1y55-April 2w.9
Q
leer Lake
J
c
Sara m Indies
a I - 1-25
O L.25 • 1.5
0 I's - 2
0 2 - 2.75
0 2.75 - 4
kr,.,I
Page I A - 15
L
"PLLake,
00 a.
0 Elk Rsv'!r
AA 6�---
V
Data 5c'urte: NCEI
Sherburne County Multi -Hazard Mitigation Plan, 2020
�tgureA - 15. bevereyymastorms in Snert7urne county, 1y55-Apra July
J b
fir. a c
4rF �
rY�
tkat L ke }
w
(p 0 0
a a 0:, 1
O to
a'
�i
1
RapnRude in Knots
Hk :[IVE'F
0 51- 53
53 • 57
0 57 - 62
0 6,2.6e
0 68-95
Data Source- fKU
Page I A - i6
Sherburne County Multi -Hazard Mitigation Plan, 2020
-lgure A - le. l ornaao 1 oucnaowns ana - atns in bnereurne county, ly5u-hpru zuly
19rr
• EFO(m
EFt
FZ
Tornado Trick
Lip f't AL. 71mrrcrmari
.t
k-f
V 5
i`
Page IA-17
IS 4 _.
k Rrvei
Data Scurm NCR
Sherburne County Multi -Hazard Mitigation Plan, 2020
-IQure h - I /. Vams vu Hazara uasstncation
k3r Lake Zrrnmerman
lww"
s YL J >
Darn Huard Classficatinn
* HNIh(Class 1) pf kip•Lakc
P.•
• SwpAcant (Class II)
LDW (Class III) Elk kFwI
Levee System
Lr4led Area
NaOonai Wildlife Refuge
Page I A - 18
Usti : M OUR, NID, USJICE
Sherburne County Multi -Hazard Mitigation Plan, 2020
�fgure A - 16. Lonaftfon of cams
4 , Cleat
Le
•�_�-• '4 `air \
I�
■
lair
I mmefmar
•
seeker I ,,tea
Dam [addition Assessment r�sd+s A!r B9 Lake
■ $arrlxtcuy �' .
® Fairy
■ f1d RateA � Elk Rive
■ llnknrmn ..'
Levee systelt,
— t eveM Area
Na7OW Wddllfe Rtfugr
Data Sources: MN MR. NtD, USACE
Page I A - ig
Sherburne County Multi -Hazard Mitigation Plan, 2020
Page I A - 20
Sherburne County Multi -Hazard Mitigation Plan, 2020
A - Zu. MlapreS ny Acres tsurnea (ig&)-)uiy zuly) ana Feat boll Area 1n 5nernurne
■• • l r • l}*
■ • ■ ♦ i ■ 4 • 4• ■ •• ■ ri•=•
UN
r
Natural causes Kimmede feusft ►Rr•!
^ !F • • •i• • • w • r ion ■ � � ■ • �
c25 s25•� [ a,
0 2.5 • 100 • 25. 100 ' ' Xi • • • •
0 100 -200 i 100 - 200 � ■`
Q 200 - 6S0 # 200 - 650
0 650 - 2,%0 650 - 2,500 •
- Peet
Data Source: VIN QNR
Page I A - 21
Sherburne County Multi -Hazard Mitigation Plan, 2020
-figure A - Z1. miatana urban interface in bnertnime
� all " fp :mow
- w �. J .
y
■r� r
Enle+face 'RJR= L•a
Enternix
_ ND Ikntyreq E • F.i rr
Very Low Densty dousing
MedfujKUh D&Wty HowN
Lahr HousM sty
_ Lh914nown
® MRSIft: Refugr.
04ts n,:�:r: RA~ (2005)
Page I A - 22
Sherburne County Multi -Hazard Mitigation Plan, 2020
Page I A - 23
Sherburne County Multi -Hazard Mitigation Plan, 2020
Page I A - 24
Sherburne County Multi -Hazard Mitigation Plan, 2020
�ignre A - 24. Hign loss estimations in calmer ana l tear Lake 1
€uMang Dwrap Elk.
` Q S 10%
o S 25%
■ <_ 5D%
s t 99%
Aggregwed Lo.% by CPnSA v Bwk Palm . awnsh
s $125,000 ---
s $300,000
s $750,0W
s $1,675,WO
cr"It R pwb"wf. Nctmk MIS. 0% NFr
e
Page I A - 25
c! a
Dd lne: MN DNR, hazus, 5te.iburn@ Cory`ty
Sherburne County Multi -Hazard Mitigation Plan, 2020
-lgure H - z5. twitaing tlooa Loss tsttmation for 17. Annual unance tlooa in rrtnceton i
� pj, . W�W
�.WORN
Ib
1 _ 1
1
ly
� I
l � I
4
O < 25%
nn i
• � SL�sIO
Aggregated Loss by Census Block
e $125,OW {
t $750,000 i
<_ $1,575,006 1 ' r
y 1�r
Page I A - 26
Data Source: MN DNR, 4azus, Sherburne Cowo
Sherburne County Multi -Hazard Mitigation Plan, 2020
�iQure A - Lb. builam, ti00a Loss Lstiniation for 17o Annual unance ti00a in LIK laver
lit, gorawFW j
IZ ,
i
Elk
I
I
% Buildifl4 Damage
*04+t�r
e 51445
"VA*
a g 25%
=
• � 54gb
� r
Aggregated Loss by Census Block
S $125,0O0
5 *M,1300
s $750,O00
5 $1,675,000
DaU Source; MN DNIRHu^ Sherdurrle County
Io srm Fw, "bw DI USGS, t .L_ %&SA GCikA1l. N KaMnnor. NLFA5, NLS M WWL uSN cmoani #EMA tt= p"mr U 5 uw cam�ey..5mnus
GaH r4 FAQ N(AA. USM 4 dlewnStraaSAl.�ca [SV!$uf0,L rail ° « ^-^ `.,
Page I A - 27
Sherburne County Multi -Hazard Mitigation Plan, 2020
-figure A - zi. Feeatots in bnern me
On,
Clear Lake ti
+,
r
■ Cdltle, Brs�r
1 Pigs
Page I A - 28
•
t
a
71rfill rrrT-IAT$
•
i - w
I
i
Efa PIYt�t.
V
pate source mpcA
Sherburne County Multi -Hazard Mitigation Plan, 2020
,ure A - 28. Pollution Sensitivity of Near -Surface Materials
Data Source: MN aNR
Page I A - zg
Sherburne County Multi -Hazard Mitigation Plan, 2020
Appendix B
Sherburne County Critical Infrastructures
Name I AddressHealthcare Facilities
CentraCare Kidney Program 16830198th Avenue NW
Big Lake
55309
Dialysis
Center
Central Minnesota Regional Dialysis 17315 Zane Street
Elk River
55330
Dialysis
Center
Fairview Northland Regional Hospital
g11 Northland Drive
Princeton
55371
1 Hospital
Guardian Angels Care Center
40o Evans Avenue
Elk River
55330
Nursing
Home
Guardian Angels Elim Hospice
403 Main Street
Elk River
5533o
Hospice
Living Well Powell 15o Powell Circle West
Big Lake
55309
Supervised
Living facility
St Cloud
56304
Nursing
St Benedicts Senior Community 1810 Minnesota Boulevard SE
1
Home
AddressAir— — Emergency Services
Namecity
Becker Police Department 12o6o Sherburne Avenue
Becker
Zip
55308
Becker Volunteer Fire Department
12665 Riley Avenue Southeast
Becker
553o8
Big Lake Fire Department
20243 County Road 43
Big Lake
55309
Big Lake Police Department
121 Lake Street North
Big Lake
55309
Clear Lake Fire Department
8670 ill Avenue West
Clear Lake
55319
Elk River Fire Department Station 1
415 Jackson Avenue
Elk River
55330
Elk River Fire Department Station z
13073 Orono Parkway Northwest
Elk River
55330
Elk River Police Department
13077 Orono Parkway
Elk River
55330
Northeast Sherburne Fire and Rescue
Department
3oz391z8th Street
Princeton
55371
Saint Cloud Fire Department Station 3
1201 University Drive Southeast
Saint Cloud
56304
Saint Cloud Fire Department Station 4
1550 45th Avenue Southeast
Saint Cloud
56304
Sherburne County EOC
1388o Business Center Drive NW
Elk River
55330
Sherburne County Sheriff's Department
1388o United States Highway 10
Elk River
55330
Zimmerman -Livonia Fire District
13028 Fremont Avenue
Zimmerman
55398
Zimmerman Station #z
11162 265th Ave
Zimmerman
55398
Becker FD
173rd Ave
Princeton
55371
Clear Lake
418o io5th Ave
Clear Lake
55319
Page I B -1
Sherburne County Multi -Hazard Mitigation Plan, 2020
Becker ALP
Schools
AddressName
1200o Hancock St
Becker
55308
School
Becker High
sz000 Hancock St
Becker
553o8
School & Shelter
Becker Intermediate
sz000 Hancock St
Becker
553o8
School
Becker Middle
sz000 Hancock St
Becker
553o8
School
Becker Primary
sz000 Hancock St
Becker
553o8
School
Big Lake High
5os Minnesota Sve
Big Lake
55309
School & Shelter
Big Lake Middle
601 Minnesota Ave
Big Lake
55309
School
C.O.M.P.A.S.S.
11500193rd Ave NW
Elk River
55330
School
Clearview Elem
7310 Hwy 24
Clear Lake
55319
School & Shelter
Elk River High
goo School St
Elk River
55330
School & Shelter
Elk River Level 5
948 Proctor Rd
Elk River
55330
School
Elk River Shared Time Prog.
11500193rd Ave NW
Elk River
55330
School
Faith Community Lutheran
Church
12266 255th Ave
Zimmerman
55398
Shelter
Faith Lutheran Church
3000 county Rd 8 SE
Saint cloud
56304
Shelter
Handke Family Center
1170 Main St
Elk River
55330
School
Heritage Montessori School
310 Lake St S
Big Lake
55309
School
Independence Elem
701 Minnesota Ave
Big Lake
55309
School
Ivan Sand Day
1232 School St
Elk River
55330
School
Ivan Sand Fairview
1232 School St
Elk River
55330
School
Ivan Sand IS
1232 School Street
Elk River
55330
School
Ivan Sand Night
1232 School St
Elk River
55330
School
Liberty Elem
17901 z05th Ave N W
Big Lake
55309
School & Shelter
Lincoln Elem
Living Waters Pentecostal
Church of God
MCF-St. Cloud
60o School St
Elk River
55330
School
7830 Church St
Clear Lake
55319
Shelter
2305 Minnesota Blvd SE
Saint Cloud
56302
School
Meadowvale Elem
127o1 Elk Lake Rd
Elk River
55330
School & Shelter
Monticello -Big Lake Assembly
of God
20500 County Rd 11
Big Lake
55309
Shelter
Northland Bible Baptist Church
3686 County Road 8 SE
Saint Cloud
56304
Shelter
Online
11500193rd Ave NW
Elk River
55330
School
Parker Elem
Soo School St
Elk River
55330
School
Princeton Free Evangelical
Church
12140 317th Ave
Princeton
55371
Shelter
Salk Middle
1197o Highland Rd
Elk River
55330
School
Solid Rock Christian Academy
11800196th Ave NW
Elk River
55330
School
Spectrum High
17796 Industrial Circle NW
Elk River
55330
School
Spectrum Middle 6
11044Industrial Circle NW
Elk River
55330
School
St. Andrews Catholic
428 Irving Ave NW
Elk River
55330
School
Talahi Community Elem
13z1 University Dr SE
Saint Cloud
56304
School & Shelter
Twin Lakes Elem
I 100501g1st Ave NW
Elk River
55330
School
Page IB-2
Sherburne County Multi -Hazard Mitigation Plan, 2020
Vandenberge Middle
948 Proctor Ave
Elk River
55330
School
Westwood Elem
136514th Ave S
Zimmerman
55398
School
Zimmerman Elem
Zimmerman evangelical free
church
Zimmerman High
25959 4th St W
25620128th s
25900 4th St W
Zimmerman
55398
School
Zimmerman 55398
Shelter
Zimmerman 55398
School & Shelter
Zimmerman Middle
25900 4th St W
Zimmerman
55398
School
Transportation
Leaders Clear Lake Airport
AddressName
8948 951h Ave
Clear Lake
55319
Princeton Municipal Airport
80o Airport Rd
Princeton
55371
Sherburne County Public Works
1388o Business Ctr Dr NW
Elk River
55330
St. Cloud Regional Airport
1550 451h Ave SE
St. Cloud
56304
Twin Cities BNSF —Staples Subdivision
AddressName Utilities
Aspen Hills Homeowners Association 20300150th St Elk River
55330
Becker city of
11956 Gardner St
Becker
55308
Big Lake city of
18041198th Ave
Big Lake
55309
Clear Lake -Clearwater Sewer Authority
6491 Co Rd 8
Clear Lake
55319
Elk River city of
248 Railroad Dr
Elk River
55330
Elk River Municipal Utilities
13069 Orono Pkwy NW
Elk Rlver
55330
Great River Energy
17845 US-10
Elk River
55330
Hidden Haven Homeowners Association
156901o1st Street SE
Becker
553o8
KAW Parks LLC
126 Office St
Big Lake
55309
Koch Pipeline
6483 85th St S
Cottage Grove
55o16
Metal Craft Machine & Engineering
1376o Business Ctr Dr NW
Elk River
55330
Natural Systems Utilities
17818 Hwy 65 NE, Suite too
Ham Lake
55304
Nordwall Estates Inc
31.841124th St
Princeton
55371
Northern Natural Gas Co
Princeton
55371
Northern States Power a MN Corp dba Xcel
Energy
Plaisted Companies Inc
Princeton city of
414 Nicollet Mall
Minneapolis
55401
11555 2051h Ave NW
Elk River
55330
705 N 2" d St
Princeton
55371
Ridges of Rice Lake Homeowner's Association
22325 Watson Street NW
Elk River
55330
Shores of Eagle Lake HOA
1851h St NW
Big Lake
55309
Sysco Western Minnesota
goo US-10
St. Cloud
56304
Page I B - 3
Sherburne County Multi -Hazard Mitigation Plan, 2020
Tescom Corporation 12616 Industrial Blvd NW
Elk River
55330
Princeton
55371
United States Distilled Products 160712" St S
Rogers
55374
Whispering Ridge Homeowners Association of
14165 James Rd Suite 106
Zimmerman Inc
Windsor Meadows WWTS LLC
Elk River
55330
Elk River
55330
Windsor Oaks Elk River Homeowners 1382.5193rd Circle NW
Association
Windsor Park 3rd Addition Homeowners
Association
Elk River
Elk River
55330
55330
Windsor Park Homeowner's Association
13444 212" Ave
Xcel Energy, Inc.
13999 Industrial Blvd
Becker
553o8
Zimmerman city of
26o6q 2"d St W
Zimmerman
553g8
at Name OwnerDams
Eagle Lake Dur &ne County
Sh
Sherbur
& Levees
Elk River (tributary) Big Lake
Battle Brook Livonia
Dam
Elk Lake
MNDNR - Trails
Dam
Elk River
City of Elk River
Elk River
Elk River
Dam
Fox Pond
USF&W
St. Francis River (tributary)
Santiago
Dam
Lake Mitchell
City of Big Lake
Elk River (tributary)
Big Lake
Dam
NSP-Bottom Ash
Xcel Energy
Mississippi River
Becker
Dam
Rush Lake
MN DNR - Fisheries
Lily Creek
Clear Lake
Dam
Sherburne Nat'l
USDA FS
St. Francis River
Blue Hill
Dam
Sherburne Nat'l Dike 6A
USDA FS
St. Francis River (tributary)
Blue Hill
Dam
Sherburne Nat'l Pool 14A
USDA FS
St. Francis River (tributary)
Blue Hill
Dam
Sherburne Nat'l Pool 17
USDA FS
St. Francis River (tributary)
Orrock
Dam
Sherburne Nat'l Pool 18B
USDA FS
St. Francis River (tributary)
Orrock
Dam
Sherburne Nat'l Pool 19
USF&W
St. Francis River (tributary)
Orrock
Dam
Sherburne Nat'l Pool 20
USDA FS
St. Francis River (tributary)
Orrock
Dam
Sherburne Nat'l Pool 28
USDA FS
St. Francis River (tributary)
Orrock
Dam
Sherburne Nat'l Pool 7A
USDA FS
St. Francis River (tributary)
Blue Hill
Dam
Sherburne Nat'l Pool 7B
USDA FS
St. Francis River (tributary)
Blue Hill
Dam
Sherco
Xcel Energy
Mississippi River -OS
Becker
Dam
Aggregatel industries - Elk River Aggregate
Amcon Block & Precast Inc
Anderson-Gilyard
12001213th Ave NW Elk River 55330
2211 US Highway 10 SE St Cloud 56304
12037 Morris St Becker 553o8
Page I B - 4
Sherburne County Multi -Hazard Mitigation Plan, 2020
Hazardous
Army Aviation SupportFfacility #2
Barton Sand & Gravel Co - Pit 761
Barton Sand & Gravel Co Pit 718
AddressName
2185 45th Ave SE
St Cloud
56304
23110 US Highway 169 NW
Elk River
55330
11560 2o5th Ave NW
Elk River
55330
Beaudry Oil Company - Elk River
730 Quinn Ave
Elk River
55330
Cargill Inc Animal Nutrition Center
10383165th Ave NW
Elk River
55330
Cargill Kitchen Solutions
20021176th St NW
Big Lake
55309
Censtome - Elk River
11755 213th Ave NW
Elk River
55330
Centra Sota Cooperative
9769 5oth st se
Clear lake
55319
Centra Sota Cooperative
2168165th Ave SE
Santiago
55377
City of Elk River Street Garage
1900o Proctor Rd
Elk River
55330
Clear Lake Tanks
8370 3rd Ave W
Clear Lake
55319
Commercial Asphalt Co Plant 8
11711 221st Ave NW
Elk River
55330
Crop Production Services
421 Foley Ave
Big Lake
55309
Crop Production Services Inc
20190 US Highway 10 NW
Big Lake
55309
Crystal Cabinets Works Inc
1301 Rum River Dr S
Princeton
55371
Cymbet Corporation
18326 Joplin St NW
Elk River
55330
Directv Midwest Diverse Facility
1681.5197th Ave NW
Big Lake
55309
ECM Publishing Inc
120114th Ave S
Princeton
55371
Elk River High School
goo School St
Elk River
55330
Elk River Landfill
2246o US Highway 169 NW
Elk River
55330
Elk River Machine Co
828 4th St
Elk River
55330
Elk River Municipal Utilities
1705 Main St
Elk River
55330
Elk River Red-E Mix
2060o US Highway 169 NW
Elk River
55330
Ferrellgas
1965o 172nd St NW
Big Lake
55309
Great River Energy Elk River Resource Processing Plant
1.0700165th Ave NW
Elk River
Nw
Great River Energy -Elk River Generating Station
17845 US Highway 10 NW
Elk River
55330
Jacks Oil Distributing Inc Clear Lake
5988 77th St SE
Clear Lake
55319
Jiffy Lube #2859
18298 Zane St NW
Elk River
55330
Knife River- Becker
16491157th St SE
Becker
55308
Knife River Asphalt Plant 3
2453 US Highway 10 SE
St Cloud
56304
Knife River St Cloud
2450 US Highway 10 SE
St Cloud
56304
Lakes Gas Co #39
12086 Donnelly St
Becker
553o8
Lakes Gas Co #39.1
8360 3rd Ave W
Clear Lake
55319
Liberty Paper Inc
1350o Liberty Ln
Becker
553o8
Nelson Nursery Inc
27620 US Highway 169 NW
Zimmerman
55398
Plymouth Foan Inc
3.3900 Industry Ave
Becker
553o8
Pyrotechnic Display Inc
9405 River Rd SE
Clear Lake
55319
Qwest Communications
440 Jackson Ave
Elk River
55330
Sportech Inc
10800175th Ave NW
Elk River
55330
Superamerica #4196
17079 Yale Ct
Elk River
55330
Sylva Corporation Inc
goo Airport Rd
Princeton
55371
Page IB-5
Sherburne County Multi -Hazard Mitigation Plan, 2020
Major•
AddressName
Accurate Home Care Soo E Germain St
St. Cloud
56304
Acromix Machinery
828 4th St NW
Elk River
55330
Allina Health
14181 Business Ctr Dr NW
Elk River
55330
Alltool Pinnacle Design & Mfg
19188 Industrial BLvd NW
Elk River
55330
AMCON Block & Precast
2211 Highway io South
St. Cloud
56304
Avalon Home Care
20132 Ulysses St NW
Elk River
55330
Becker Furniture World
12940 Prosperity Ave
Becker
55308
Brothers Fire Protection
600 25th Ave S
Elk River
56301
Cargill Kitchen Solutions
176th St NW
Big Lake
55309
Coborns
19425 Evans St NW
Elk River
55330
Cretex, Inc
311 Lowell Ave NW
Elk River
55330
Crystal Cabinets
110o Crystal Dr
Princeton
55371
Cub Foods
19216 Freeport Ave
Elk River
55330
E & O Tool & Plastics Inc
19178 Industrial Blvd NW
Elk River
55330
Elk River Ford
17219 US-10
Elk River
55330
Elk River Machine
1752o Tyler St
Elk River
55330
Elk River Nursing Home
40o Evans Ave NW
Elk River
55330
Fairview
290 Main St NW
Elk River
55330
Fairview Northland
911 Northland Dr
Princeton
55371
Faribault Foods Beverage Inc
13512 Business Ctr Dr NW
Elk River
55330
First National Financial Services
812 Main St NW
Elk River
55330
Gentra Systems Inc
690 Humboldt Dr
Big Lake
55309
Great River Energy
17845 US-10
Elk River
55330
Guardian Angels of Elk River
508 Freeport Ave Suite A
Elk River
55330
Home Depot
18011 Zane St NW
Elk River
55330
Jim's Market
26233 z"d St E
Zimmerman
55398
Liberty Paper Inc
1350o Liberty Ln
Becker
55308
Menards
19521 Evans St NW
Elk River
55330
Metal Craft Mch & Engrg Inc
1376o Buisness Ctr Dr NW
Elk River
55330
Page IB-6
Sherburne County Multi -Hazard Mitigation Plan, 2020
Major• •
AddressName
Plaisted Co 11555 2051h Ave NW
Elk River
55330
Remmele Engineering Inc
3.77011.981h Ave
Big Lake
55309
Saint Benedict's Care Center
1810 Minnesota Blvd
St. Cloud
56304
Select Transcription Inc
11041183rd Cir NW
Elk River
55330
Sportech Inc
108001751h Ave NW
Elk River
55330
Sysco Western Minnesota
90 US-10
St. Cloud
56304
Tescom Corporation
12616 Industrial Blvd NW
Elk River
55330
The Bank of Elk River
630 Main St NW
Elk River
55330
TJ Potter Trucking
13000 Sherburne Ave
Becker
55308
US Distilled Products
1607 121h St S
Princeton
55371
Wal-Mart
1.&85 Zane St NW
Elk River
55330
Wolf Material Handling Systems
1268o Industrial Blvd NW
Elk River
55330
Government• •
AddressName
Baldwin Township Hall 30239128th St NW
Princeton
55371-
Baldwin Township Maintenance Facility
30239128th St
Princeton
55371
Becker City Hall
1206o Sherburne Ave
Becker
55308
Becker Public Works
11956 Gardner St, Becker
Becker
55308
Becker Township Hall
12165 Hancock St
Becker
55308
Big Lake City Hall
16o Lake St N
Big Lake
55309
Big Lake Public Works
1.8041198th Ave
Big Lake
55309
Big Lake Township Hall
21g6o CSAH 5
Big Lake
55309
Blue Hill Township Hall
15341321st Ave
Princeton
55371
Central Maintenance Facility
3.20015th Ave SE
St. Cloud
56304
Clear Lake City Hall
76841st Ave W
Clear Lake
55319
Clear Lake Public Works
7684 ill Ave W
Clear Lake
55319
Clear Lake Township Hall
858o Main Ave
Clear Lake
55319
Elk River City Hall
13065 Orono Parkway
Elk River
55330
Elk River Public Works
lgoo Elk Lake Rd NW
Elk River
55330
Haven Township Hall
4230 45th Ave SE
St. Cloud
56304
Highway Department
425 Jackson Ave
Elk River
55330
Livonia Township Maintenance Facility
2651.9112th St
Zimmerman
55398
Livonia Township Hall
11162 265th Ave NW
Zimmerman
55398
Orrock Township Hall
2640118oth St NW
Big Lake
55309
Palmer Township Hall
418o io5th Ave SE
Clear Lake
55319
Princeton City Hall
705 end St N
Princeton
55371
Public Works Facility
12002 Morris St
Becker
55308
Santiago Township Hall
16656 loth St SE
Santiago
55377
Sherburne County Government Center
1388o Business Center Dr
Elk River
1 55330
Page I B - 7
Sherburne County Multi -Hazard Mitigation Plan, 2020
Sherburne Public Works
Government Buildings
AddressName
Sherburne Public Works
Elk River
55330
USDA / FSA
14855 Highway so NW
Elk River
55330
WIC Clinic
1$334 Joplin St NW
Elk River
55330
Zimmerman City Hall
3.298o Fremont Ave
Zimmerman
55398
Zimmerman Public Works
3.298o Fremont Ave
Zimmerman
55398
Sherburne County Multi -Hazard Mitigation Plan, 2020
Appendix C
Sherburne County Hazard Events
Page IC-1
Sherburne County Multi -Hazard Mitigation Plan, 2020
The National Centers for Environmental Information storm events database was queried for all notable
events since 1950. However, some categories of events do not have records prior to 1996. Data was
available through July of 2019.
Table C -1. All tornadoes recorded by NCEI, 1950-July 2019
Location or
County
Orrock
Date
3/6/2017
magnitude
EF1
Deaths
0
Injuries
0
Property
Damage
Unknown
Clear Lake
6/17/201.0
EFo
0
0
Unknown
Clear Lake
6/17/2010
EFo
0
0
Unknown
Becker
7/19/2oo8
EFo
0
0
Unknown
Zimmerman
8/8/2004
F0
0
0
Unknown
Clear Lake
5/30/2004
Fo
0
0
Unknown
Big Lake
5/9/2004
Fo
0
0
Unknown
Sherburne County
5/30/1991
Fo
0
0
Unknown
Sherburne County
5/30/1991
Fo
0
0
Unknown
Sherburne County
4/27/1986
Fo
0
0
$250
Sherburne County
6/13/1983
Fo
0
0
$25,000
Sherburne County
7/1/1973
Fo
0
0
$2,500
Sherburne County
7/22/1967
F2
1
12
$2,500,000
Highest Value
Property Damage
$21500,000
Table C - 2. All severe hail storm events recorded by NCEI, 1950-July 2019
or Deaths
County
Zimmerman 7/26/2019 1.25 0
Injuries
0
PropertyLocation
-Damage
Unknown
Elk River
7/26/2019
1.25
0
0
Unknown
Zimmerman
7/26/203.9
1.75
0
0
Unknown
Elk River
7/26/2019
1
0
0
Unknown
Orrock
7/26/2019
2
0
0
Unknown
Becker
7/26/2019
1
0
0
Unknown
Clear Lake
7/26/2019
2.5
0
0
Unknown
Clear Lake
7/26/2019
4
0
0
Unknown
Clear Lake
7/26/2019
1
0
0
Unknown
Zimmerman
7/15/203.9
1
0
0
Unknown
Zimmerman
7/15/2019
1.25
0
0
Unknown
Zimmerman
7/15/2019
1.25
0
0
Unknown
Big Lake
8/31/2o18
1.25
0
0
Unknown
Becker
5/29/2o18
o.88
0
o
Unknown
Princeton
3/6/2017
0.75
0
0
Unknown
Becker
3/6/2017
1
0
0
Unknown
Page IC-2
Sherburne County Multi -Hazard Mitigation Plan, 2020
LocationProperty
County
Big Lake
Date
9/6/2oi6
inches)
1.5
Deaths
0
injuries
0
Damage
$2,000
Elk River
6/29/2015
1
0
0
Unknown
Elk River
6/29/2015
0.88
0
0
Unknown
Elk River
6/9/2015
1
0
0
Unknown
Big Lake
6/9/2015
1
0
0
Unknown
Becker
6/9/2015
1.75
0
0
Unknown
Elk River
6/6/2014
0.75
0
0
Unknown
Zimmerman
5/8/2014
1
0
0
Unknown
Princeton
5/7/2014
0.75
0
0
Unknown
Elk River
9/19/201.3
1.25
0
0
Unknown
Big Lake
9/19/2013
1.5
0
0
Unknown
Big Lake
9/19/2013
0.75
0
0
Unknown
Orrock
7/3/2012
o.88
0
0
Unknown
Zimmerman
5/28/2012
0.75
0
0
Unknown
Princeton
5/19/2012
o.88
0
0
Unknown
Cable
5/1/2012
1
0
0
Unknown
Zimmerman
7/1/2011
1
0
0
Unknown
Orrock
7/1/2011
1.25
0
0
Unknown
Big Lake
7/1/2011
2.75
0
0
$50,000
Big Lake
7/1/2011
0.75
0
0
Unknown
Elk River
5/10/2011
1
0
0
Unknown
Elk River
5/10/2011
1.75
0
0
Unknown
Zimmerman
5/10/2011
1.75
0
0
Unknown
Elk River
5/3.0/2011
1
0
0
Unknown
Clear Lake
5/3.0/2011
0.75
0
0
Unknown
Clear Lake
5/10/2011
0.75
0
0
Unknown
Clear Lake
8/13/2010
1
0
0
Unknown
Elk River
8/7/2010
0.88
0
0
Unknown
Elk River
6/25/2010
z
0
0
Unknown
Elk River
6/17/2010
1.25
0
0
Unknown
Clear Lake
6/17/2010
2.5
0
0
Unknown
Elk River
7/21/2009
1.25
0
0
Unknown
Zimmerman
7/21/2009
0.75
0
0
Unknown
Santiago
7/21/2009
1
0
o
Unknown
Lake Fremont
7/11/2oo8
0.75
0
o
Unknown
Lake Fremont
7/11/2oo8
0.75
0
0
Unknown
Big Lake
5/31/2oo8
0.75
0
0
Unknown
Big Lake
5/31/2oo8
1.5
0
0
Unknown
Big Lake
5/31/2oo8
1.75
0
0
Unknown
Orrock
5/31/2oo8
1
0
o
Unknown
Page I C - 3
Sherburne County Multi -Hazard Mitigation Plan, 2020
LocationProperty
County
Santiago
Date
5/31/2oo8
inches)
0.88
Deaths
0
injuries
0
Damage
Unknown
Santiago
5/31/2oo8
0.75
0
0
Unknown
Elk River
5/25/2oo8
1
0
0
Unknown
Orrock
5/25/2oo8
1
0
0
Unknown
Elk River
5/25/2oo8
1.75
0
0
Unknown
Big Lake
5/25/2oo8
1
0
0
Unknown
Elk River
5/25/2oo8
0.75
0
o
Unknown
Big Lake
5/25/2oo8
1.75
0
o
Unknown
Big Lake
5/25/2oo8
0.88
0
0
Unknown
Big Lake
5/25/2oo8
0.75
0
o
Unknown
Zimmerman
9/20/2007
0.75
0
o
Unknown
Becker
9/20/2007
1
0
0
Unknown
Cable
9/20/2007
1
0
0
Unknown
Big Lake
9/13/2007
0.75
0
0
Unknown
Zimmerman
8/13/2007
1
0
o
Unknown
Elk River
7/8/2007
0.75
0
o
Unknown
Elk River
7/8/2007
1.25
0
0
Unknown
Elk River
7/8/2007
0.75
0
0
Unknown
Zimmerman
7/8/2007
0.75
0
0
Unknown
Big Lake
7/8/2007
0.75
0
0
Unknown
Cable
6/20/2007
1
0
0
Unknown
Elk River
4/21/2007
0.88
0
0
Unknown
Big Lake
4/21/2007
0.75
0
0
Unknown
Becker
4/21/2007
0.75
0
0
Unknown
Elk River
9/3/2oo6
0.88
0
0
Unknown
Becker
8/24/2oo6
0.75
0
o
Unknown
Clear Lake
8/24/2oo6
0.75
0
0
Unknown
Santiago
5/29/2oo6
0.75
0
0
Unknown
Clear Lake
5/29/2oo6
1
0
o
Unknown
Elk River
9/21/2005
0.75
0
o
Unknown
Elk River
9/21/2005
0.88
0
0
Unknown
Big Lake
9/21/2005
1.75
0
0
$25,000,000
Becker
9/21/2005
1.25
0
0
Unknown
Big Lake
9/21/2005
0.75
0
0
Unknown
Elk River
9/12/2005
0.75
0
0
Unknown
Elk River
9/4/2005
z
0
0
Unknown
Clear Lake
8/16/2005
0.75
0
0
Unknown
Becker
6/27/2005
0.75
0
o
Unknown
Orrock
6/20/2005
0.75
0
0
Unknown
Clear Lake
6/20/2005
1
0
0
Unknown
Page I C - 4
Sherburne County Multi -Hazard Mitigation Plan, 2020
LocationProperty
Count
Princeton
Date
6/13/2005
inches)
1.75
Deat s
0
injuries
0
Damage
Unknown
Big Lake
6/8/2005
0.75
0
0
Unknown
Zimmerman
6/8/2004
1.75
0
0
Unknown
Becker
5/26/2004
0.75
0
0
Unknown
Big Lake
448/2004
o.88
0
0
Unknown
Becker
4/18/2004
o.88
0
0
Unknown
Clear Lake
4/18/2004
1
0
0
Unknown
Becker
4/18/2004
1
0
0
Unknown
Elk River
7/14/2003
1
0
0
Unknown
Clear Lake
7/14/2003
0.75
0
0
Unknown
Cable
7/1-4/2003
0.75
0
0
Unknown
Clear Lake
7/1-4/2003
o.88
0
0
Unknown
Becker
7/2/2003
0.75
0
0
Unknown
Elk River
9/5/2002
1
0
0
Unknown
Elk River
9/1/2002
1
0
0
Unknown
Zimmerman
9/1/2002
0.75
0
0
Unknown
Princeton
6/25/2002
0.75
0
0
Unknown
Zimmerman
6/24/2002
o.88
0
0
Unknown
Big Lake
5/5/2002
0.75
0
0
Unknown
Elk River
5/5/2002
0.75
0
0
Unknown
Zimmerman
4/1.8/2002
0.75
0
0
Unknown
Elk River
4/1.8/2002
o.88
0
0
Unknown
Clear Lake
8/26/2001
0.75
0
0
Unknown
Cable
6/1.6/2001
0.75
0
0
Unknown
Clear Lake
5/7/2000
o.88
0
0
Unknown
Becker
6/6/1-999
0.75
0
0
Unknown
Becker
6/6/1-999
0.75
0
0
Unknown
Big Lake
6/26/1998
1
0
0
Unknown
Elk River
6/26/1998
1..5
0
0
Unknown
Elk River
8/3/1997
1
0
0
Unknown
Elk River
1.0/29/1996
0.75
0
0
Unknown
Princeton
5/18/1996
o.88
0
0
Unknown
St. Cloud
6/22/1995
0.75
0
0
Unknown
Big Lake
5/30/1-994
0.75
0
0
Unknown
St Cloud
1-0/5/1-993
1.25
0
0
Unknown
Elk River
9/1-3/1-993
0-75
0
0
Unknown
Sherburne County
8/27/1990
4
0
0
Unknown
Sherburne County
8/2o/i987
0.75
0
0
Unknown
Sherburne County
7/23/1-987
0.75
0
0
Unknown
Sherburne County
7/1.8/1986
0.75
0
0
Unknown
Page IC-5
Sherburne County Multi -Hazard Mitigation Plan, 2020
LocationProperty
County__
Sherburne County
Date
6/21./1.986
inches)
0.75
Deaths
0
Injuries
0
Damage
Unknown
Sherburne County
7/24/s98s
1.75
0
0
Unknown
Sherburne County
7/24/s98s
1.75
0
0
Unknown
Sherburne County
7/1-s/s98o
2.75
0
0
Unknown
Sherburne County
7/4/1-98o
1
0
0
Unknown
Sherburne County
6/4/1-977
1.75
0
0
Unknown
Sherburne County
6/4/1-977
1.25
0
0
Unknown
Sherburne County
6/4/1977
0-75
0
0
Unknown
Sherburne County
6/1.2/1-976
1.5
0
0
Unknown
Sherburne County
6/20/1-974
0-75
0
0
Unknown
Highest Value
Property Damage
$25,000,000
Table C - 3. All severe thunderstorm wind events recorded by NCEI, 1950-July 2019
St. Cloud Regional
Sherburne County
Sherburne County
Big Lake
Becker
Princeton
Big Lake
Elk River
Elk River
Big Lake
Princeton
Orrock
Orrock
(Stc)St Cloud
I Regional Airport
6/4/201.9
Thunderstorm Wind
51
0
0
Unknown
7/3/2os8
High Wind
61.
0
0
Unknown
6/s1/2os8
High Wind
52
0
0
Unknown
6/ss/201.7
Thunderstorm Wind
56
0
0
Unknown
6/ss/201.7
Thunderstorm Wind
52
0
0
Unknown
3/6/201.7
Thunderstorm Wind
56
0
0
Unknown
9/6/2os6
Thunderstorm Wind
56
0
0
$25,000
7/21/2o16
Thunderstorm Wind
52
0
0
Unknown
6/25/2os6
Thunderstorm Wind
52
0
0
Unknown
7/1.2/201.5
Thunderstorm Wind
52
0
0
Unknown
5/31./201.4
Thunderstorm Wind
56
0
0
Unknown ,
6/21/201.3
Thunderstorm Wind
56
0
0
Unknown
6/21/201.3
6/21/2013
Thunderstorm Wind
Thunderstorm Wind
52
0
0
Unknown ,
Unknown
S7
0
0
Cable
8/3/201.2
Thunderstorm Wind
51
0
0
Unknown
Cable
5/27/201.2
Thunderstorm Wind
64
0
0
Unknown
Clear Lake
5/27/201.2
Thunderstorm Wind
63
0
0
Unknown
Elk River
8/2/2011
Thunderstorm Wind
56
0
0
$25,000
Elk River
8/2/201.1.
Thunderstorm Wind
56
0
0
Unknown
Cable
8/2/201.1.
Thunderstorm Wind
55
0
0
Unknown
Zimmerman
7/1-9/201.1.
Thunderstorm Wind
61.
0
0
Unknown
Cable
7/1-0/2oss
Thunderstorm Wind
56
0
0
Unknown
Page IC-6
Sherburne County Multi -Hazard Mitigation Plan, 2020
or
Elk River
Date
7/i/201.1.
Type
Thunderstorm Wind
Magnitude
50
Deaths
0
Injuries
0
PropertyLocation
DaMage
Unknown
Orrock
7/s/2o1.1.
Thunderstorm Wind
61
0
0
$50,000
Zimmerman
7/s/201.1.
Thunderstorm Wind
50
0
0
Unknown
Big Lake
7/s/201.1.
Thunderstorm Wind
61.
0
0
Unknown
Sherburne County
1.0/26/2o10
High Wind
35
0
0
Unknown
Cable
8/12/2oio
Thunderstorm Wind
52
0
0
Unknown
Lake Fremont
7/27/2oso
Thunderstorm Wind
52
0
0
$5,000
Clear Lake
7/27/2oio
Thunderstorm Wind
52
0
0
$5,000
Elk River
7/1-7/201.0
Thunderstorm Wind
61.
0
0
$100,000
Big Lake
7/1-7/201.0
Thunderstorm Wind
52
0
0
Unknown
Becker
7/1-7/201.0
Thunderstorm Wind
61
0
0
$250,000
Clear Lake
6/25/2oio
Thunderstorm Wind
52
0
0
Unknown
Elk River
7/1-s/2oo8
Thunderstorm Wind
54
0
0
Unknown
Santiago
7/1-s/2oo8
Thunderstorm Wind
65
0
0
Unknown
Elk River
7/1-s/2oo8
Thunderstorm Wind
56
0
0
Unknown
Big Lake
6/14/2oo8
Thunderstorm Wind
58
0
0
Unknown
Elk River
8/1-3/2007
Thunderstorm Wind
53
0
0
Unknown
Elk River
7/8/2007
Thunderstorm Wind
50
0
0
Unknown
Elk River
9/16/2oo6
Thunderstorm Wind
60
0
0
$100,000
Becker
7/31./2oo6
Thunderstorm Wind
55
0
0
Unknown
Zimmerman
6/5/2oo6
Thunderstorm Wind
55
0
0
Unknown
Clear Lake
6/5/2oo6
Thunderstorm Wind
55
0
0
Unknown
Clear Lake
6/5/2oo6
Thunderstorm Wind
50
0
0
Unknown
Elk River
9/21/2005
Thunderstorm Wind
63
0
0
Unknown
Becker
9/21/2005
Thunderstorm Wind
52
0
0
Unknown
Big Lake
9/21/2005
Thunderstorm Wind
52
0
0
Unknown
Elk River
9/12/2005
Thunderstorm Wind
52
0
0
Unknown
Clear Lake
8/1.6/2005
Thunderstorm Wind
50
0
0
Unknown
Clear Lake
7/25/2005
Thunderstorm Wind
52
0
0
Unknown
Elk River
7/23/2005
Thunderstorm Wind
52
0
0
Unknown
Zimmerman
7/23/2005
Thunderstorm Wind
52
0
0
Unknown
Big Lake
6/27/2005
Thunderstorm Wind
52
0
0
Unknown
Orrock
6/20/2005
Thunderstorm Wind
55
0
0
Unknown
Big Lake
6/8/2005
Thunderstorm Wind
52
0
0
Unknown
Sherburne County
12/12/2004
High Wind
40
0
0
Unknown
Elk River
7/21/2004
Thunderstorm Wind
55
0
0
Unknown
Clear Lake
7/21/2004
Thunderstorm Wind
60
0
0
Unknown
Elk River
5/9/2004
Thunderstorm Wind
50
0
0
Unknown
Elk River
4/1.8/2004
Thunderstorm Wind
50
0
0
Unknown
Clear Lake
4/1.8/2004
Thunderstorm Wind
50
0
0
Unknown
Page I C - 7
Sherburne County Multi -Hazard Mitigation Plan, 2020
or
Clear Lake
Date
7/14/2003
Type
Thunderstorm Wind
Magnitude
52
Deaths
0
Injuries
0
PropertyLocation
DaMage
Unknown
Elk River
7/4/2003
Thunderstorm Wind
55
0
0
Unknown
Big Lake
7/3/2003
Thunderstorm Wind
55
0
0
Unknown
Clear Lake
7/2/2003
Thunderstorm Wind
52
0
0
Unknown
Big Lake
6/24/2003
Thunderstorm Wind
5o
0
0
Unknown
Clear Lake
8/1.6/2002
Thunderstorm Wind
55
0
0
Unknown
Elk River
8/12/2002
Thunderstorm Wind
6o
0
0
$25,000
Becker
8/12/2002
Thunderstorm Wind
6o
0
0
$7,000
Princeton
6/24/2002
Thunderstorm Wind
50
0
0
Unknown
Becker
7/23/2001.
Thunderstorm Wind
55
0
0
$15,000
Clear Lake
7/23/2001.
Thunderstorm Wind
6o
0
0
$10,000
Zimmerman
7/7/2000
Thunderstorm Wind
55
0
0
Unknown
Zimmerman
7/7/2000
Thunderstorm Wind
55
0
0
Unknown
Sherburne County
11/1./1.999
High Wind
38
0
0
Unknown
Elk River
7/30/1999
Thunderstorm Wind
56
0
0
Unknown
Elk River
7/3/1999
Thunderstorm Wind
5o
0
0
Unknown
Big Lake
6/9/1999
Thunderstorm Wind
6o
0
0
Unknown
Becker
6/6/1999
Thunderstorm Wind
55
0
0
Unknown
Sherburne County
3/17/1999
High Wind
55
0
0
Unknown
Big Lake
6/26/1998
Thunderstorm Wind
61
0
0
Unknown
Big Lake
6/26/1998
Thunderstorm Wind
61
0
0
Unknown
Zimmerman
5/1.5/1998
Thunderstorm Wind
55
0
0
Unknown
Elk River
5/15/1998
Thunderstorm Wind
6o
0
0
$3,000,000
Clear Lake
8/2/1997
Thunderstorm Wind
6o
0
0
Unknown
Clear Lake
8/2/1997
Thunderstorm Wind
55
0
0
Unknown
Elk River
7/1/1997
Thunderstorm Wind
55
0
0
Unknown
Elk River
7/1/1997
Thunderstorm Wind
6o
0
0
Unknown
Zimmerman
7/1/1997
Thunderstorm Wind
6o
0
0
Unknown
Big Lake
7/1/1997
Thunderstorm Wind
95
0
1
Unknown
Zimmerman
6/28/1997
Thunderstorm Wind
50
0
0
Unknown
Sherburne County
1.0/29/1996
High Wind
64
0
0
Unknown
Clear Lake
5/1.8/1996
Thunderstorm Wind
65
0
0
Unknown
St. Cloud
6/22/1995
Thunderstorm Wind
56
0
0
Unknown
Sherburne County
8/25/1994
Thunderstorm Wind
0
0
0
Unknown
Sherburne County
8/25/1994
Thunderstorm Wind
0
0
0
Unknown
Clear Lake
6/14/1994
Thunderstorm Wind
52
0
0
Unknown
Sherburne County
6/1.6/1.992
Thunderstorm Wind
0
0
0
Unknown
Sherburne County
6/1.6/1.992
Thunderstorm Wind
0
0
0
Unknown
Sherburne County
6/16/1992
Thunderstorm Wind
0
0
0
Unknown
Sherburne County
6/1.6/1.992
Thunderstorm Wind
0
0
0
Unknown
Page I C - 8
Sherburne County Multi -Hazard Mitigation Plan, 2020
or
County__
Sherburne County
Date
5/29/1991
Type
Thunderstorm Wind
Magnitude
(Knots)
0
Deaths
0
Injuries
0
PropertyLocation
D ..-
Unknown
Sherburne County
7/11/1.987
Thunderstorm Wind
0
0
0
Unknown
Sherburne County
6/7/1987
Thunderstorm Wind
0
0
0
Unknown
Sherburne County
4/21/1.985
Thunderstorm Wind
0
0
0
Unknown
Sherburne County
4/21/1.985
Thunderstorm Wind
0
0
0
Unknown
Sherburne County
6/6/1984
Thunderstorm Wind
52
0
0
Unknown
Sherburne County
6/5/1984
Thunderstorm Wind
0
0
0
Unknown
Sherburne County
9/so/i983
Thunderstorm Wind
0
0
0
Unknown
Sherburne County
9/so/i983
Thunderstorm Wind
0
0
0
Unknown
Sherburne County
9/so/i983
Thunderstorm Wind
0
0
0
Unknown
Sherburne County
7/19/1983
Thunderstorm Wind
0
0
0
Unknown
Sherburne County
7/24/198o
Thunderstorm Wind
0
0
0
Unknown
Sherburne County
9/1.6/1978
Thunderstorm Wind
0
0
0
Unknown
Sherburne County
6/16/1978
Thunderstorm Wind
62
0
0
Unknown
Sherburne County
6/20/1975
Thunderstorm Wind
0
0
0
Unknown
Sherburne County
5/20/1975
Thunderstorm Wind
0
0
0
Unknown
Sherburne County
6/20/1974
Thunderstorm Wind
0
0
0
Unknown
Sherburne County
6/20/1974
Thunderstorm Wind
0
0
0
Unknown
Sherburne County
6/20/1974
Thunderstorm Wind
50
0
0
Unknown
Sherburne County
6/23/1971
Thunderstorm Wind
0
0
o
Unknown
Highest Value
Property Damage
$3,000,000
Table C - 4. All extreme flood events recorded by NCEI, 1996-& 'Location or Deaths Injuries 2019
=MProperty
County Damage
Sherburne County 9/12/2005 Flash Flood 0 0 Unknown
Elk River
6/24/2003
Flash Flood
0
0
Unknown
Sherburne County
7/10/2002
Flash Flood
0
0
$25,000
Sherburne County
4/22/2ool
Flash Flood
0
0
$2,000,000
Sherburne County
4/1/2001
Flood
0
0
Unknown
Sherburne County
4/4/1997
Flood
0
0
Unknown
Highest Value
Property Damage
$z,000,000
Page IC-9
Sherburne County Multi -Hazard Mitigation Plan, 2020
Table C - 5. All severe winter weather events recorded by NCEI, 1996-July 2019
Location..
County
Sherburne County
Sherburne County
Date
4/1-0/201.9
3/9/201.9
Type
Winter Storm o
Winter Storm o
o
Unknown
o
Unknown
Sherburne County
2/20/201.9
Winter Storm
o
o
Unknown
Sherburne County
2/7/201.9
Heavy Snow
o
o
Unknown
Sherburne County
4/1-3/2os8
Winter Storm
o
o
Unknown
Sherburne County
3/30/2os8
Winter Storm
o
o
Unknown
Sherburne County
3/4/2os8
Winter Storm
o
o
Unknown
Sherburne County
2/24/2os8
Winter Storm
o
o
Unknown
Sherburne County
1.1./1.0/2014
Winter Storm
o
o
Unknown
Sherburne County
4/1.6/201.4
Winter Storm
o
o
Unknown
Sherburne County
4/3/201.4
Winter Storm
o
o
Unknown
Sherburne County
3/1.8/201.4
Winter Storm
o
o
Unknown
Sherburne County
2/20/201.4
Winter Storm
o
o
Unknown
Sherburne County
1.2/4/201.3
Winter Storm
o
o
Unknown
Sherburne County
4/1.8/201.3
Winter Storm
o
o
Unknown
Sherburne County
4/1-1/2013
Winter Storm
o
o
Unknown
Sherburne County
3/4/201.3
Winter Storm
o
o
Unknown
Sherburne County
2/1.0/201.3
Winter Storm
o
o
Unknown
Sherburne County
1.2/8/201.2
Winter Storm
o
o
Unknown
Sherburne County
2/28/201.2
Winter Storm
o
o
Unknown
Sherburne County
3/22/201.1.
Winter Storm
o
o
Unknown
Sherburne County
2/20/2011
Winter Storm
o
o
Unknown
Sherburne County
sz/so/zoso
Winter Storm
o
o
Unknown
Sherburne County
1-1/1-3/201.0
Winter Storm
o
o
Unknown
Sherburne County
2/7/203.0
Winter Storm
o
o
Unknown
Sherburne County
1.2/23/2009
Winter Storm
o
o
Unknown
Sherburne County
1.2/8/2009
Winter Storm
o
o
Unknown
Sherburne County
1.0/1.2/2009
Winter Weather
o
o
Unknown
Sherburne County
3/31/2009
Winter Storm
o
o
Unknown
Sherburne County
2/26/2009
Winter Storm
o
o
Unknown
Sherburne County
1.2/30/2oo8
Winter Storm
o
o
Unknown
Sherburne County
1.2/20/2oo8
Winter Storm
o
o
Unknown
Sherburne County
4/s/2oo8
Heavy Snow
o
o
Unknown
Sherburne County
3/31./2oo8
Heavy Snow
o
o
Unknown
Sherburne County
1.2/1/2007
Winter Storm
o
o
Unknown
Sherburne County
3/1/2007
Winter Storm
o
o
Unknown
Sherburne County
2/23/2007
Winter Storm
o
o
Unknown
Sherburne County
1.2/31./2oo6
Winter Storm
o
o
Unknown
Sherburne County
3/1-5/2oo6
Winter Storm o
o
Unknown
Page I C - so
Sherburne County Multi -Hazard Mitigation Plan, 2020
LocationProperty
County--
Sherburne County
Date
3/1.2/2oo6
Type 1�
Winter Storm
Deaths
o
injuries
o
Damage
Unknown
Sherburne County
12/29/2005
Heavy Snow
o
o
Unknown
Sherburne County
1./21./2005
Winter Storm
o
o
Unknown
Sherburne County
1/1.2/2005
Winter Storm
o
o
Unknown
Sherburne County
1./1./2005
Winter Storm
o
o
Unknown
Sherburne County
2/1/2004
Winter Storm
o
o
Unknown
Sherburne County
1/24/2004
Winter Storm
o
o
Unknown
Sherburne County
1.1./22/2003
Winter Storm
o
o
Unknown
Sherburne County
2/2/2003
Winter Storm
o
o
Unknown
Sherburne County
3/1-4/2002
Winter Storm
o
o
Unknown
Sherburne County
3/8/2002
Winter Storm
o
o
Unknown
Sherburne County
1.1./26/2001.
Winter Storm
o
o
Unknown
Sherburne County
2/24/2001.
Winter Storm
o
o
Unknown
Sherburne County
1/29/2003.
Winter Storm
o
o
Unknown
Sherburne County
3.2/28/2000
Winter Storm
o
o
Unknown
Sherburne County
s/sz/z000
Heavy Snow
o
o
Unknown
Sherburne County
3/8/i999
Winter Storm
o
o
Unknown
Sherburne County
3/1-3/1-997
Winter Storm
o
o
Unknown
Sherburne County
s/3/1-997
Winter Storm
o
o
Unknown
Sherburne County
1.2/23/1.996
Winter Storm
o
o
Unknown
Sherburne County
1.2/1-4/1-996
Heavy Snow
o
o
Unknown
Sherburne County
ss/2o/s996
Heavy Snow
o
o
Unknown
Sherburne County
4/1.2/1.996
Heavy Snow
o
o
Unknown
Sherburne County
3/23/1-996
Heavy Snow
o
o
Unknown
Sherburne County
1/1-7/1-996
Blizzard
o
o
Unknown
Highest Value
Property Damage
Unknown
Table C - 6. All severe cold/wind chill events recorded by NCEI, 1996-Tulil 2019
Location.
County
Sherburne County
Date
s/29/2os9
Type
Extreme Cold/Wind Chill
Deaths
o
.
injuries
�.
o Unknown
Sherburne County
1.2/30/201.7
Extreme Cold/Wind Chill
o
o
Unknown
Sherburne County
1.2/17/2os6
Extreme Cold/Wind Chill
o
o
Unknown
Sherburne County
s/s7/2os6
Extreme Cold/Wind Chill
o
o
Unknown
Sherburne County
3/2/201.4
Extreme Cold/Wind Chill
o
o
Unknown
Sherburne County
2/27/201.4
Extreme Cold/Wind Chill
o
o
Unknown
Sherburne County
1/27/201.4
Extreme Cold/Wind Chill
o
o
Unknown
Sherburne County
1/23/201.4
Extreme Cold/Wind Chill
o
o
Unknown
Page I C - sz
Sherburne County Multi -Hazard Mitigation Plan, 2020
Location or
�.
County
Type
Extreme Cold/Wind Chill
Deaths
o
injuries
�.
o Unknown
Sherburne County
1./5/201.4
Sherburne County
1/1.4/2009
Cold/Wind Chill
o
o
Unknown
Sherburne County
2/19/2oo8
Cold/Wind Chill
o
o
Unknown
Sherburne County
2/1.0/2oo8
Cold/Wind Chill
o
o
Unknown
Sherburne County
1/1-5/1-997
Cold/Wind Chill
o
o
Unknown
Sherburne County
1.2/24/1996
Cold/Wind Chill
o
o
Unknown
Sherburne County
2/1/1.996
Cold/Wind Chill
o
o
Unknown
Sherburne County
1/31/1996
Cold/Wind Chill
z
o
Unknown
Sherburne County
s/s8/s996
Cold/Wind Chill
o
o
Unknown
Highest Value
Property Damage
Unknown
Table C - 7. All extreme heat/heat events recorded by the NCEI, 1996-10y 2019
Location.
County
Sherburne County
Date
7/20/2os6
Type
Excessive Heat
o
.
�.
o Unknown
o Unknown
Sherburne County
7/s8/2oii
Excessive Heat
o
Sherburne County
7/30/2oo6
Heat
o
o
Unknown
Sherburne County
8/4/2001.
Heat
o
o
Unknown
Sherburne County
8/1/2001.
Heat
o
o
Unknown
Sherburne County
7/30/2003.
Heat
o
o
Unknown
Sherburne County
7/29/1-999
Heat
o
o
Unknown
Sherburne County
7/23/1-999
Heat
o
o
Unknown
Highest Value
Property Damage
Unknown
Table C - 8. All
Elk River
Highest Value
Property
Damage
events recorded
9/zs/zoo5
the NCEI, 1996-July 2019
•
roOffity
Damage
o , Unknown
Unknown
Page I C - 12
Sherburne County Multi -Hazard Mitigation Plan, 2020
Appendix D
Adopting Resolutions
PageID -z
Sherburne County Multi -Hazard Mitigation Plan, 2020
Resolutions to be added to Appendix D by Sherburne County following final approval of the plan by FEMA.
Page ID-2
Sherburne County Multi -Hazard Mitigation Plan, 2020
Appendix E
Steering Committee Meetings
Page I E - 1
Sherburne County Multi -Hazard Mitigation Plan, 2020
Minnesota
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Mitigation Update Project
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7/3/2019
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Sherburne County Multi -Hazard Mitigation Plan, 2020
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Sherburne County Multi -Hazard Mitigation Plan, 2020
Project Timeline
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Estimated Time -line
Our Recent Experience
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Sherburne County Multi -Hazard Mitigation Plan, 2020
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7/3/2Ui9
Sherburne County Multi -Hazard Mitigation Plan, 2020
Sherburne County
Multi -Hazard Mitigation Plan Update
May 31, 2019 MHMP Planning Team Meeting #1
Sherburne County Sheriff's Office (ECG} — FA River, MN
1 &.00 a.m. —12:00 p,m.
Nleetlnre 5uTnmpry
On Friday, May 31, 2019, key county, city, and township representatives, as well as other stakeholders
were convened to participate in a Planning Team Meeting for the update of Sherburne County Multi -
Hazard Mltigatia+ Plan (MHMP), The meeting was facilitated by the University of Minnesota — Duluth
Geospatial Analysis Center (GAC) project team who are leading the update of the Sherburne County
MHMP. A total of 26 people attended the meeting.
the opening presentation covered 6 key a real:
1. The purpose of hazard mttigabon planning,
2. the role & responsibilities of the Planning Team.
3. An overview of content in the MHMP {County physical & social profile, Asset Inventory, Hazard
Assessment and Vulnerability Analysis, Capability Assessment and Mitigation Actions).
4. Review and discussion of natural hazards that pose risk to the County, including consideration of
the folkrwing:
• How has the risk to severe natural hazard events irxreased or decreased siw* the last
plan?
Are there jurisdictional variations in risk?
• Are there iacul vulrwmbifr'ties to consider?
Have there been changes in development?
Planning Team Discussion Notes;
Sever Winter Storms — No noted changes in the last 5 years. Severe winter storms
occur reguiarty in Sherburne County. The need for backup power was noted for bate
local gay ernrnents (for p)oces like City Ball, Fire Halls) as well as locos residents in the
event of extended power ou tog es,
• Severe Summer Storms - Sherburne County was greatly impacted by one of the earliest
recorded tornados in the state of MN in March, 2017. Thes form caused damage to
private properties, trees, powerlines and localraadways. Main concerns for severe
spring & summer storms are making sure that more people are signed up for
emergency notifications, as welt as constructing or retrofitting storm shelters orsofe
rooms where there are people vulnerable to high winds severe storms or tornado
events (i.e., campgrounds, mobile home parks).
■ Floodinr7/Erosion — Ffooding/Erosion was felt to be a higher concern with the increase
In high•predpitation events in the last S yeam in particular high water below the Fi'k
River dam is eroding the banks, needs to be addressed.
Page IE-6
Sherburne County Multi -Hazard Mitigation Plan, 2020
• Extreme Temperatures - the winter of 10I& presented extended periods of below zero
temperatures. Encouraging homeowners to be prepared with generators was noted in
Un event of extended power outages.
■ Emnsilon, Landslides S. Land Subsidence-Erosiorilland subsidence was deemed lobe a
higher risk since the 2013 plan, due to an increase in high precipitation events-
0 Wildfire - Wildland fires were considered to be a higher risk since the last plan.
Considerations included more development pressure {people building in higher -risk
areas). Working with unincorporated areas on defensible space was noted. the City
of Elk River already requires a 30'rone of defensible spare with new development.
• Drought -No noted change in the last 5 years.
Dam Failure -Noted as a law risk in the County.
5. Review of mitigation strategies and examples of related mitigation actions.
b. An overview of the FLMA Hazard Mitigation Assistance (HMA) Grants program.
Following the presentation, a facilitated Mitigation Action Working Session was held. Participants
discussed the natural hazards of concern to their communities and filled out Mitigation Ideas
Worksheets to identify new, lunsdictionally-specific mitigation actons to be Included in the MHMP plan
update. Mitigation actions were required to fail within one of the 5 mitigation action strategies:
1. Local Planningand Regulations
t. Structure and infrastructure Projects
3. Natural Systems Protection
4. Education and Awareness Programs
S. Mitigation Preparedness and Response Support
Fallowing the Mitigation Action Working Session, the group then discussed the upcoming process and
anticipated timeline for engaging the public and other key stakeholders in the plan update. Meeting
attendees were told that they would be contacted for additional information and kept informed an the
upcoming steps in the planning process, including development of local mitigation action charts and
review of the final draft plars.
Attached to ttds meeting summary are the following documentation Items;
5-31-19 Planning Team Meeting Stakeholder Invite List
5-31.19 Sherburne County Meeting Email Invite
5-31.19 Meeting Agenda
5-31-19 Meeting Sign -in Sheets jtyped & scanned)
5-31-19 Power Point Presentation Slides
5.31.19 Meeting Handouts (Mitigation Strategies, HMA Grants, Mitigation Ideas Warksheet)
5-31-19 Mitigation Ideas Working Session Notes
Meeting Summary Prepared By. Ronnie Nundrieser, I/M0 Project Team
Page I E - 7
Sherburne County Multi -Hazard Mitigation Plan, 2020
Sherburne County 2019 MHM€' Update
5-31-19 Planning Team Meeting Stakeholder Invite List
Following is the list of stakeholders that were invited via email to attend the Sherburne County MHMP
Update Planning Team Meeting #1 held on May 31, 2039.
COUNTY CONTACTS
Am*: County Administration
Marne: Dan Weber
County Position: Assistant County Administrator
Email dan.webergmsherbun(e.mmus
Area: Public Works
Marne: Andrew Witter
County Position: PubfK Works Director
Email andrew.witterC&sco.sherhunre.mn.us
Area: Pfanningand Zoning I Parks)
Namic Nancy Riddle
County Position; Planning and Zoning Director
Email nanc�,rlddlec.shefre.mn.us
Area: Health and Human Seryices
Name. Cody Engelhaupt
County Position: Lead Community Health Coordinator
Ernail code.engelhaupt(Wco.sherWnre.mn.us
Area: GES (County)
Marne: Weft Forbes
County Position: GIS Coordinator
Email brett.(of besWo.sherbun re.mn.us
Area: Assessor (County}
Name: Greg Olson
County Position. County Assessor
Email: & .olson2Eo_sherbunre.mn.us
Area: Attorney (County(
Name: Kathy Heaney
Courtly Position: County Attorney
Email kathieel+.heaneu@_oo.sherbu Dfe•mn.us
Page I E - 8
Sherburne County Multi -Hazard Mitigation Plan, 2020
CITY CONTACTS
CITY OF BECKER
Area: Law Enforcement/Emergency Management
Name: Brent Baloun
Position: Chief of Police / Director of Emergency Management
Emaik us
XkfK.�:II •:Tay
Area: Law Enforcement/Emergency Management
Name; Joel Scharf
Position: Chief of Police i Director of Emergency Management
Emaik Lscharf bigIaket?olirgM
Area: City of Bing Lake Fire Department
Name; Ken Halverson, Fire Chief / Seth Hansen, Asst. Fire. Chief
Emaik bie1akefiredW3iefakgh ores
CITY OF CLEAR LAKE
Area: Fire/Emergency Management
Name, Craig Miller
Position: Assistant Fire Chief / Deputy Director of Emergency Management
Email: Srjig mlller@builtby#sens.com
CFTY OF ELK RIVER
Area: Fire/Emergency Management
Name: Mark Dickinson
Position: Fire Chief / Director of Emergency Management
Email: mdickinsonC_elkriveimn.xvv
CrrY OF ZIMMERMAN
Area: I ire/kmergency Management
Name; Ryan Maloney
Position: Fire Chief / Director of Emergency Management
Emaik simmermanfelPixoom.net
1. Baldwin
2. Becker
3. Big Lake
4. Blue Hill
5. Clear Lake
6. Haven
i. Livonia
8. Ctrrock
PageIE -g
Sherburne County Multi -Hazard Mitigation Plan, 2020
9, Palmer
10. Santiago
Other Stakeholder Contacts
MN Dept. of Natural Resources {FonestryI
Jason Kern, Resource Protection Program Forester
Ja-son.kern@state.mn.us
NI Dept of Natural Resource& (Forestry)
Paul Talbot, NRF fire Response Lead
Paul, to loot CWsta te. m n. in
City of St Cloud Emergency Management J Stearns County Emergency Management
Erin Tufte, Emergency Management Director
erin tuftelko.stearns,mnms
City of Prinfeton - Imer$ency Management
Ran Lawrence, Fire Chief
Email: frdchiefl 'ncetcrnfirernn.corn
Sherbur ne National Wildlife Refuge
17631 389-3323
USDA - Rural Development Community Programs
Brett Repulske, Program Specialist
brett.rcoulsketmusda. Rov
Page I E - so
Sherburne County Multi -Hazard Mitigation Plan, 2020
Fmm: Kvle B�efFle
To; Dan Weber: And- Witter; Nancy Riddle; Dave Lucas: CodyEngelhaunt: Drett A. `urges Gregdsoru Kathleen
Heaney: dii"a.becker•mn.us; ischarf&t gI49Miice,mrru SamCIson fsdsm&bidakaoolice.cm) Craig Miller;
cmckay4lenail .gam: Mark Dickinson; Farm Sr tt: 2imm emman Fwe: "Baldw rfF re 2CQ st0fice.mC
Hausauer. Erin; m1dvintm26&aw K;tofSce.neR: her_keetvs+rxhioE�ti'"rrdstream.net:
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Cc; Derek Baas: Bonnie Ha n&iesser - Dan An&en• Joel
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Subject, Sherburne County Hazard Mtigation Planning Meting
Date: Friday, April 26, 2019 9!56:51 AM
Attachments; r.31-19 r17urne f-W Ma #1 lnvaationod'
All,
Sherburne County is underway with updating our Hazard Mitigation Plan. We are requesting
that you attend a planning meeting that will be hosted in the Sheriffs Office EOC by Emergency
Services. Please seethe attached flyer for further information. The meeting is set for Friday
May 31, 2019 from 10:00am-12:00pin andwill be facilitated by local and state
representatives who are involved with the Hazard Mitigation Planning process. Please feel free
to email or call with any questions; several of you partic ipate d b ack in 2013 when we did our
last update. As a reminder of why this is important when this is all complete cities within
Sherburne will need to adopt the county plan (we all did this in 2013, that's why your input
and partnership is needed and appreciated) in order to maintain eligibility for certain disaster
assistance monies and hazard mitigation funding for projects.
Trunk you,
Kyle Breffle
Dame tot of Emergency Semmes
Sherburne Caurty SheriVs Office
13880 Business Center Drive NW
Elk Riyer, MN 55330
p 7W-765-3531
'+ConrrmiImPnt ib Semis@ wr k hetegrAy ord Pridar"
�mvw,.co.d,rerburne.mn.uVsheriff Facebook: QSherbC c Sheriff
Page I E - si
Sherburne County Multi -Hazard Mitigation Plan, 2020
SHERBURNE COUNTY
201k) MLJLT1-HA/ARD MITI(;Af1oN IrIAN 011DATF - MtFFTING INVITATION
Greetings,
Your prewnce is requested at a Planning Team Meeting for the update of the 2019 5herbume County
Multi -Hazard Mitigation Plan- You are requested to participate in this vital meeting because you have a
WAition of adnimistrative or departmental tesponsibdity within either the County, a mtuutrcipal
government, or are a key stakeholder related to the planning process.
Meetinf Detail
Date: Friday, May 31, 2029
Time 10-.00 a.m. - 12:00 p.m.
halation: Sherburne County Sheriffs Office - COC
113900 Business Center Drive, Elk River, MN 55330j
About the Plan
The update of the Sherburne County Multi -Hazard Mitigation Plan (MHMP) is a requirement by the
State of Minnesota Department of Homeland Security & Emergency Management (HSEM) as well as the
Federal Emergency Management Agency {FEMAj every 5 years. Our 2013 plan is due for an update and
our planning Is currently underway. The pLan addresses the natural hazards that face Sherburne County
and will result in the identification of mitigation actions that will help to reduce or eliminate the impact
of future hazard events, such as flooding and severe winter or summer storms.
Your participation in this plan update is important for several teasons:
1. you will help to identify critical mrtigatton projects to implement at the county / local level, and
how they can be rntegyated with existing plans, padities, ar project efforts.
2. Pa rt itipating jurisdictions will be cliWble to apply for FEMA hazard mrtlgatron grant lundirtg.
3. Mitigartion planning is necessary to keep our communities resilient against future disasters and
reduce the costs of recovery.
4. FFMA requites documentation of how local government and key stakeholders participated in
the planning process.
During this meeting we will review and rank the natural hazards that pose risk Sherburne County and
individual communities and discuss a range of mitigation measures tot local implementation. the
meeting will be fauIttrted by personnel from the Unrvt-rsity of Minnesota Duluth - Geospatial Analysis
Center team who are working closely with us Dn this project.
Please RSVP
Please RSVP rack to me to indicate your attendance. If you cannot attend, please plan to send someone
in your stead to ensure representatran- You are encouraged to bring a team of additional staff from
your county department, municipality, or associated stakeholder organization.
Page I E - 12
Sherburne County Multi -Hazard Mitigation Plan, 2020
Thank you,
Kyle Breffle
D#ecmw of Exnerpevrey 3ervkes
aherpume Cour#V Sherifrs 010c
13806 "roes% Canter Drve ?M
Elk River, MN W30
p ?63-7 0.3531
'Ommidirme eY i0 Se+vke tw" Inw9my and PrWe"
wvr.ea+sommmen*� . I � n «ecetook asbort<05hwriff
Page I E -13
Sherburne County Multi -Hazard Mitigation Plan, 2020
Sherburne County
lulti-Hazard Mitigation Plan Update
Planning Tea m Meeting
Friday, May 31, 10:00 a.m. — 12:00 p.m.
ierbtirne County Sheriff's Office — Elk River, MN
Presenting,
• St arey-St ark, DirertOr, University of Minnesota —Duluth, Ge uspati a I An alysi s Center
Bonnie Hundrieser, Hundneser Consulting LLC (UMD ProjertTeam)
ftpada;
1. Welcome and Introductions
2. Overview of MHMP Update
- PLrrpose of the Pfaq
Role 4 the Rai-eping Team
- Conterrr of the Plan
- Re via w of Wtu-rd HazarJs
I RevleWOf MitigatiOn Strategies
-1. 0vE!ryiew of FEMA Hazard Mitigation Ass istante (HMA) Grants
S. h,+litgationACtiDn WOrkingSession
Po i rwt of Co matt,
Kyle BreffIe
Sherburne CDuntyEmergenry Management Director
Phone: 763-765-3531
Email; kyle.brefflefEr7 she-L-erne Tr.US
Page IE-14
Sherburne County Multi -Hazard Mitigation Plan, 2020
Sherburne G
5/31/19 MHMI
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Page I E - iS
Sherburne County Multi -Hazard Mitigation Plan, 2020
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Sherburne 6U-nity
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effort to reduce Lose of life
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Page I E - 18
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Sherburne County Multi -Hazard Mitigation Plan, 2020
Who the Plan Corers
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2
Sherburne County Multi -Hazard Mitigation Plan, 2020
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3
Page I E - 20
Sherburne County Multi -Hazard Mitigation Plan, 2020
Review of Natural Hazards that
Pose Risk to Sherburne County
The MH Mf upd*te n444h I
Isrclude s review of the sollowksa.
• Hraaha+thr Fv*In Vwre
MM Ural tWJ'Md evedRt am re•asrd
Mara Rts4 FaCors.
or ddrertmrd%.no thr ra" prad7
Rrobabllrty &
• Are Ihere itrrasrktr,IFM*
SeverrtrOmoactsl
rdnorwn in tHho
• Ale l here br of mhk ot%W el I
corrsder7
• Haw Owst hppe rllwrvm on
d—Averyxrrt
,Severe Summe
Storms
• Prabowiry fth
• Pts"re IhrPaers:
P2aapx ra Wr Srfeer
4rsral
• ftwrrag. %a iwds b
Ihoprrty
• CQICMIMV urr
Atli s1rrwri
al pY Iakrn & ll`1V14ti,
dnwfwd PQ W M 4,wn $
erte•drd Power
trrrmt ra tnn•a•. arrd
rrd i ar hra rlkt
Extreme Temperatures
1phe6ilMry heodMete
• IIIIIrWblle innocrs.
DON"W : ra i 4. 5.44 q
4Prtk.*-d eryowre%
Pbaenrl.r. rwIIo
rthra� irAr at[e Wl4r•
.vM "asses 4ayywtim
• CWCdiMr FUerb rods
as r d proAde
tneprary rnari earn
aNdhoilRfW
wslneraklr pcpJar fain
Severe Winter
Storms
• ftabawNty, High
• Powtor #"pour.
no to tde Sales t•
• IrcMrd Irvra�r^. snot
cnfapwl
• irrterrutsSiun sP
Trwo"lowar arrd
Fff-ppr W'Wticm
Damage. m Nnperty
+ C'm 06.9 arasar n h
ati rkawrred pnMt► inew
A •opnded pawre
ourarn I.D Irurus and
CmItal fjWrtm.
Flooding
flwan w iFws rr e
• Prahrafvlay. NO
• pmvboe kgXR11.
• .7msw to jfe Sale y l•nad
µrswp' atrrwHnd of hrwr
• �rewnsp,,wnto TranW-ram
and [r oeney Sawx.sw
• Flao$.% d;3 lao4 and lrrrt
honrni 1 to rarsd run -um
• Damage 18 4W& k Property
• [aarmil" tTfarta W.I. M
g921HM faoure or dam
FirRl r'K dmoorer> l of
residents.
Page IE-21
6/2112019
All.'C P
STORM
WARNING
t
'1
Erosion, Landslides & Land
Subsidence
ProbablR:✓ M4040ate
Poctdhtr knpoas-
+ Fr C+elr.rr Ur fr6Pn{,
i:rwrri..?nks. r9vVrt►arlk5,
roasial Iab edpez
• SwM yr a rnrd to bker
" 04"W"to AVUporty W
'IRrrN MI Ank of 1100tr
• Cearoam if ffe r suCh A.
"wad csosutes and rrep0 ed
Sloan Mat er %V%Iem% lr r.m
rertimrrrtt krdd
4
Sherburne County Multi -Hazard Mitigation Plan, 2020
Wildfire
+ probeahVty: moderaaa -
• Paora�r anpaida
' ttaaear m ttta rlatMy leOgas
in woo" awl
tins of re.eV SxWar4W* and
'M1as oral Rrtflrrca
• Defre� to R*m&A Prinia"
• [memi la f 4YON %Ke a+ all
wilnr pdkinvr, n.rd to
eetenled evasveuan.
Dam Failure
+ P' . -, I _
• fie+* i4 iiiM 4lriF
(dlc,ltmv+aen rradall¢si
+ Ltleaired 1loodrrla _ _
Mitigation Strategies
1. Local Planning& Regulations
L Structure & lnfrastructure Projects
3. Natural Systerm Protection
4. Education and Awareness Programs
S. Mitigation Prepatedness $ Response
Support
6/2112019
Drought
• Aababraril maderaer
I N''
• Aftwble Awps[ts:
• I.Irwttit*k Kid w w
Irsc.ercr% mid bkey
• IMJ.xfMAP kulnaral hafa t
� - -
• emcodng f flees Midi as
`-
,rr r_. d d.rnga Tv wadaie
; }
Review of Mitigation CapabiiittWs
Mufti -Hazard Mitigation Plans requi►ethat each
jurisdiction must document the existing authoritim
pooches, programs, and resources to place for
mitigation.
+ What plans and praparns are in Piece to support
mityation against that harard?
• What program gaps cr dettdvaies exist to suppcsrt
mllill itipn aprnst that hararO
STRATEGY 41
Local Planning & Regulations
These actiom
' (.J" r.kwm.w ice+
include goveannsent
ere d u e rNJrw+rw
autharttiell, polinas,
` P6lr itrr ed ry rw a
or codes that
' �d'l'nelydctiard.nk.r„Irlee
Influence the way
+µSO nuy
land and buildi"45
• calm ow"'W Rr.UlgSys:lrrn
are developed and
APICArnmuruir
• C�rnai rtK.rhermnt pngralnt
built-
. owrf %PA_ W. uas.t.,rr
•Sir. A~r 1rdrw
• U.W'J".%N nl�IrelprlVrll
iolMUi FrNY Alin nlNinr p6n.
• Vci>tk hime �wrl :rrnFm r I•r
r.eten h..s
naiarsaaAAAAM,
Page I E - 22
Sherburne County Multi -Hazard Mitigation Plan, 2020
STRATEGY 42
Structure & Infrastructure Projects
The" rrtlons Involve
meAlYlrti rsNting
flll avuetc.rei end
+nfrastrutturs to
pO■rr a'fwst them It mtt a
mooed or remove
them horn rh.ea"d
III Ihl3 type of action also
Fnrof-wt rtlfyrdta to
LOn>1t4K[ �I�!
ctructrp b ►adrer
theimpaltOitritafd�,
AC
trsiGrn n ltw
orrne+ew
Utpty WoWWqaWft
• ��rrtrAtsfti., rrr'ui
• Rmdn�t an3 r!m+u•QwAh
m nra aelr•nixt
• :�t+lr rerrf.arl�wa�r �.�
' ansasf Irkte •'k reo�
• arle Bunn fnnwumtrucdcnu
f�7igrro-.y
• ctril+lnlaae4ruL9weti�eo"
August, 2012 — 1*' school based
tornado safe room (Wadena)
A
Power Line retrofit/burial
6/2112019
CommunaV Safe Rooms
Alarlerto-Deer Creek School, June 172010
Green Infrastructure Projects
STRATEGY #3
Natural Systems Protection
Them are •titans
• rldoAmian Lcurgld syhrtlrll
that mini mfae
FivadpWnBMd1'.nwnowrWv
damage and losses
retemanra
and alvn pr eS F ve «
" Swe rn"Arww"
@start tiW
'Forest t)antw spr
edurUnncuons
of nrlUfal
"�
Systems,
" CC "q Fl+- r n PiflfYAlq
" {iWANld; rs—
pl a vtlion
" Aquifer 4mag• & 4ecr.Vrsy
" Hood t*w and 3t wage
�Ialilr 6+r,rin
Page I E - 23
1;'
Sherburne County Multi -Hazard Mitigation Plan, 2020
Natural Systems Protection
examples
ti
5121.1201$
STRATEGY i#4
Education & Awareness Programs
These are ac mns to
• Fuc or Ir. L "• spm
• Wrhsw.40 map+mc rrmn..snr
info m and educate
s�yi „e,ry o vwrl
Eftuens, elected
iyvmrrber of Bryn �p r wa.sat.
officiak, and
property crwnars
' rraar raysta MiIKk—n
ha;aeds
` PMMfft"r of MLIP ,.jMen°
about and
pft+v"ty ®w"ft
Wm ntial Wo" to
. -T,,A Amu rrt oe•10,"P-
md igato them.
• pnesensaocrs m WIC" groups or
rryrrrrenuvp ar�noarons
• Ma lnp to.r%as rgsr Mum pane
MNs
• MYrt tormaerary► we.
Education & Awareness Program STRATEGY #5
Examples Mitigation Preparedness &
Response Support , Emergency otaeratrmisPlan
Thrs is a State of • flood fi�hT Nam and
M'nnemAj rngtig,mran Ompart:dnlss Med5ffes
stretepy with the micro , Oa,n nne•lencv action plats
of crsverIng ernes$rncy
peapared mess actions + (tner Wai ru ng Sy vomh
'! fhdE argee[t klrand (I.e' COdrRed, Enl+Ymrdye,
proprrtY pnorto, during Wan*erg s "m)
and Mnrnedialely a Vf a . G.r�alof t at,up per
disaster or futtard everrt_
. + IIVY5 Storm Spptfer Trirnirrg
_ Fhtw xrmrr rrs ryoiaur ' Trair'v: and aducatio�r for
rnt aam&dnrd �_ IauY eleC.ed offii[ials and Wy
° •�. -��. twf-.upWu+f ^rAxtron of rr+r partners
rJksisda naa �p FWflt+ • Exerosm to tnt uFabilhim
Mitigation Preparedness &
Response Support examples
f Code RED
c 'r
0
Page I E - 24
5-Year Mitigation Action Chart (MAC)
Sherburne County Multi -Hazard Mitigation Plan, 2020
MAC Development: 2019-2023
• Pwr Mil j,,eicn Art ran A irw 1 F F`tl
• [owtitrCapabldres Acsrt—.w
" tr%d 06"goton Surest .
• A.drMien•i Mnrierirn Acing Id.w pwdi—d dtrrn ON
nn.n.rna'.� MWwrit xt
• Ta 14 S1i-0 IU,wd N%1e(Atrna Rao
• MDH ( 1-wr Pmflcs i MKS Veined hit dm f11rne4
Adap. aean) ;r an cFnes
HMA Eligible Project Types
kr op ty At hurt UUnl rf et!, ,,I -, l Ai,IUi atiee
• Sell Room Behold a Omow' rut Sien
fMreda trmirrnaliitiaetfrm
• Grsen ltrhabtruttnre
• I+Hrastrursure RaV of is fdt&ty 3Yr`enx, Feud eraland
M ar,Iw tocal axed i Mod RfAu ttIOn P rojecta
• WIM N& KaVh%eti0"
.A i 'Str 6i Jig I—
• S VettMt inrtrabw Proyech
Mitigation Action Working
Session
• Regrew feedback from Sherburne County 2019 tM5
Report,
• the the MolVtion ideas Warisheet for new
Mitiption projects Icaunty f local se•relj
Consider prolect9 that may be ehRnble for F(MA
HMA grant fund ring,
Page I E - 25
6/2112019
FEMA HMA Grant Program
A currant and adopted M KMP
rs required for elit+bilRI
r
t:IXrble apocants tacai
Goeernmant Icounty, cMas),
Tribal Gic%vrnrnent,and private
non -profits
Cost5ham 75ty2s%
HMGP
PDM
EfieIble vow" mutt be
FMA
ndentthed in ttre lava MH MP
bummol PNOMM rrr*Wrae C—ft nr»••-r rm� -+a+ r•••wry
�.... � ��..... i ...—.ram � •..�.,.� r...w
M3M
b'4 1 to
woo"P_ 1alX II
Next Steps in MHMP Process
• DreftlMiililption Action Charts will be developed.
• Fdkr*-up will be conducted as necessary
• UMCI wldl be working on the full draft plan with the
County
• 2 HMP Planning Team meetmg for MAC Review
intimated Fall, 20191.
• Completion of draft via and public review period.
I;
Sherburne County Multi -Hazard Mitigation Plan, 2020
Mitigation Strategies & Action Tyges
Following are the five types of mitigation Strategies that will be used i n the update of the Multi -Hazard
Mitigation Plan with examples of related mitigation actions. Minnesota HSEM recommends the use of
these mitigation strategies to be in alignment with the State plan and those recommended by FEMA.
The first four strategies listed are taken from the FEMA publications Loco! Mrhga;ion PktortmV
Handbook (2013) and Mrbgation ldeasz A Resourre for Reducing Risk to !Natural Hazards (zoz3). The fifth
strategy type wasdetermined by Minnesota HSEM for use within the state.
These strategies will provide the framework for identification of newturisdictional-level mitigation
actions for implementation over the next 5-yea, planning cycle.
These actions include gavemn-went
Local planning authorities, policies, or codes that influtme
and Regulations the May land and buiIdingsare developed
and built.
These actions involve modifying existsng
structures and infrastructure to protect
t hem from a hazard or remove them From a
Structure and hazard area. This could apply to public or
infrastructure pfivate structures as well ascritical facilities
Projects and infrastructure.
This type of action also involves projectsto
tonStfuct manmade :tructufes. to reduce
the impact of hazards_
Page I E - 26
• Curnprenens.qF plans
• Land use ordina aces
• Planning and Zoning
• BviId4ng codes and enforcernerR
+ F Food pis i n or d inanc es
• NFIP Community Rating System
• Capital improverrsent programs
• Open space preservat ran
Shoreline codes
• $torrnwater management
regulations and master plans
+ Mobi ie home park compliance
for storrnshelters
• Property Acquisitions and
elevations of structures in Rood
prone areas
• Util ity u ndergrounding
■ Structural retrofits (i_e.., metal
roof's)
• Floodwalls and retaining walls
• Detention and retention
structures
• Culvert Installationi'Modifitation
• Roads & Bridge ink reduction
+ Safe Room (New construction or
Facility retrofit)
+ Green Infrastructufe Methods
Wany of these rypes of actions pre
prore€o chile forfunding thrpvgh
FEMA HMA grant proyrams.
Sherburne County Multi -Hazard Mitigation Plan, 2020
Natural
5ystems
Pro teetion
Education and
Awarenes-s
P ro grams
Mitigation
Preparedness
and Response
Support
These are actions the minimize [far-.ktge
and losses and al---- preserve or restore the
funct+ores of natural systems
These are actions to inform and edueate
citizens, elected of6c�als, and property
awners about hazards and potential Trays
to mitigate there. These actions may also
,rxlude participation in national programs,
such as Star mReady or Firewise,
Communities. Although this type of
mitigation reduces risk Iessdorectly than
structural projects orregulet iOno it is an
-mpciftant foundation, A greater
onderstanding and awareness of hazards
and risk among local officials, stakeholders,
and the public is more likely to lead to
direct actions that support life safety and
lessen property da m.Ne,
Thises a State of Minnesota mitigation
strategy with the intent of covering
rnsergerncy preparedness actions that
protest lice and property prior to, during,
and immediately after a disaster or
hazatd event_ These actrvvties are
typically not conswdered mitigation, but
support reduction of the effects of
damaging events.
Page I E - 27
■ Soil stabilization for sediment
and erosion control
• Floodplam and Stream corridor
restoration
• Slope management
• Forest management (defensible
space, fuetls reduction, sprinkler
Systems)
• Conservation easements
• Wetland restoration and
prewrvatron
• Aquifer Storage S Recovery
• Flood Diversion and Storage
Marry of these types of actions are
p,ro)Kts eligible for furxlrrrg through
FE1NA 14MA grant programs.
■ Radio or television spots
■ Websites with maps and
information
• Social media outreach
• promotion ofsign-up for
emergency warnings
r Real estate disclosure
■ Promotion of NFIP insurance to
property owners
• Presentations to school groups
or ne+ghborhoodorganizatsons
• Mailings to residerd,tn hazard-
prone arras,
• N W 5 5tofmReady Program
• FireMso Communities
Some of these types of oct*ns may be
projects eGgibie forftm&nq through the
FEMA HMA_ 5 Permt hritiati we P_rwam
■ Emergency Operat+onsPlan
■ Flood fight plans and
preparedness meawres
• Dam emergency action plans
■ Emergency Warning Systems
(i.e., CodeRed, warning sirens)
■ Generator backup power
■ NWS 5tor m Spotte r T ra in in g
• Training and education for local
elected officials and key
partners.
Sherburne County Multi -Hazard Mitigation Plan, 2020
+� titale of %linnevda
HSEM dand Smvmr of Public• crmm
I)itii�iun ufftnmclynd !:rvrilr teal 1':mrr�ata-► lhuirax•inrnt
•••r•� w�-••- •-.a^ 445 %11nnt+wtt Sheet, Sutite22.3
!tit. Paul, Nil\ 55101-6223
HAZARD MITIGATION ASSISTANCE
Hazard Mitigation Assistance (HMA) grant programs provide funding with the aim to reduce or eliminate
risk to property and loss of life from future natural disasters. HMA programs are typically a 75%j25%
cost share program. The federal share is 75% of total eligible project reimbursement costs. The local
applicant Is responsible for 25% of the project costs. The amount of IIMGP funds availability is based on a
perceni of Public Assistance provided by Federal Emergency Management Agency (FEMA).
• Hazard Mitigation Grant Prommm (HMGP) funds assists in implementing long-term hazard
Mitigation measures following a Presidential major disaster declaration.
• Pre -Disaster Mitigation (PDM) provides funds for hazard initigation planning and projects on an
annual basis.
• Flood MiliCal,ion AssjsLjP.ce (FMA) provides funds on an annual basis to reduce oreliminate risk of
flood damage to buildings that are insured under the National Flood Insurance Program (NFIP).
Who is eligible for grant funding?
All applicants must have or be covered under an approved Hazard Mitigation Plan. Eligible applicants
Include: State and local governments; certain private non-profit organizations or institutions; and Tribal
Communities
What types of projects can be funded?
All projects inust be eligible, technically feasible, and cost-effective. All projects are subject to
environmental and cultural resource review. Examples of projects include:
• Advance Assistance maybe used to develop mitigation strategies and obtain data, including for
environmental and historic preservation compliance considerations, and develop complete project
applications in a timely manner.
Aquifer Storage and Recovery (ASR) projects serve primarily as a drought management tool. but
can also be used to reduce flood risk and restore aquifers that have been subject to overdraft. The
concept is to capture water when there is an abundant supply, store the water in subsurface aquifers,
and recover water from the storage aquifer when needed. Storing water underground can help
protect it from pollutants, evaporation, and weather events.
• Floodplain and stream restoration (FSR) projects are used primarily to reduce flood risk and
erosion by providing stable reaches, and may also mitigate drought impacts. FSR project-s restore and
enhance the floodplain, stream channel and riparian ecosystem's natural function. They provide base
flow, recharge, water supply augmentation, floodwater storage, terrestrial and aquatic wildlife habitat,
and recreation opportunities by restoring the site's soil, hydrology and vegetation conditions that
mimic pre -development channel flow and floodplain connectivity.
r Flood Diversion and Storage (FDS) projects often are used to reduce flood risk, but also can be used
to mitigate drought and improve ecosystem services. These projects involve diverting floodwaters
from a stream, river, or other body of water into a conduit such as a canal, pipe. or wetland and
storing them in an above -ground storage facility. Water Is then slowly released, reducing flood risk,
DPS•HSEX I flacam6er 3)t9
Page I E - 28
Sherburne County Multi -Hazard Mitigation Plan, 2020
• Green Infrastructure Methods area sustainable approach to natural landscape preservation and
storm water management. Include in a h4ible hazard mOdgatfcoM ar:tivities as well as provide additional
ecosystem benefits. Ecosystem -based approach to replicate a site's pre -development, natural
hydrologic tunction. Benefits include: Increase water supply, improved water quality, can be scaled to
Size and designed to fit site conditions.
• Property Acquisition and Structure Demolition or Relocation - The voluntary acquisition of an
existing at -risk structure and the underlying land, and conversion of the land to open space through
the demolition or mlocation of the structure. The property must he deed -restricted in perpetuity to
open space uses: to restore and/or conserve the: natural floodplvin functions.
• Retrofit Flood -Prone Residential Structures are changes made to an existing structure to reduce or
eliminate the possibility of damage to that structure from Hooding, erosion, or other hazards.
Examples of this mitigation are primarily elevation of structures above Hood levels and Hoodwalls.
■ Safe Room Construction - Safe room construction projects are designed to provide immediate ble-
safety protection for people in publicand private structures from tornado and severe wind events.
Includes retrofits of existing facilities or new safe room construction projects, and applies to both
Ongle and dual -use facilities
• Minor Localized Flood Reduction Projects - Projects to lessen the frequency or severity of flooding
and decrease predicted flood damages. such as the installation or up -siting of culverts, and
stormwater management activities, such as creating retention and detention basins. These projects
must not duplicate the Hood prevention activities of other Federal agencies and may not constitute a
section of a larger flood control system.
• Infrastructure Retrofit • Measures to reduce risk to existing utility systems, roads, and bridges.
• Soil Stabilization - Projects to reduce risk to structures or infrastructure from erosion and
landslides, including installing geotextilm stabilizing sod, installing vegetative buffer strips,
preserving mature vegetation, decreasing slope angles, and stabilizing with rip rap and tether means
of slope anchoring.' These projects must not duplicate the activities of other Federal agencies. New
tools for Bioenginvered Shoreline Stabilization, Bioengirwered Streambank Stabilization.
■ Wildfire Mitigation - Projects to mitigate at -risk structures and associated loss of life from the threat
of future wildfire through: Defensible Space for Wildfire, Application of Ignition -resistant
Construction and Hazardous Fuels Redaction. New tool lar Bioengineered Wildfire MidgaHon.
• HMGP only - 5 Percent Initiative Projects - These project, which are only available pursuant to an
HMGP disaster, provide an opportunity to fund mitigation actions that are consistent with the ,goals
and objectives of approved mitigation plans and meet all HMGP program requirements, but for which
it may he difficult to rnndiit t a standard Benefit -Crest Analysis (BCA) to prove cost-effectiveness.
How do I apply?
Start by submitting a Notice of Interest, available on HSEMs website ati
httlLlldas.mn.i-,uy f di<,isitjns f hsem
Where can I obtain farther information?
For additional information about the HMA grant program, you can refer to the FEMA wcbsite:
;�l�f �'ifl��'.1rc[Ail,.eu'ylhalard-miti�,Il1S!n-tssist.urcc
DPS-NSLe4 Gxcn bee _x?d S
Page I E - zg
Sherburne County Multi -Hazard Mitigation Plan, 2020
MITIGATION IDEAS WORKSHEET
Please use the Following worksheet to identify mitigation actions tfiat y m. I _T�l will help to reduce or
eliminate the impact of future natural hazard events to the county or to your individual jurMirtion.
JURISDICTION:
CONTACT
Name
Phone!
Email
Page IE-3o
Sherburne County Multi -Hazard Mitigation Plan, 2020
SHERBURNE COUNTY
May 31, 2019 MHMP Planning Meeting #1
Mitigation Ideas Worksheet Notes
Following are notes from the Sherburne County 5-31.19 MHMP Planning Team Meeting ##'Mitigation
Action Working Session Participants used worksherts to pfoviefe input on mitoeatron actrvilies they felt
would help to reduce or eliminate the impact of future natural hazard events to the county or local
prrndactrons. the mitigation actions identtfied will he used to support development of new mitiga lion
actions to include in the Sherburne County MHMP 2019 Update,
Sherburne County (Public Works Dept.)
Submated by. Andrew Willee. Pubfff Works Director
Hazard? All Hazards
Action: Obtain an Ernergeficy Response Trader for traffic conUol (barricades, signs,.
cones/barrels, toolbox, flagging equipment for safety, flashlights, ftares, portable
generator). Aka get a portable, changeable message sign.
Hazard: Flooding
Action: Conduct culvert replacement/repairs where needed.
Sherburne UUM
Submitted by: Korhleen Heaney, County Attorney
Hazard: Straight Fine windsJornados
Action: Safe rooms j sh0ters for campgrounds, RV Parks and mobile home parks where people
are vulnerable during dangerous high wind events. Landfalls also require the weather
response plans.
Hazard: Frosion/Flooding
Action: Restoration of ditches to carry surface water discharge. Re-establish banks of the Elk
River downstream from dam at Main Street_
a�-atafd Wildfire
n� tiui, Institute program in koa al parks for controlled burns,
Sherburne County
Submitted by: Jenny Norton, Risk Management Specialist
Hazard: lornado/High Winds
Action: Construct safe room at the County Fairgrounds and sate room/storm shelters for other
communities in the county —identified as a need,
Page I E - 31
Sherburne County Multi -Hazard Mitigation Plan, 2020
City of Ble lake
Submitted by: Seth Hansen, Asst. Fire ChieffGity Councilor
Hazard: Natural Systems Protection
Action: More greenscape/filtration management in development areas and/or road
reconstruction areas.
MN RNR forestry
Submitted by: Jason Kern, Resource Protection Program Forester
Hazard: Severe Summer Storm
Action: Work with landowners to manage forestlands of all acres to manage forests hr more
resiliency to storm events MN IJNR, County SWCD can assist and funds also available.
Hazard: Wildfire
Action: Same as above. Also continue public awareness with Firewise. Pursue development of
a Community Wildfire Protection Plan (CWPP) for the whole county, or Least with
townships that have a higher threat.
Hazard: All -Hazards
Action: Training for responders in 0 and all -hazards training.
Page I E - 32
Sherburne County Multi -Hazard Mitigation Plan, 2020
Sherburne County Multi -Hazard Mitigation Plan Update
Planning Team Meeting tit
December 17, 2019, 10:00 a.m. - 12:00 p.m.
Sherburne County Sheriffs Office, Elk Rlver, MN
Meetine Sumrna
On Tuesday, December 17, 2019 Sherburne County Emergency Management convened representatives
from 5herhurne County, cities, townships and other key stakeholders to participate in the 2"aP Planning
Team Meeting for the Sherburne County Mulb-Hazard Mitigation Plan (MHMP) Update for 2020-2025,.
The meeting was hetd at the Sherburne County Sheriff's Office in 'Elk River, MN from 10:00 a,m. -12=
p.m. and a total of 32 people attended the meeting,. The meeting was facilitated by members of the U-
Spatial at the University of Minnesota Duluth (U-Spatial(WUMD) team that is leading the update of the
Sherburne County MHMP.
The opening Power Point presentation covered a re -cap of key points about the plan update, a review of
the Risk Assessment & Vulnerability Analysis, an overview of FEMA Hazard Mitigation Assistance (HMA)
grant funding; an overview of how mitigation actions are developed and an overview of the Mitigation
Action Charts (MACS). Following the presentation, participants were provided with an opportunity to
review and discuss the County and lurisdicbonal mitigation action charts (MACS). Prior W this meeting,
County staff and personnel From each city reviewed and approved of their draft MACS. This discussion
period offered a fac.ilitated opportunity for participants to consider any changes or new additions to the,
MACS prior to completion of the drab plan for public review.
Throughout the presentation participants were invited to ask questions or provide other fe,Pdback about
the plan update. Following is an overview of any key questions or discussion:
In the opening presentation it was covered that after FEMA provides a Fetter providing "Approval
PendingAdoptron"for the plan to Slrertxune Couroty, thor the County and ciryjurrsdictions
participating in the plan need to pass resolutions adapting the plan It was noted that township
governments are covered by the County resolution, but can also adopt the plan by resolution for
the township if they wish A township officioi in atterndance asked what mould be the benefit of
a township decideng to pass a resolution adapting the plan It was explained char d coidd benefit
the township's own local emergencymonagement efforts by demonstrating commitment to
participating on the plan and providing support far future funding requests for related mrtrgaUon
actions to the Tosvnshep Board or other outside grant fenders.
• rn the discussion of Mitigation Action Charts, one person commented that i f commuMw% are
planning on obtaining gerierarars for emergency backup power, they also need to plan far the
having ovuifable fuel on -bond to rein therm_ This was rioted as something lira! governments
would hove to be prepared for rf using generators. (Nothing needs to be Added to MNMP
content)
• In the discussion of Extreme Winter /Summer Storms and vulnerabilities, one person asked if we
are working with Xcel Energy on planning for power outages It was explarned that the larger
far-pro/rr energycomporires (r.e Minnwsoto Power, Xrel Energy) have not beer? excluded from
the pionning process but ordy local rurol and municipal utilities are eligible to opply far FENIA
Page I E - 33
Sherburne County Multi -Hazard Mitigation Plan, 2020
HMA grantlanding for utility projects (not the jar projrr componres)- in the Sherburne County
Mitigation Anion Mort the mirigotion ortion regarding srrengrhenmylborying vulf rohl
powerlaws refers to the rural etectric & municipaf energy coops
The meeting concluded with an overview and timeline of the upcoming next steps of pasting the plan
For public teView and input and submitting the draft plan to HSEM and FFMA for final review and
approval.
Attached to U* meeting summary are the following documerstatlon items;
12.17.19 Planning Team MectingStakeholder Invite list
12.17.19 Sherburne County HMP Mtg, 92 Email Invite
12-17-19 Meeting Agenda
12-17-19 Meeting Sign -in Sheets
12-17-19 Power Point Presentation Slides
12-17-19 Meeting Handout (Mitigatr)-n Strategies & Acuon Typesi
Meenrig Summary Prepared By Bonnie Hundrieser. U-SpotiolLIDUMD Project Team
Page I E - 34
Sherburne County Multi -Hazard Mitigation Plan, 2020
Sherburne County 2+019 MHMP Update
12-17-19 Planning Team Meeting Stakeholder invite List
Fallowing is the list of stakeholders that were invited via email to attend the Sherburne County MHMP
Update Plann,ng Teant Meeting All field can December 17, 2019.
COUNTY CONTACTS
Area: County Administration
Name: Bruce Messelt
County Position: County Administrator
Entail: brute.rtsesseitLwco,sirerbunre,mn.ux
Area: County Administration
Dante; Dais Weber
County Position: Assistant (ounty Administrator
EmaiL dan.weber o.sherbunre.mn.us
Area: Public Works
Name: Andrew Witter
County Position: Public Works Dim%ctnr
Entail: andrew.wittPa_sherbpnre.mn.try
Area: Ptanning and Zoning )County)
Name: Nancy Riddle
County Position: Planning and Zoning Director
EmaiF. nancv. riddle (ii co.sherbunre.mn.us
Area: Public Works (Parks)
Name: Gina Hugo
County Position: Parks Coordinator
Email ;tina,huizo0co.sherbunre.min, us
Area: Health and Human Serysces
Name: Cody Engelhaupt
County Position: i ead Community Health Coordinator
Email cody.enpLelhaupt@?co.sheibunre.mn.us
Area: Gts (Cmnly)
Name: Bien Forbes
County Position: GIS Coo fdtnator
Email brO.forbe� to.slttrbunre.Cnty.lti
Page I E - 35
Sherburne County Multi -Hazard Mitigation Plan, 2020
Area: Assessor (County)
Name: Michelle Moen
County Position: County Assessor
Emaik mKhell.moengco.sherbunre mil -us
Area: Attorney (County)
Name: Kathy Heaney
County Position. County Attorney
YEmail: kathlgen.heanev[r�co,xherf3unre-mn-us
CITY CONTACTS
CITY OF BECKER
Area: law Enforcernent/Emergency Management
Name: Brent Saloun
Position: Chief of Police / Director of Emergency Management
Emaik chief@ci.hecker.mn.us
Area: City of Becker Fire Department
Name: Went Raloun
Position: Chief of Police j Direttor of Emergency Management
Entail. chief@ci,becker mn.us
�d l a:I�: 3 IrI ►�T'.f �
Area: Jew Enforcement/Emergency Management
Name: Joel Scharf
Position: Chief of Police / 17irector of Emergency Management
Emalk ischarf0bielakeoolice.com
Ares: City of Big Lake Fire Department
Nomet Ken Halverson, Fire Chief
ErWk br lakeflfe�fr+FJakef .
CITY OF CLEAR LAKE
Arta: Hoe/Emergency Management
Name: Craig. Miller
Position: Assistant Fire Chief / Deputy Director of Emergency Management
Emaik• craiF,.millerfbuiltbybens.com
CITY OF ELK RIVER
Area: Fire/Emergency Management
Name-, Mark Dickrnwn
Position., Fire Chic(/ Director of Emergency Managenarnt
Emaik mdickinson@)elkrivermn.goy
Page I E - 36
Sherburne County Multi -Hazard Mitigation Plan, 2020
Area: law E nforeement
Name; Bob Kluntr
Position: Administrative Captain
Email: Wuntz"krivermn.atov
CITY OF ZIMMERMAN
Area:. fire/Emergency 'Management
Name: Ryan Maloney
Position: Fire Chief / Director of Emergency Management
Email: zlrnmermanfdLizoom.net
CITY OF ST. CLOUD (Partially located in Sherburne County)
Erin rufte, City of SL Claud & Stearns County Emergency Manager
Erin.-Ful'tr0co.stearns,mn. us
320-259-3942
CITY OF PRINCE:TON (Partially located in Sherburne County)
Pion Lawrence. fire Chirf/Emergency Manager
ellydchiefl ftrincetonfirem n-com
(763) 286-1717
OTHER STAKEHOLDER CONTACTS
Wright County (Neighbor County to Sherburne)
Seth Hansen Fnivtkvr,e y iat.rna.,e•
seth.hansenCh)co.wrr Per rnn u,,
(7631 694-7 3 71
Mlle Lacs County (Neighbor County to Sherburne)
lrllie pet-f-i"l. Foler envy Man;agrr
rulie.peterson'Tr e-mrlle-lacs.mn.us
(3201983 84 JS
Anoka County (Neighbor County to Sherburne)
Terra Stoneman, Emergency Manager
terr)i, stolzmalicAo.anoka.mmus
i76.31.374-4761
Page I E - 37
Sherburne County Multi -Hazard Mitigation Plan, 2020
MN DepL of Natural Resources (Forestry)
Jason Kern, Resource Proteclion Program Forester
Jason. kern (btate. m m us
MN Dept. of Natural Resources (Forestry)
Paul Talbot, NRF fare Response Lead
Paul.talbot(a state.mn.us
Sherburne National Wildlife Refuse
Steve Karel, Refuge Manager
steve karclWws.ecry
(763) 389-3323 ext. 101
USDA— Rural Dewkgm3ntCommunity Programs
Brett Repulske, Program Sper wlio
br e tt. reoulskejE usda. eov
Sherburne County Soil & Water Conservation District
Francine Larson, District Manager
flarson ffi)sherburneswcd.org
763-220-3434, ext. 101
TOWNSHIP COWACTS
(Contact info or? flit)
1. Baldwin
2. Berkcr
3, Brig Lake
a. Blue Hill
S. Clear Lake
5. Haven
7. Livonia
a. Orrock
9. Palmer
10. Santiago
Page IE-38
Sherburne County Multi -Hazard Mitigation Plan, 2020
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Goad Afternoon,
At the end of May the Sherburne County Sheriffs Office Division of Emergency Management hosted an lr4tial
Hazard hAltigatlon Planning Meeting (*I). Since then we've been hard at worts updating plan information,
data, and details based on that meeting and other feedback/'surveys received in the meantime. We stoned
with a core group and are expanding based on needs and feedback. Your presence is req,iested at the 2nd
Planning Team Meeting for the update of the Sherburne County Muld•Hazard Mitigation Plan (MHMP). You
are requested to participate in tNs vital meeting because you have a position of admir:strative or
departmental respor+ybi]ity within either the County, a municipal government, or are a key stakeholder
related to thr planning process. The purpusc of this meeting Is to provide on overview of the pion, Inciuf init
a revrew of the updated risk assessment for natural hazards that affect the county (history, local
vuinerabr'iities, and future trends). We wfil also discuss the Mitigation Action Charts that 'lave been
developed for Sherburne County and each dty, as well as potentfat funding opportunities for future projects
under ttie FEMA µazard Mitfgation Assistance grant
progta m, Your participation i n this meeting and feedback an the draft; plan Is imp"nt to us -
Please plan to attend tare meeting on Deco mber 17, 2019 from 10:011am-12:00pro which will be hosted In the
county Emergency Operabons Center (13880 Business Center Drive - El River, MN 55330): please send an
RSVP to me as whether you can attend or not Also if ottxrs in your organization shouid need to attend this,
please pass the message along. Feel from to call or email with any questions {see the attached invite flyer for
additional information)
thank you,
Kyle Breffle
,P,r. rnr of Emnrgomy Marmgomonr
Shorbi rn* County Sheriffs
0111ce r 36BO Bismess Center
Drive r.Nv Elk River. Mr-4 55330
763- f6S-3531
-Curyw+Rn+enr ev Service wires hmewirY and Pride"
racebocA g5h&bCa nerrR
Page IE-39
Sherburne County Multi -Hazard Mitigation Plan, 2020
SHERBURNE COUNTY
2019 MULTI -HAZARD MITIGATION PLAN UPDATE - MEETING INVITATION
Greetings,
Your presence is requested at the 2nd Planning Teem Meeting for the update of the Sherburne County
Mu M-H;zarrd M t irtion Plan jMHMP). You are requested to participate in this vital meeting because
you have a positron of admimstratrve or departmental responsibility within either the County, a
municipal government, or area key stakeholder related to the planning process.
Meeting Detail
Date; Tuesday, December IT"
Time: 10:00 a.m.--12iOO p.m.
Location: Sherburne County Sheriffs Office - EOC
13M Business Center Drive, Elk River, MN SS330
The draft Sherburne County MHMP is underway and will be ready for review by planning team members
in advance of this meeting. An email with a link will be sent out prior to the meeting.
The purpose of this meeting m to provide an overview of the plan, including a review of the updated risk
assessment for natural hazards that affect the county (history, local vulnerabilities, and future trends).
We will also discuss the Mitigation Action Charts that have been developed for Sherburne County and
each city, as well as potential funding opportunities for future projects under the FFMA Hazard
Mitigation Assrstance grant program. Your participation in this meeting and feedback on the draft plan
is important to us.
Meeting Attendance: Please RSVP your attendance tome via email. You are encouraged to bring
associate staff with you. If you cannot attend, please seek to send someone else in your stead for your
representation.
It you have any questions, please do not hesitate to contact me.
Thaa you,
Kyle Br*Me
ii wror or E"PeMemy Services
S wrtlNTa County Sheriffs #,lftrce
138409ueimessCenter ortie rfvv
Elk Rher UN 55330
f. x5Y765-a531
-Cremrnnnaerer m Service who lnmVmy and PKde"
inna cfl_sh artiu-1) reM_ushsha n}I Facetook QSnerDC05hen71
Page I E - 40
Sherburne County Multi -Hazard Mitigation Plan, 2020
Sherburne County
2020 Multi -Hazard Mitigation Plan (MHMP) Update
Planning Team Meeting #2
Tuesday, December 17, 2019, 10:00 a.m. —12.00 p.m.
Sherburne County Sheriff's Office (EOC) — Elk River, MN
Presenting:
+ Stacey Stark; I I Spatial at University of MN Dufuth
• Bonnie tlundricser. Hundneser Consulting LLC
Agenda-.
Welcome & Intraductiaris
2. Recap of MHMP Key Paints
3. Review of Risk Assessment k Vulnerability Analysis
4. Overview of Mitigation Actions & HMA Grant Funding
S. Mitigation Action Chart Review & Feedback
6. Next Steps (Public Review & Plan Submission)
Point of Contact:
Kyle Breffle
Sherburne County Emergency Management Director
Phone: 763.765.3531
Email: kylt.breffieA o.sherhurnr mn cis
Page I E - 41
Sherburne County Multi -Hazard Mitigation Plan, 2020
Sherburne County
12/27/29 M H M P Planning Team Meeting #
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Page I E - 42
Sherburne County Multi -Hazard Mitigation Plan, 2020
12 /17/19 H a Mco py Si gn - in Sheets
Sherburne County - Multi Hazard Mitigation Plan Update
Planning Team Meeting #2 -Tuesday, December 17,2019- 10:00zk-m- - 12:00p.m.
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Sherburne County Multi -Hazard Mitigation Plan, 2020
12117/19 Power Point Presentation Slides
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Page IE-44
Sherburne County Multi -Hazard Mitigation Plan, 2020
7
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Page I E - 4S
Sherburne County Multi -Hazard Mitigation Plan, 2020
13
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Page IE-46
Sherburne County Multi -Hazard Mitigation Plan, 2020
Hazards of Molduate Fisk
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Next Steps (January -February, 2020E
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Page I E - 47
Sherburne County Multi -Hazard Mitigation Plan, 2020
Mitigation strategies & Action Types
Fofiowtng are [roe flue types of mitigation strategies that will be used In the update of the Multi -Hazard
Mllip tion PI an with axamplesof related mitigation actions. Minnesota HSEM recommends the use of thew
mitigation strategies to be in alignment with the State plan and those recom mended by FFMA- The fi"t raw
strategies listed aura taken from the F E M A publications LocalMi[igation Plonninq Handbook 12011) and
Mitigation fdtYrs A Resource for Reducing Risk to No twat Ho:ords j2013). The rifth strategy type was
determined by Minnesota HSEM fee use within the state.
these orategles will provide [he frarnewnrk for Identification of new jut;sdictionpl•level m4iaa[ion
actions lnr'-rir.Mentation over the next S-year planning cycle.
Local Pl&ming
and 110901"Orlis
Structure and
I tfrastructurs
Pnojacts
These act►cns include govemment
authorities, policies, or codes that influence
the way land and buildings are developed
and built.
These actions involve mod.fy.ng existing
structures and infrastructure to protect
there from a hazard or remove them from a
hazard area. This could apply to public or
private structures as well as critical facilities
and infrastructure.
This type of action also involves projects to
construct manmade stnrcturesto reduce
the impact of hazards.
Page I E - 48
• Comprehensive plans
■ Land use ordinances
• Planning and zoning
■ Building codes and enforcement
• Floodpiain ordinances
• NFVP Community Rating System
• Capital improvement programs
• Open ti{sacc pre-ervat,Qn
■ Shoreline codes
• Stormwatet management
regulations and master plans
• Mobile home park compliance
for }tome sheltem
• Proper Acquisrtionsand
elevations of structures in flood
prone areas
• Utility undergrounding
• Structural retrofits (1.e.r metal
roofs)
• FIocdvia llsand retain ingwalls
• Detention and retention
structures
• Culvert InstallationlModrfitataan
• Roads,& Bridge risk reduction
• Safe Room (New construction or
fK lity rrtrafit)
• Green 10Frastnvcture Method5
Many of thew types of acfiom care
projects e6grbjrfar jundinq through
FEMA HMA�rartt programs.
Sherburne County Multi -Hazard Mitigation Plan, 2020
Natural
Systems
P rotattion
Education and
Awareness
Programs
Mitigation
Preparedness
and Response
Support
These are actronsthat rninirmze damagr
and losses and also preserve or restore the
functions of natural systerns,
These are actions to inform and educate
citizens, elected officals, and property
owners about hazard; and potential ways
to mitigatethem. Theseactic nsmay also
include partrcrpation in national programs,
such as StormReady or FFrew,se
Communities. Although this type of
mitigation reduces nsk less directly than
structural projects or regu cation, It is an
important foundation. A greater
understanding and awareness of hazards
and risk among local officlals, stakeholders,
and the public is more likely to lead to
d irect actions that support I ife safety and
lessen property damage
Thisis a State of N"innesota mitigation
strategy with the intent of covering
emergency preparedness actions that
protect life and pfoperty p ri or to, during,
and immediately after a disaster or
hazard event. These art rvities are
typically not considered mitigation, but
support reduction of the effects of
damaging events.
Page I E - 49
• Soil stabil441ion for sediment
and era, ion Control
• Floodplain and Stream corridor
restoration
• Slope management
• Forest management (defer-,ibte
space, Fuels reduction, sprinkler
systems)
■ Conservatraneasements
• Wetland rest oration and
preservation
• Aquifer Storage & Recovery
■ Flood Diversion and Storage
Many of these types of actions are
projects eligible far funding:lrrou9h
FEMA HUA grant programs.
• Rad+o or television spots
• Websites with maps and
information
• Social media outreach
• Promotion of sign-up for
emergency warnings
■ Real estate disclosure
• Promotion of NFIP inswame to
property owners
■ Presentations to school groups
or neighborhood organizations
It Mailings to residents in hazard -
prone areas.
• N Ws 5tormRe•dyProgram
■ Faewise Communities
Some of these types of actions may be
projects ebgibfe f or funding through the
FFMA HMA S Percent lnitioti io Program
■ Emergency Operations Plan
• Flood fight plans and
preparedness measures
• Dam emergency action plans
■ Emergency Warning Systems
(i.e., CodeRed, wa r 6 ng sirens)
• Generator backup power
• NWS Storm Spotter Training
• Training and education for local
elected officials and key
Sherburne County Multi -Hazard Mitigation Plan, 2020
Appendix F
Public Outreach &
Engagement Documentation
PageIF -z
Sherburne County Multi -Hazard Mitigation Plan, 2020
Record of Public Input & Incorporation
News Release #1-January 3, 2019, "Public Feedback Sought for Multi -Hazard Mitigation Plan"
On January 3, 2019, Sherburne County Emergency Management put out a news release announcing the
start of the County's Multi -Hazard Mitigation Plan. The news release was shared via numerous channels
to reach the public, including the Sherburne County Sheriff's Office website, Facebook and Twitter
postings as well as distribution to local media (St. Cloud Paper online). The news release provided
information on the purpose and content of the plan, who the plan covers, stakeholders involved in the
plan update and examples of hazard mitigation activities.
Sherburne County used the news release to gather feedback from residents and businesses from across
the County to incorporate into the plan, inviting feedback to the following:
• What are the natural hazards you feel pose the greatest risk to your community?
• Have you experienced a previous disaster event?
• What concerns do you have, and what sorts of mitigation actions or projects do you feel would
help to reduce the damages of potential future events for your personal property, your
community, or the County as a whole?
The public was strongly encouraged contact Sherburne County Emergency Management to submit
comments, concerns, or questions regarding natural disasters and potential mitigation actions to be
included into the plan update process.
Appendix F contains documentation of the means of public outreach for News Release #i.
Record of Public Input & Incorporation:
Sherburne County Emergency Management did not receive any public input following News Release
#i.
News Release #2 — January, 13, 2020, "Public Review and Feedback Invited for County's Multi -
Hazard Mitigation Plan"
On January, 3.3, 2020 Sherburne County Emergency Management put out a news release announcing
the completion of the draft Sherburne County Multi -Hazard Mitigation Plan and invitation for public
review and comment. The news release was shared via numerous channels to reach the public,
including the Sherburne County Website, Sherburne County Sheriff's Office Facebook & Twitter
postings. Sherburne County Emergency Management Director also sent an email directly to all city
representatives encouraging them to share the news release locally on their city website or social
media. Planning team members were also sent an email inviting their review, feedback and
confirmation of plan review. The news release informed the public that a copy of the draft MHMP and a
survey for public feedback was available online at.https://sites.google.com/d.umn.edu/sherburne-
county/home. The public feedback period forthe draft plan was open from January,13, 2020 to
January, 27, 2020, for a total of 3.5 days.
Page I F - 2
Sherburne County Multi -Hazard Mitigation Plan, 2020
Appendix F contains documentation of the means of public outreach for News Release #2.
Record of Public Input & Incorporation:
Public input was received via use of the online comment form and via direct response to the Sherburne
County Emergency Management Director. Following is a record of public input received and description
of how the feedback was incorporated into the plan, and if not, why.
Online Comments — We received 2 responses via the online comment form. Neither required
changes to the plan. Following are the survey questions that generated response, the public
comment, and how it either was or was not addressed in the plan update:
1. Question: "After reviewing the mitigation actions for yourjurisdiction, do you have any
ideas for new ones to add? Please explain in as much detail as possible."
Comment: "Do we need anything regarding the BNSFinainline that traverses the county?"
Action: No action necessary for plan update. This is mentioned in Section3.8.2 Railways.
Railway incidents are not a part of this plan because it addresses natural hazards only.
2. Question: "Are there any issues in your community related to natural hazards that we did
not address in the plan? Please explain in as much detail as possible."
Comment: "Tornado/Severe Weather"
Action: No action necessary for plan update. Tornado/Severe Weather storms are
addressed at length in the plan".
Comments Submitted to Sherburne County— No public comments were received by
Sherburne County Emergency Management.
Page IF-3
Sherburne County Multi -Hazard Mitigation Plan, 2020
'Commitment to Service iv*h Integrity and Pride"
PRESS RELEASE
For Immediate Release
C crtact David Urre Commowartions Meet-, -.
lore. 3, 2019
PUBLIC FEEDBACK SOUGHT FOR MULTI -HAZARD MITIGATION PLAN
The Sherburne County Sheriff's Office Emergency Management Department is working with the
University of Minnesota -Duluth Geospatial Analysis Center (GAC) to prepare an update of the County's
2013 "Multi -Hazard Mitigation Plan" (MFIMP)- The plan is a requirement of the Federal Disaster
Mitigation Actor 2000 {DMA 2f31 ) and must be updated every five years in order to maintain eligibility
for certain federal disaster assistance and hazard mitigation funding programs.
Development of the plan is under direction of the County's Emergency Management director In
cooperation with a planning team of representatives from County departments, local municipalities,
school districts, and other key stakeholders such as utility providers. The planning team is responsible to
provide feedback required for the plan update, including the review and ranking of hazards and
identification of strategic, cast -effective mitigation activities that may reduce future losses for the
County and individual jurisdictions. Some mitigation activities maybe eligible for future FEMA Hazard
Miti atton Assistance (HMA) grant funding, such as: localized flood reduction measures, property
acquisition and relocation/conversion to open spare, infrastructure retrofits, wildfire mitigation, and
safe room construction or retrofits to provide immediate life safety protection for people vulnerable to
tornado and severe wind events.
About the Plan
The Sherburne County M H M P n a multi•jurisdictronaI plan that covers Sherburne County, including the
citiesof f4-, k,r, Iiik, I.1l,v i Irag Lair, f I looser. Iunrnrrr> ., 1 •,ii•, my, +,f Baldwin, &'tier, Big
Lake, Blue Hill,, Clear Lake, Haven, Livonia, t7rrock, Palmer, and Santiago.fhe Sherburne County MHMP
also incorporates the concerns and needs of school districts and other stakeholders participating in the
plan.
Sherburne County is vulnerable to a variety of potential natural disasters, which threaten the loss or life
and property in the county. HaLatds such as tornadoes, fkxxfrng, weldhres, blizzards, straight-line winds,
ice storms, and droughts have the potential roe inflicting vast economic loss and personal hardship.
SHERIFF'S OFFICE
COUNTY GOVERNMENT CENTER
13880 Business Center Drive
Elk Rrvw, MN 553:3D-1692
Page I F - 4
Office (763)765-36DO
ToWFree (8W) 433-5245
Fax (763) 441-73D3
Email rxherlffQm sherbun-e min ue
Sherburne County Multi -Hazard Mitigation Plan, 2020
Sherburne County Sheriffs Office PRESS RELEASE
According to Sherburne County Emergency Managerinent Director, Kyle Breffle, "Hazard mitigation
planning is a central part of our emergency managemert program. Understanding the natural hazards
that can cause serious impact to our communities and taking action to reduce or eliminate the impact of
Future disasters makes us more resilient, Hazard mitigation helps us to break the cycle of damage and
repair caused by things like flooding, ice storms, and severe wind events that can damage property,
stress economies, and threaten life safety in our county."
Examples of hazard mitigation include actions such as improvement of roads and culverts that
experience repetitive flooding; construction of safe rooms at campgrounds, parks, mobile home parks or
schools to protect lives in the event of tornados or severe wind events; burying powerfrnes that may fail
due to heavy snow, ice or wind storms; ensuring timely emergency communication to the public
through warning sirens and mass notification systems, and conducting public awareness and education
campaigns to help people to be prepared to take safe action before, during, or following a hazard event.
Public Feedback and Participation is Encouraged
As part of the planning process, gathering input from the public is an important and required step.
Sherburne County seeks togathef Feedback from residents and businesses from across the County to
incorporate into the plan:
What are the natural hazards you feel pose the greatest risk to your community?
a Have you experienced a previous disaster event?
s What concerns do you have, and what sorts of mitigation actions cx projects do ym feel would
lwlp to reduce the damages of potential Future events for your personal property, your
community, or the County as a whole?
The public is strongly encouraged to submit your comrrtents, concerns, or questions regarding natural
disasters and potential mitigation actiors to be Included Into the plan update process. please submit
your feedback to Sherburne County Emergency Management Deputy Director, Derek Baas w 763-76S-
3Wof derck bJas 1cO.;hr rtsu,riUJJsr'._a
The public will have a continued opportunity to participate in the MHMP update in the coming months.
A draft of the plan will be posted or the County website for public review prior to submission of the plan
to the State of Minnesota. Future news releases will be shared with the media to notify the public of
these opportunities,
contact
Derek Baas
Sherburne County Emergency Management Deputy Director
Phone: 763.765.3508
Email- derek,baasnlc_n shertwrne,mr u
Page 2
Page I F - 5
Sherburne County Multi -Hazard Mitigation Plan, 2020
Sherburne County MMMP News Release pI - Pubtrr Outreach
Sherburne County Sheriff's Office Websitr
January 3, 2019
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Page I F - 6
Sherburne County Multi -Hazard Mitigation Plan, 2020
Sherburne County MHMP News Release AI - Pubhr Outreoch
Sherburne County Sheriff's Office Facebook & Twitter Postings
January 5, 2019
Sherburne County Sheriff's Office Facebook Posting
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Page IF-7
Sherburne County Multi -Hazard Mitigation Plan, 2020
Sherburne County MHMP News Release #1 - Puhtar Outreach
St_ Cloud Paper online - http:/Jwtun.corm j
lanuary 7, 7014
OnNne Article
FIX RATR -- Slsuburn,� Counts is looking to gd v out input rm whidr natural hazat& pease the grratvst
trsk to the: comununLI%L
l'hc Shcrhurnc ('aunty Shcriftvs i lflice F:mcrgcncy Management I epartmcni in connodion with the
niv w-r%itN' 4 Xbrim s 3 - Dululh t 4;vspatial Analyxis tC%micr r� ulxrtmQ the voutrit'k .#li ; Nluht-1 lararJ
%fililralnnt Flan Ilrc plan ha% to he upJatcJ anJ rcvtewcrd cver% fn c vcarr Irs he able to rccciv c fcJaaal
funding fcw natural dicasla assiviarscc and othcr fundirip fur hazard mitigation Programs.
Derck Ba:u is the ShLrhurnc Cuuntt Fm;xgonv} \lanavtxrtsxit DLTuts Duvttor, lic saws the cuunit is
1'ult4tY :l L+ll' la? 1146%.Wal tNyn7s of natural d"tv:nr including turruJvra, w dcll'an.°s. hliz/am6. Ice stoma.
Jrsvuehl% .uaigtFrt-Itrw winds arwJ downing. liaae say,N gmling tFw puhl%:*% input nssv► cuald dc>Ltr�.a
Ilk; s`vsrtity raf OilL oftlwac PoIcntia} rwtursl J6%mten.
If `r aunt thenr I dic puN f to t rHrh: to us wah .smote rjf their input, omce rasa ov. idruv elfstrffMat cr.1m l he
mwrkcd on thrcAighote Aerburrte Corarty fv i"ated thnmghout the cnwrnt sncls rats rrxids. cuhrrts. or
vrAme CrrArv;-r knes that might he hanging law r!r .ttcltewavi. "
Somc of the basic cluc-tions the F'.mcrgcncv Aianagcamcid Ihpartmcnt ra asking the public arc Wm .
s N\Iml arc the natural hazards ycvu f6vt post; tin; uL2W-t risk to ►our virrrurrunitV?
llavl sou t:<pertc;ncW a pro,iou% dv&-v49cv evtw?
s What co cium Jo v"nu have, and what torts of mitigartr+>,r atlas+% air projajs des vrvu fccl wnru)J help to
rsdk" dw damapos rf lxsLLimAl fulurc event$ for foul P+.rs+mal pro9 oly, your aomntunity sx tht: ecwanty
aw a whole"
Page I F - 8
Sherburne County Multi -Hazard Mitigation Plan, 2020
Was sa%& dm't mcrthink %hat yan soc cticry day. comm'm might nood sutra c"xtra allcmion.
"7f mu sm a rxxul that m & to he uNared, Or t ►tmI�e also,4% clrmng dawn the rrxrcl and im see an
crrerr rh ar% uiu'Ul-i jleviderl like there's put aluvws water sitting there lirke nrgPr 4.(&it. "
fwe maim passvlrlc natwal ciiga+tax% the count• is ahtim,x cnnccrncd oldi arc a train dcradramt crncc the
BNSF Railroad nut, tinough the county as well as a failure at tlx: nuclear pcascr plant in klonticclio. Baas
sa►'s for both of dtmc xccwri+mr stafl'Arc being trairW mi nca prnccdures to stagy up to elate in retpanding
to IbLAc potog al disast%n.
To gi%c }'our input mash out to Baja at d+veLbaas,aco_simbumc.ran.us or 763-765-+5NL
Page I F - 9
Sherburne County Multi -Hazard Mitigation Plan, 2020
.Comm tment to Serwrce with Integrity and Pride"
PRESS RELEASE
For immediate Release
Contact Wvid UrEe Commuwalicns Mede SpeciWist - (763) 765.3773
Jan. 33, 2019
PUBLIC REVIEW AND FEEDBACK INVITED FOR
COUNTY'S MULTI -HAZARD MITIGATION PLAN
Sherburne County:}as tvrnpdeted ar+ r,pdated draft of tltr of ttve County'~ Multi -Hazard Maidatlon plan
as required by the Federal Disaster Mitigation Art of 2000. Lowl jurisdirtions are required to update the
plan emery five years to remain eligible for federal hazard mitigation grant programs.
Community involvement and feedback are vital to the success of the plan- Sherbume Ginty invites
public review and feedback of the draft plan prior to submitting it to the State of Minnesota and the
Federal Emergency Management Agency for review. A copy of the draft arrd a survey for public
feedbac-k is available online at h!tR%dlsites,rctcn0P,corn/d. runn.edulsherbut neiountylhonry The plan
review and comment period will be open until Jan. 27, 2020.
About the plan
The Sherburne County MHMP is a multi -jurisdictional plan that covers Sherburne County, including the
cities of Becker, Big lake, Clear Lake, Elk River. Zimmerman and the townships of Baldwin, Becker, Big
Lake, Blue dill, Clear Lake, Haven, Livonia, Or rock, Palmer, and %antia.go. The plan additionally covers
the portions of the titres of Princeton and St. Cloud that are located within Sherburne County. The
Sherburne County MHMP also incorporates the concerns and needs of school districts and other
stakeholders participating in the plan.
5herturne County is vulnerable to a variety of potential natural disasters, which threaten the loss of life
and property in the county, The plan addresses low, to mitigate against hazards such as tornadoes,
flooding, wildfires, blinards, straight-line winds, ice storms and droughts that have the potential for
inflicting vast economic loss and personal hardship,
Update of the plan has been under direction of Sherbum+e County Emergency Management in
cooperation with U Spatial at the University of Minnesota Duluth and representatives from County
SHERIFF'S OFFICE
CWNT Y GOVERNMENT CENTER
13880 Business Cefnter Drive
Elk River, MN 5533D-1£92
Page I F - so
CiTioe (763) 765-35DO
Toll -Free. (800) 433-5245
Fax (763) 441.73D3
Email W-enffaw sherbume inn us
Sherburne County Multi -Hazard Mitigation Plan, 2020
Sherburne County Sheriff's Office PRESS RELEASE
departments, city and township gavernments, school districts and other key stakeholders. Together,
the planning team worked to identlfy cost-effective and sustainable actions to reduce or eliminate the
long-term risk to human life or property from natural hazards. Some examples include improvement of
roads and culverts that experience repetitive flooding; construction of safe rooms at campgrounds,
public parks, mobile home parks or schools to protect lives yn the event of tornados or severe wind
events; burying powerlines that may fail due to heavy snow, ice or wind storms; ensuring timely
emerelmy communication to the public through warning sirens and mass notification systems, and
conducting public awareness and education campaigns to help people be prepared to take safe action
before, duriN, or following a hazard event
The Benefits of Hazard Mitigation Planning
Hazard mitigation planning ultimately helps us protect Sherburne County residents. By working with
local communities, we can identify vulnerabilities and develop strategies to reduce or eliminate the
effects of a potential hazard. In addition, increasing public awareness of local hazards and disaster
preparedness helps to create a community that is resilient to disaster and breaks the cycle of response
and recovery. Update of the plan will further allow the Courty and its jurisdictions to apply for eligible
projects under future Hazard Mitigation Assistance grant funding from FIE MA for projects that are cost -
effeetrve and will hop to reduce or eliminate impacts of future natural disaster events.
Contact,
Derek Haas
Sherburne County Emergency Management Deputy Director
Phone: 763-765.3508
Email: defek.baastacv.shcrburre.mr.us
Page 2
Page I F - si
Sherburne County Multi -Hazard Mitigation Plan, 2020
Sherburne County MHMP News Release #2 - Public Review & Comment Period
Documentation of News Release Postings
January 13. 2020 - S I ivr burne County Webs+te (homepage)
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Sherburne County Multi -Hazard Mitigation Plan, 2020
Appendix H
Past Mitigation Action Review
Status Report (zo13-aos9)
Page IH-1
Sherburne County Multi -Hazard Mitigation Plan, 2020
Following is a report on the status of mitigation actions listed for all -hazard and natural hazards listed in
Section V: Mitigation Strategies of the Sherburne County 2oi3 Hazard Mitigation Plan. This report
identifies those actions that have been completed, are being deleted, or are being carried over into the
2020 plan update.
All -Hazards
All -Hazards
All -Hazards
All -Hazards
All -Hazards
All -Hazards
All -Hazards
(Goal i) Objective is Enhance
public outdoor emergency
notifications at key facilities
throughout Elk River, including
school/athletic complexes.
(Goal i) Objective 2: Deploy
robust reverse Eg-i-i system
integrated with next-gen
technology in Elk River.
(Goal i.) Objective 3: Improve
the City of Zimmerman's
public warning system.
(Goal 2) Objective is Improve
multi -agency response to all
emergencies and disasters.
(Goal 2) Objective 2: Develop
and implement countywide fire
training program.
(Goal 3) Objective z: Conduct a
public education campaign to
raise community awareness
about disasters.
(Goal 3) Objective 2: Create
comprehensive local
emergency planning material
for the City of Elk River,
including printed material and
videos.
(Goal 3) Objective 3: Train
All -Hazards citizens in Community
Emergency Response Team
(CERT) training.
(Goal 4) Objective is Upgrade
All -Hazards technology capabilities in
jurisdiction EOCs.
This is a comprehensive and costly project.
The city of Elk River, Sherburne County,
Ongoing and local big private businesses continue to
work together to find a solution for this
project.
Sherburne County purchased a notification
Completed system called CodeRED which is utilized
city and county wide, as well as integrated
into our gii. system and IPAWs.
The city of Zimmerman has recently
Completed replaced problematic sirens, as well as
utilizes Code Red the mass notification
system for public warning.
Several city and county officials completed
a nationally recognized an all hazards
Completed incident management course, several ICS
trainings, and participates regularly in all
hazards exercises.
Not relevant for MHMP update. This falls
Delete under emergency response planning for fire
fighting.
The county continues to actively participate
in severe weather and winter awareness
Ongoing weeks, as well as several other public
outreach campaigns and meetings with
local emergency -oriented personnel.
Delete
Delete
Delete
Page IH-2
Not relevant for MHMP update. This action
will fall underthe City of Elk River's
mitigation action chart.
The county discontinued its CERT program
and will not be reestablishing it.
Not relevant for MHMP update. This falls
under emergency response planning.
Sherburne County Multi -Hazard Mitigation Plan, 2020
(Goal 4) Objective z: Identify
9
an alternative site for Big Lake
An alternative site has been identified and
All -Hazards
emergency operations, should
Completed
can utilized at the city fire station.
the municipal campus be
unusable.
(Goal 5) Objective is Have
All -Hazards
lockbox access on all
commercial and multi -unit
Delete
Not relevant for MHMP update.
residential properties.
(Goal 6) Objective is Purchase
Each emergency response vehicle now has
All -Hazards
traffic control devices for all
Completed
some form of traffic control equipment.
emergency vehicles.
(Goal 7) Objective is Review
Sherburne County is in compliance with all
All -Hazards
and update emergency
Completed
plan updates set by local ordinance, state,
response plans.
and federal policies.
All -Hazards
(Goal 7) Objective 2: Create a
Delete
Not relevant for MHMP update. This falls
county resource inventory. _
under emergency response planning.
All -Hazards
(Goal 8) Objective is Deploy
countywide incident command
Delete
Not relevant for MHMP update. This falls
_ and accountability system.
under emergency response planning.
(Goal g) Objective is Issue PPE
meeting current standards to
ERPD has replaced their PPE and have
All -Hazards
all sworn ERPD officers to
Completed
issued new equipment that meets the
replace currently deployed
required current standards.
PPE, which was issued in 2002.
(Goal io) Objectives: Provide
countywide, on -site unified
Sherburne County has purchased a mobile
incident command capability
command vehicle, and provided ICS
All -Hazards
at remote and/or ongoing
Completed
training for several responders and can
incidents. (This capability
provide county wide on site unified
currently does not exist in
command.
Sherburne County.)
(Goal ii) Objective is Provide
ballistic protection to law
enforcement and others during
Specialized teams as well as officers have
All -Hazards
tactical operations in
Completed
been provided ballistic body, and head
Sherburne County. (This
protection.
capability does not currently
exist in Sherburne County).
(Goal 1.2) Objective is Install
Revise as needed for plan update in relation
All -Hazards
rural water supplies (i.e.,
Ongoing
to Wildfire mitigation. This is an ongoing
cistern /Dry Hydrants)
project that the cities and county are
—
working on.
(Goal 1-3) Objective is Establish
alternative access routes for
Not relevant for MHMP update. This falls
All -Hazards
emergency response in single
Delete
under emergency response planning for fire
access residential
fighting.
developments.
Page IH-3
Sherburne County Multi -Hazard Mitigation Plan, 2020
(Goal 1-4) Objective is Utilize
FEMA funds under the Hazard Not relevant for MHMP update. This falls
All -Hazards Mitigation Grant Program to Delete under emergency response & recovery
provide disaster relief to
affected Sherburne County planning.
citizens.
(Goal 1-5) Objective is Utilize
Revise as needed for plan update in relation
the international building code
to County -level efforts. Jurisdictions
All -Hazards
is the standard for building and
Ongoing
maintain local policies, ordinances, as well
infrastructure development.
as utilize state and federal standards as
they deem appropriate.
Revise as needed for plan update in relation
(Goal i) Objective z: Identify
to backup power for critical county
Power Failure
current power generation
Ongoing
facilities. Several generation capabilities
capabilities for critical facilities.
exist at critical facilities, but not all. The
county continues to identify further
generation needs.
(Goal i) Objective 2: Replace,
Revise as needed in relationship to securing
backup Some facility
Power Failure
restore, or purchase
Ongoing
power. critical
generators for critical facilities.
generators are aging and need to be
replaced.
(Goal i) Objective 3: Maintain
the black start capability of Elk
Not a county -level mitigation effort. This
will be addressed underthe Elk River
Power Failure
Delete
River Municipal Utilities Diesel
mitigation action chart. This is an ongoing
Power Plant.
project for Elk River Municipal Utilities.
Not relevant for MHMP update.
(Goal 2) Objective is Develop a
Jurisdictions maintain local policies,
Power Failure
Local Energy Assurance Plan
Delete
ordinances, as well as utilize state and
(LEAP).
federal standards as they deem
appropriate.
(Goal 3) Objective is Conduct a
public education campaign on
Revise as needed for plan update (under
power failure related issues.
public awareness and education). The
Power Failure
Educate the public on
Ongoing
county continues to educate the public on
generator maintenance and
power failure procedures, as well as work
safety. Inform public on shelter
with local jurisdictions and large private
locations in Sherburne County
businesses on emergency shelter needs.
i
in case of power outage.
Sherburne county has worked with
Partner with volunteer
volunteer agencies, private businesses, as
Severe
agencies to distribute severe
well as local jurisdictions at several
Thunderstorms
weather awareness and
Completed
community events, county fairs, safety
preparedness literature at
camps, and other community events to
community events.
spread severe weather awareness
literature.
Page IH-4
Sherburne County Multi -Hazard Mitigation Plan, 2020
Partner with NWS and the Red
Severe
Cross to publicize weather
Thunderstorms
spotter and citizen
preparedness training.
Publish news articles and
Severe
distribute literature to educate
Thunderstorms
the public on safe rooms and
shelter -in -place.
Continue and expand
Severe
participation in the Severe
Thunderstorms
Weather Awareness
Week campaign.
Publish articles in area
Severe
Thunderstorms
newspapers to instruct
citizens on shelter -in -place.
Develop/maintain a web
site for citizen information
such as shelter locations
Severe shelter in -place and safe
Thunderstorms room information citizen
training FEMA course
listing and links to hazard
preparedness websites.
Sherburne has partnered with both
Ongoing
organizations, hosted trainings, and will
continue to publicize citizen preparedness
training.
Sherburne distributes such literature during
Completed
severe weather, as well as directs the public
to several online resources regarding this
topic.
Sherburne County has a robust severe
Ongoing
weather week campaign and now regularly
participates in conjunction with NWS and
HSEM.
Sherburne has utilized social media, and
Completed
the internet to publish articles and
documents on the importance of shelter in
place.
Sherburne county utilizes their social media
Completed accounts and county website page to direct
citizens to this information.
Identify locations in which
Revise as needed for plan update.
Severe
citizens may need adequate
Sherburne county is in the process of
Thunderstorms
shelter in the case of high Ongoing
working with local jurisdictions on
winds.
identifying the need of shelters at outdoor
venues.
Build safe room in open space
Sherburne county is in the process of
Severe
areas, such as parks, to ensure
Ongoing
working with local jurisdictions on
Thunderstorms
adequate shelter during high
identifying the need of shelters at outdoor
winds.
venues.
Revise as needed for plan update. This is a
responsibility of mobile home park
Ensure access to storm
operators and municipalities where they
shelter in mobile home
are located. We encourage MHP's and cities
Severe
parks throughout Ongoing
to address this issue in local mitigation
Thunderstorms
Sherburne County by
efforts and will provide assistance as
building safe facilities in
appropriate. Sherburne county is in the
each park.
process of working with local jurisdictions
on identifying the need of shelters at
outdoor venues.
Page IH-5
Sherburne County Multi -Hazard Mitigation Plan, 2020
This will be covered under mitigation
Conduct a comprehensive actions for public awareness and education.
Extreme Sherburne county has a robust winter
public education campaign on Ongoing
Winter Storms winter storm preparations. weather week campaign, and now regularly
participates in conjunction with NWS and
HSEM.
Review and update FEMA
flood maps for Sherburne
Flooding County jurisdictions to
accurately map structures in
the floodplain, both
residential and commercial.
Participate in the pilot
program to assign a mass
Flooding letter of map amendment to
all flood insurance rate maps
in Sherburne County.
Working with local state, and federal
Ongoing zoning/mapping partners to accomplish
task.
Working with local state, and federal
Ongoing zoning/mapping partners to accomplish
task.
Revise as needed for plan update.
Conduct a comprehensive
Sherburne county and local jurisdictions will
Flooding
public education campaign
Ongoing
incorporate public education on flooding
on flooding.
during severe weather awareness week,
and other public safety events throughout
the year.
Continue to ensure that all
Every local jurisdiction participates in the
Flooding
communities participate in
Completed
NFIP.
the NFIP.
Determine number of
personnel who require
Wildfires
courses S-1.3o and S-i.9o.
Completed
Identified and offered training to personnel.
(Big Lake Fire Department,
Elk River)
Acquire resources for training.
Not relevant for MHMP update. This falls
Wildfires
(Big Lake Fire
Delete
under emergency response planning for fire
Department, Elk River)
fighting.
Train personnel in S-1-3o and S-
Wildfires
z9o. (Big Lake Fire
Completed
Identified and offered training to personnel.
_
Department, Elk River)
Add Firewise information to
Firewise information can be found on the
Wildfires
the City website. (City of
Completed
county website.
Zimmerman)
Include wildfire information
Wildfire information is shared every spring,
Wildfires
in the City flyer every
Completed
and throughout the fire season regarding
i
spring. (City of Zimmerman)
wildfire conditions and awareness.
Identify how "high hazard"
Revise as needed for plan update. This
Dam Failure
dam ranking of Elk River Dam
Ongoing
action will fall under the City of Elk River's
may be downgraded. Take
mitigation action chart. The city is actively
necessary steps to address.
updating dam plans, and resources.
Page IH-6
Sherburne County Multi -Hazard Mitigation Plan, 2020
Appendix
Works Cited
Page l -1
Sherburne County Multi -Hazard Mitigation Plan, 2020
Works Cited
(2013). Adapting to Climate Change in Minnesota: 2o13 Report of the Interagency Climate Adaptation
Team.
American Meteorological Society. (2004, October 8). Mobile Homes and Severe Windstorms. Retrieved
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CDC. (203.9, May 8). CDC's Social Vulnerability Index (SVI). Retrieved from ATSDR:
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Douglas, P. (2011, July 20). "Heat Storm" (record -setting dew point of 82 at MSP, heat index tied all-time
record atsz9!). Retrieved from StarTribune: http://www.startribune.com/blogs/3.258473.78.html
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333.pdf
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9i6o/fema_local_mitigation_hand book. pdf
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Sherburne County Multi -Hazard Mitigation Plan, 2020
FEMA. (2013, January). Mitigation Ideas: A Resource for Reducing Risk to Natural Hazards. Retrieved
from http://www.fema.gov/media-library-data/2oi30726-19o4-25045-
oi86/fema_mitigation_ideas_final5o8.pdf
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4f8f6fcigid26a924f679iic5eaa6848/FPM_i_Page_CriticalFacilities.pdf
FEMA. (n.d.). Step 3: Inventory Assets. Retrieved June 3.4, 2019, from FEMA:
https://www.fema.gov/pdf/plan/prevent/hazus/fema433_step3.pdf
Fu, X., Svoboda, M., & Tang, Z. (2o3.3, December). An overview of US state drought plans: crisis or risk
management? Natural Hazards, 69(3), 1607-1627. doi:https://doi.org/io.1007/siio6g-013-0766-
z
Georgakakos, A., Fleming, P., Dettinger, M., Peters-Lidard, C., Richmond, T., Reckhow, K., ... Yates, D.
(2014). Climate Change Impacts in the United States: The Third National Climate Assessment, Ch.
3: Water Resources. Washington, D.C.: U.S. Global Change Research Program.
High Plains Regional Climate Center. (203-4). Current Climate Summary Maps - Powered byACIS.
Retrieved from
http://www. hprcc.unl.edu/maps/current/index.php?action=update_userdate&daterange=Feb&
year=14
Huttner, P. (203.7, March 7). Retrieved from MPR News:
http://blogs.mprnews.org/updraft/2oi7/o3/extreme-minnesota-tornado-and-ice-out-records-
shattered/
ICAT, I. C. (2017). Adapting to Climate Change in Minnesota. St Paul: Minnesota Pollution Control
Agency.
International Climate Adaptation Team. (203.3). Adapting to Climate Change in Minnesota.
Kunkel, K., Stevens, L., Stevens, S., Sun, L., Janssen, E., Wuebbles, D., & ... Dobson, J. (2013). Regional
Climate Trends and Scenarios forthe U.S. National Climate Assessment. NOAA Technical
Report NESDIS, 142-3, 95.
MDH, M. D. (2o3.8). Planning forClimate & Health Impacts in Metro Minnesota. MDH Minnesota Climate
& Health Program.
Meador, R. (2oi3, February 27). Climate change comes to Minnesota: Three experts outline the impacts.
Retrieved from MinnPost: http://www.minnpost.com/earth-journal/2oi3/02/climate-change-
comes-minnesota-three-experts-outline-impacts
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Sherburne County Multi -Hazard Mitigation Plan, 2020
Minnesota Climatology Working Group. (2010, October 6). HydroClim Minnesota-October2010.
Retrieved from http://www.cIimate.umn.edu/doc/journal/hciol.o.htm
Minnesota Department of Health. (2o3.8). Summary of General Requirements for Manufactured Home
Parks. Retrieved from http://www.health.state.mn.us/divs/eh/mhprca/mhpgenreq.html
Minnesota Legislature - Office of the Revisor of Statutes. (2008, June ii). Warning Systems and
Emergency Procedures. Retrieved from Minnesota Legislature:
https://www.revisor.mn.gov/rules/6115-0490/
Minnesota Pollution Control Agency. (2017). Adapting to Climate Change in Minnesota. St. Paul:
Minnesota Pollution Control Agency. Retrieved September 13, 2oi8, from
https://www.pca.state.mn.us/sites/default/files/p-gen4-07c.pdf
Minnesota Pollution Control Agency. (2o3.8). Retrieved from http://pca-
gis02.pca.state.mn.us/eda_surfacewater/
MN Department of Public Safety. (n.d.). About Emergency Communication Networks. Retrieved June 14,
2019, from Minnesota Department of Public Safety:
https://dps.mn.gov/divisions/ecn/about/Pages/default.aspx
MN DNR. (2004). Heavy Rains Drench Southern Minnesota September14-15, 2004. Retrieved from
http://www.dnr.state.mn.us/cIimate/journaI/ffO4O9l4—l5.htmI
MN DNR. (2007). Heavy Rains Fall on Southeastern Minnesota: August 18-20, 2007. Retrieved from
http://www.dnr.state.mn.us/cIimate/journaI/ffO7o82o.htmI
MN DNR. (2011). Retrieved from
http://files.dnr.state.mn.us/forestry/wildfire/historialcharts/firesbyyear.pdf
MN DNR. (2014, March 3). Coldest Winters in Twin Cities History: 1873-2014. Retrieved from
http://www.dnr.state.mn.us/climate/journal/coldest_winters.html
MN DNR. (2015). Drought Monitor Overview. Retrieved from
http://www.dnr.state.mn.us/climate/journal/'4o8l4—drought.html
MN DNR. (2019, July 9). Minnesota Department of Natural Resources Infested Waters List. Retrieved
from http://www.eddmaps.org/midwest/tools/infestedwaters/
MN DNR. (n.d.). Minnesota Climate Trends. Retrieved from
https://arcgis.dnr.state.mn.us/ewr/climatetrends/#
MN Environmental Quality Board. (203-4). Minnesota and Climate Change: Our Tomorrow Starts Today.
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Sherburne County Multi -Hazard Mitigation Plan, 2020
Mueller, B., & Seneviratne, S. (2012). Hot days induced by precipitation deficits at the global scale.
Proceedings from the National Academy of Sciences, 12,398-12,403.
National Climate Assessment Development Advisory Committee. (203.3). Retrieved from
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National Drought Mitigation Center. (2o3.8). U.S. Drought Monitor. Retrieved from National Drought
Mitigation Center: https://droughtmonitor.unl.edu/CurrentMap.aspx
National Drought Mitigation Center. (n.d.). Drought Impact Reporter. Lincoln, Nebraska, USA.
Retrieved from https://droughtreporter.unl.edu/map/
National Drought Mitigation Center. (n.d.). Drought Impact Reporter Help - Impacts and Reports.
Retrieved August 2, 2019, from Drought Impact Reporter:
https://droughtreporter.unl.edu/help/dir/impactsandreports.aspx
National Institute of Building Sciences. (2017). Natural Hazard Mitigation Saves: 20171nterim Report.
National Weather Service Weather Forecast Office. (2014). Retrieved from
http://www.crh.noaa.gov/mkx/?n=taw-part4-tornado_stats
Natural Resources Defence Council. (203-5). The Need forFlood Protection Standards. Retrieved from
http://www.nrdc.org/water/fema-assistance-grants.asp
NCEI. (2o3.8, June). Climate at a Glance: Statewide Mapping. Retrieved from NOAA National Centers for
Environmental information: https://www.ncdc.noaa.gov/cag/
NOAA National Severe Storms Laboratory. (n.d.). Severe Weathersoz. Retrieved May 12, 203.4, from
https://www.nssl.noaa.gov/education/svrwx3.o3./lightning/faq/
NOAA. (n.d.). National Weather Service: Storm Data and Unusual Weather Phenomena. Retrieved from
http://www.crh.noaa.gov/images/mpx/StormData/stormApril200i.pdf
Perera, E. M., Sanford, T., White -Newsome, J. L., Kalkstein, L. S., Vanos, J. K., & Weir, K. (2012). Heat in
the Heartland. Climate Change and Your Health.
Phillips, A. (203.4, March 24). Landslide Kills 8 People In Washington As Climate Change Makes Them
More Likelyln The Future. Retrieved from Climate Progress:
http://thinkprogress.org/climate/2oi4/03/24/343.8ii7/climate-change-landslides-washington/
Pryor, S., Scavia, D., Downer, C., Gaden, M., Iverson, L., Nordstrom, R., ... Robertson, G. (2014).
Climate Change Impacts in the United States: The Third National Climate Assessment, Ch. 18:
Midwest. Washington, D.C.: U.S. Global Change Research Program.
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Schoof, J. (2012). Scale Issues in the Development of Future Precipitation Scenarios. Journal of
Contemporary Water Research and Education, 8-16.
Seeley, M. (2013). Current status of climate change in Minnesota. Preparing Minnesota for Climate
Change: A Conference on Climate Adaptation. St. Paul.
Seeley, M. (2015). Minnesota Weather Almanac. St. Paul: Minnesota Historical Society Press.
Sepic, M. (203.7, June 14). In storm season, mobile home park tenants seek bettershelter. Retrieved from
MPR News: https://www.mprnews.org/story/2oi7/o6/3-4/in-storm-season-mobile-home-park-
tenants-seek-better-shelter
Sherburne County. (2019). Communities. Retrieved from
https://www.co.sherburne.mn.us/23.6/Communities
Sherburne Soil & Water Conservation District. (2o3.8). Sherburne County Local Water Management Plan.
The National Drought Mitigation Center. (2oi8). Background. Retrieved from United States Drought
Monitor: https://droughtmonitor.unl.edu/AboutUSDM/Background.aspx
The Weather Channel. (2014, March 13). NOAA: Winter 2013-2014 Among Coldest on Record in Midwest;
Driest, Warmest in Southwest. Retrieved from http://www.weather.com/news/news/winter-
ncdc-state-cI imate -repo rt-2oi3-2oi4-20140313
The White House. (2015, January 3o). FACT SHEET: Taking Action to Protect Communities and Reduce the
Cost of Future Flood Disasters. Retrieved from
https://www.whitehouse.gov/administration/eop/ceq/Press_Releases/JanuarY_3o_2oi5
U.S. Climate Data. (n.d.). Climate Elk River- Minnesota. Retrieved from
https://www.uscIimatedata.com/climate/elk-river/minnesota/united-states/usmnog8g
U.S. Department of Energy. (2015). State of Minnesota Energy Sector Risk Profile. Retrieved from
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pdf
Union of Concerned Scientists. (2009). Confronting Climate Change in the U.S. Midwest.
United States Department of Agriculture. (n.d.). Soil Survey of Sherburne County, Minnesota. Retrieved
from
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US Army Corps of Engineers. (2oo8, April). National Inventory of Dams Methodology - State & Federal
Agency Manual. Retrieved July 3, 203.9, from https://www.nc.gov/:
https://files.nc.gov/ncdeq/Public%2oRecords%2o2/DEMLR/NlDmanual2oo8.pdf
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USDM. (n.d.). Drought Classification. Retrieved from United States Drought Monitor:
https://droughtmonitor.unl.edu/AboutUSDM/AbouttheData/DroughtClassification.aspx
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Sherburne County Multi -Hazard Mitigation Plan, 2020
Appendix J
Plans & Programs in Place
PageIJ -s
Sherburne County Multi -Hazard Mitigation Plan, 2020
Planning & Regulatory
PlanslPrograms
Comprehensive/Master Plan
YeslNr.
Yes
Capital Improvements Plan
Yes
Economic Development Plan
Yes
Emergency Operations Plan
Yes
Climate Adaptation Plan
No
Continuity of Operations Plan
Yes
Transportation Plan
Yes
Stormwater Management Plan
Yes
Community Wildfire Protection Plan
INo
FireWise Program
Yes
Water Conservation/Emergency Preparedness Plan
Yes
Wellhead Protection Plan
No
Database of dry hydrants/well access
INo
Burning permits/restrictions
Yes
Water Management Plan
Yes
Zoning ordinance
Yes
Subdivision ordinance
Yes
Floodplain ordinance
Yes
Natural hazard specific ordinance (stormwater, steep slope, wildfire)
Yes
Flood insurance rate maps
Yes
Acquisition of land for open space and public recreation uses
Yes
School closing policy/communications plan in event of inclement
weather/temperatures (The school districts decide this)
Storm shelters (list all locations)
Warning sirens (list all locations)
SKYWARN Program
CodeRED Mass Notification System
Severe Weather Awareness Week
No
No
Yes
No
Yes
Yes
Winter Weather Awareness Week
Yes
NOAA Weather Radios
Yes
THIRA
Yes
Other *please describe (Sherburne has a regional THIRA)
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Sherburne County Multi -Hazard Mitigation Plan, 2020
Administrative & Technical
Planning Commission Yes
Mitigation Planning Committee Yes
Maintenance programs to reduce risk (e.g., tree trimming, clearing Yes
drainage systems)
Mutual aid aareements Yes
Chief Building Official
Yes
Floodplain Administrator
Yes
Emergency Manager
Yes
Community Planner
Yes
Civil Engineer
Yes
GIS Coordinator
Yes
Warning systems/services
Yes
(Reverse gii, outdoor warning signals)
rHHazard data and information Yes
azus analysis No
Education & Outreach
Pr ogramlOrganization I
Local citizen groups or non-profit organizations focused on
environmental protection, emergency preparedness, access and Yes
functional needs populations, etc.
Ongoing public education or information program (e.g., responsible
water use, fire safety, household preparedness, environmental Yes
education)
Natural disaster or safety related school programs No
Storm Ready certification Yes
Firewise Communities certification Yes
Public -private partnership initiatives addressing disaster -related Yes
issues
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Sherburne County Multi -Hazard Mitigation Plan, 2020
Appendix K
Local Mitigation Survey Report
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Sherburne County Multi -Hazard Mitigation Plan, 2020
As part of Sherburne County's Multi -Hazard Mitigation Plan update, participating jurisdictions and
county personnel were asked to participate in filling out a two-part "Local Mitigation Survey" form. The
purpose of the survey was to gather information needed to support update of the plan and
development of local -level mitigation actions for the next five-year planning cycle. Following are the
responses from the county departments and jurisdictions that participated in the survey.
SHERBURNE COUNTY
Part A: Past Events & Vulnerability Assessment
1. In the last 5 years, has your community experienced any severe weather or disaster events
that posed risk to life safety, caused property damage, or incurred costs for recovery? Yes.
Sherburne County has experienced heavy rain, heavy snowfall, flooding, and tornados. In
March of 2017 Sherburne County was greatly impacted by one of the earliest recorded tornados
in the state of MN. The storm caused damage to private properties, trees, power lines and local
roadways.
March 6, 2017 a tornado touched down in Orrock/Blue Hill/Baldwin townships. Trees/debris that
fell on CR 4, CR 3.5, CR 42, CR g, and CR 2 were quickly removed and cleaned up.
Every year there are trees that fall on to county roads that partially or totally block the roadway.
The road is typically cleared in 2 hours or less.
Nearly every year there are areas of high water on or near county roads generally in the late
winter/early spring due to rapid snow melt combined with a substantial rainfall. Impact is
usually minimal and short duration.
Power outages have resulted in traffic signals without battery backup to cease to function.
Every winterthere are snow and ice events that contribute to risk of injury, death, and/or
property damage.
2. In the last 5 years, has your community taken any particular actions to reduce the
vulnerability of your community against future severe weather or disaster events? Public
Information Initiatives to inform our residents with things such as severe weather week, and
winter awareness week and through our social media pages (Facebook, Twitter).
As part of our Maintenance and Construction programs trees are trimmed or removed from the
Right -of -Way where possible. This helps to minimize road blockages and downed power lines.
Over the past 5 years we have increased our level of service for snow and ice events.
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Sherburne County Multi -Hazard Mitigation Plan, 2020
Sherburne County adopted Countywide Zoning in 3-971. and Building Code in 1972 so structures
built since then have been required to meet code, ensuring that they are better able to
withstand severe weather and disaster events.
In the last 20 years the Planning & Zoning Department has developed a very comprehensive
permit review program that includes review of the FEMA Flood insurance maps and we always
ensure that new structures meet the Floodplain rules. With heavy development pressures this
has prevented allowing construction that would be at risk for flooding. In the last 5 years this
program has only become better as we have gotten better aerial mapping and more accurate
flood mapping. We had a comprehensive flood study done with maps approved in 2011.
New residential and commercial development is required to meet MPCA stormwater standards
and are required to obtain and National Pollutant Discharge Elimination System (NPDES) and
the county requires a copy of this before approvals are granted. All the townships have
drainage standards that meet or exceed the required rainfall events. Each project has to provide
the county with a Stormwater Pollution Prevention Plan (SWPPP) before the county grants
approval through the platting process. The county keeps employees on staff that are qualified
through training to review these plans.
The County Board agreed to delaying the septic compliance requirements for permits with the
Zoning Office being able to issue permits for damage repair with agreements with property
owners that septic compliances would be done by June 1st. This enabled faster repairs.
3. In the past 5 years, has anything, especially related to zoning or development, changed
that you feel has increased your community's vulnerability to future severe weather or
disaster events? Sherburne County experienced high volumes of development in the 199o's
and again picking up in the last 5 years. With increased populations there is a higher risk of
damage, but we feel that with strict stormwater requirements the risk is reduced.
Development that has occurred in Sherburne County's unincorporated areas in the last 25 years
has had to meet a three-foot minimum separation from the highest known water table in an
effort to prevent structure flooding in high volume rain events. This has also kept structure back
from wetland areas that could also create onsite flooding.
In Shoreland areas, the county has a 25% impervious surface rule per the State Rules, but there
has been an increase of variances applied for and granted in the last 5 years. Staff urges the
maintenance of this rule.
4. What concerns do you have / what mitigation actions do you think would help your
community to reduce or eliminate risk against future severe weather or disaster events? We
would like to upgrade the county outdoor warning system. We have started to contact vendors
regarding siren types, and the best option for our county.
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Sherburne County Multi -Hazard Mitigation Plan, 2020
We would also like to look at storm shelter options for local campgrounds and RV parks.
Obtain Changeable Message Boards to relay information to the public. Minimum needed would
be 2, but 4 would provide a higher level of service during severe weather or disaster events.
Obtain a "Road Closure" Trailer. This trailer would be equipped all necessary equipment, signs,
safety equipment and barricades necessary for an emergency road closure. This trailer could be
attached to any public works or sheriff truck at a moment's notice ready for deployment.
Ensure that our COOP emergency plan is up to date and current.
Participate in Hazard/Mitigation planning events and learn from those experiences.
Part B: Local Mitigation Capabilities Assessment
1. What plans, authorities, or policies are in place to help accomplish mitigation in your
community? The county has both a Long Range Transportation Plan and a 5 Year Capital
Improvement Plan that identifies road improvement projects.
Right of Way Permits and permit process for utilities that occupy our public road right of way.
Snow and Ice Control procedures.
Tree trimming and/or removal within the Right -of -Way.
Storm Water Pollution Prevention Program (SWPPP) and Ordinance.
Right of Way Ordinance.
We have a 3o-year Comprehensive Land Use plan that goes out to 2030, but is scheduled for
updating in 2020.
The County Zoning Ordinance includes all unincorporated areas of the County except Becker
Township and a portion of Haven Township. This ordinance is continually updated as rules
change and if issues are anticipated.
The County has a Floodplain Ordinance that exists in the Zoning Ordinance. We participate in
the National Flood Insurance Program (NFIP).
The County Zoning Department has agreements with several townships for satellite offices in
the event of a disaster that prevents the use of the government center office or if it is necessary
for us to locate closer to a disaster event for convenience to landowners or for necessity for
structural inspections of damaged structures.
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Sherburne County Multi -Hazard Mitigation Plan, 2020
The Zoning Department employs a Building Official and inspectors that enforce the Uniform
Building Code and who would assess structural damage. We would reach out to adjoining cities
and counties for assistance if necessary.
Other plans include the County COOP Plan, Debris Management Plan and Solid Waste
Management Ordinance.
2. What staff (organizational capacityl are in place to help accomplish mitigation in your
community? Sherburne County council includes a Public Safety Committee.
The county has its own GIS Specialist/I.T. Director.
The county has a Public Works Director/Supervisor that address road issues or flooding prone
roadways.
The county has an entire Public Works Department; including road maintenance, engineering,
GIS, surveying, and construction.
The county has a designated Emergency Service Manager.
The county has a Building Official and inspectors to assess structural damage and interpret
Building code.
The county has a Zoning Administrator and Assistant Zoning Administratorto interpret
ordinances and follow the COOP plan.
The county has a Solid Waste Administrator to oversee debris disposal and cleanup activities.
For each city jurisdiction, there is a designated Emergency Manager.
What programs are in place to help accomplish mitigation in your community? The county
offers an emergency alert system (CODE RED) and provides information on the county website
on howto sign up for alerts.
The county also participates in the National Weather Service's annual Severe Winter/Spring
Weather Awareness Week. We post severe weather awareness information out on our Sheriff's
Facebook page and Twitter page.
Local fire departments have open houses and hold fire safety presentations in schools.
Local schools practice tornado drills on an annual basis.
Every year we complete street sweeping, catch basin and outfall maintenance, and culvert
cleaning to help keep the drainage systems functioning.
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Sherburne County Multi -Hazard Mitigation Plan, 2020
Public Works participates in training activities with the Sheriff's Office in the EOC.
Annual safety training.
Periodic participation in Disaster Mitigation planning events - usually a couple a year.
4. What funding or other resources are available to help accomplish mitigation in your
community? Sherburne County collaborates with their state and federal partners to address
mitigation efforts, and ideas stemming from previous disasters within the county.
Sherburne County is recognized as a Firewise Community and can apply for MN DNR Firewise
grant money if needed.
Limited other than County Levy/Tax Dollars.
S. What program gaps or deficiencies do you feel exist that are a barrier to accomplishing
mitigation in your community? Lack of awareness throughout the county regarding the
county's emergency alert system.
The lack of storm shelters at campgrounds or parks.
Our Right -of -Way Re-establishment Procedures need to be consistently and fully supported by
all county commissioners and the county administrator.
Emergency response equipment for our roads and emergency road closures.
GIS staffing and resources to more proactively plan for and prepare for emergency events.
rt C: Contributors & Time
Derek Baas, Deputy Director of Emergency Services, z hours
Marlin Marquette, Maintenance Superintendent, 1 hour
Andrew Witter, Public Works Director, 1.5 hours
Nancy Riddle, Planning & Zoning Administrator, z hours
Dave Lucas, Solid Waste Administrator, 1 hour
Lynn Waytashek, Assistant Zoning Administrator, 30 minutes
Mitch Glines, Zoning Specialist, 1 hour
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Sherburne County Multi -Hazard Mitigation Plan, 2020
CITY OF BECKER
Part A: Past Events & Vulnerability Assessment
1. In the last 5 years, has your community experienced any severe weather or disaster events
that posed risk to life safety, caused property damage, or incurred costs for recovery? We
have noted minor damage around community due to inclement weather. Timeframe and
amount of damage has varied. Typical damage has been to trees, vehicles, or to houses around
the community.
2. In the last 5 years, has your community taken any particular actions to reduce the
vulnerability of your community against future severe weather or disaster events? Our
streets dept has made numerous updates/upgrades to several streets within the city and this
includes updating the storm water sewer system at the same time.
Road improvements will continue underthe City capital improvement plan.
The police department has been utilizing social media (Facebook) and NIXLE to update and
communicate with the public related to events and weather affecting the City.
In the past 5 years, has anything, especially related to zoning or development, changed
that you feel has increased your community's vulnerability to future severe weather or
disaster events? No.
4. What concerns do you have / what mitigation actions do you think would help your
community to reduce or eliminate risk against future severe weather or disaster events?
The City continues to update its infrastructure which is starting to age (streets, sewer,
wastewater).
The City is in the process of purchasing an additional mobile generatorto be used for lift
stations, or where needed. In addition, City Hall is also looking at a generator should power go
out.
For security purposes, the City is also beginning to install security cameras to protect all city
properties and buildings.
Part B: Local Mitigation Capabilities Assessment
1. What plans, authorities, or policies are in place to help accomplish mitigation in your
community? Emergency Operations Plan (due for review in 2021)
Comp Plan is currently under review
City Code is currently under review
Page I K - 7
Sherburne County Multi -Hazard Mitigation Plan, 2020
2. What staff (organizational capacity) are in place to help accomplish mitigation in your
community? City Council — Police Management committee
City Council — Streets Committee
City Council — Parks and Recreation Committee
City Council — Community Development/EDA
Joint committee Township/City — Fire Department
Police Chief is the designated Emergency Manager
The City of Becker contracts IT services with a private contractor
What programs are in place to help accomplish mitigation in your community? Safety Camp
— youth ages 9-12
Fire Department Open house during fire prevention week
Nightto Unite
Use of Social Media
Police Department on occasion will assist with tornado drills at the schools
4. What funding or other resources are available to help accomplish mitigation in your
community? Unaware of what might be available.
5. What program gaps or deficiencies do you feel exist that are a barrier to accomplishing
mitigation in your community? Training for staff related to emergency management.
Funding related to emergency management or for the acquisition of any equipment to assist in
that endeavor.
Mobile home management is absent regarding any future plans, storm shelter upgrades, etc.
NIXLE — our messaging system only has a couple hundred signed up for messages/emails.
Part C: Contributors & Time
Brent Baloun, Police Chief, 3o minutes
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Sherburne County Multi -Hazard Mitigation Plan, 2020
CITY OF BIG LAKE
Part A: Past Events & Vulnerability Assessment
1. In the last 5 years, has your community experienced any severe weather or disaster events
that posed risk to life safety, caused property damage, or incurred costs for recovery? Yes,
we have experienced heavy wind, rain and hail storms that have damaged city facilities and
residential homes. In 2oi3 and 203.7 we have had at least two tornados damage areas of Big
Lake Townshipjust north of the city. In 2017 we did have a substantial thunderstorm with wind
shear that did take down some trees, but again with minimal impact. In 2019, we had a serious
issue with the potential loss of natural gas due to capacity issues during severely cold weather.
Although our City felt no severe impact, citizens had to turn down heat. The department spent
a day preparing for sheltering and evacuation due to prolonged natural gas supply issues.
2. In the last 5 years, has your community taken any particular actions to reduce the
vulnerability of your community against future severe weather or disaster events? Yes, in
development areas and road reconstructions the City Engineer is ensuring proper drainage.
The city has also created a new user-friendly website for information as well as the local Police
Department using the NextDoor app and Facebook to keep citizens informed with up-to-date
safety tips, information, and critical safety information when appropriate.
The City has also begun planning for a Full Time Fire Chief and Emergency Manager to better
prepare.
In the past 5 years, has anything, especially related to zoning or development, changed
that you feel has increased your community's vulnerability to future severe weather or
disaster events? Yes, since the last update of the plan there has been approximately Zoo new
homes built in the city of Big Lake and around 3.00-3.5o new homes in the township which could
have an adverse effect to costs in the event of a tornado, wind or hail event. Heavy construction
and growth continues to stretch city resources thinner, which could impact our preparation and
post -event needs significantly.
4. What concerns do you have / what mitigation actions do you think would help your
community to reduce or eliminate risk against future severe weather or disaster events? I
think the community does very well with information and preparedness. The police department
monitors all weather and takes appropriate actions based upon the potential for severe
weather. Continued education for the local population on preparedness should be ongoing.
It would also be beneficial to have a new storm shelter for our local trailer park and a storm
shelter for our local school sports complexes.
I would like to see a stronger plan in place for those who have no basements, and for our trailer
park to ensure all places have quick and immediate access to storm shelters.
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Sherburne County Multi -Hazard Mitigation Plan, 2020
Part B: Local Mitigation Capabilities Assessment
1. What plans, authorities, or policies are in place to help accomplish mitigation in your
community? We have a new city comprehensive plan in place to help guide growth within the
city, we have floodplain ordinances, and we have implemented CIP plans to lay out all of our
road improvement projects for the next 20-30 years.
2. What staff (organizational capacity) are in place to help accomplish mitigation in your
community? The Police Chief is the city's Emergency Manager, we have a city engineer and
public works direct for road maintenance and design, a community development coordinator,
an assistant fire chief that is a certified MN Emergency Manager, and a very engaged well
working city council that backs the needs of its citizens and public safety departments. I feel
strongly that the duties of the emergency manager for the City need to shift to a full-time
dedicated Fire Chief, to allow the Chief of Police to focus on police department activities in
times of crisis.
What programs are in place to help accomplish mitigation in your community? Our schools
practice tornado drills and participate in community events with law enforcement and fire. The
fire department has an annual open house on fire safety and does fire prevention in the schools.
The police department holds and coordinates annual Night to Unite events and involves all of
the first -responding agencies to engage the community. The police and fire departments are
also very active on Facebook to keep citizens informed and up to date on things happening in
the community.
4. What funding or other resources are available to help accomplish mitigation in your
community? We work closely with the county, DNR, and other necessary entities when it
comes to roads, homes, and other projects in our shoreland management areas and flood
plains. I would like to see more of a countywide effort as it relates to funding. I know there are
many opportunities, but with so many roles for the Emergency Manager to serve, I don't have
the time to search for, and undertake grant funding.
5. What program gaps or deficiencies do you feel exist that are a barrier to accomplishing
mitigation in your community? I think there should be a much bigger push to the residents on
the county's emergency alert systems, perhaps more interaction from county partners on
assessing and educating the needs for the township. I would love to see some training session
on this, and work to address using these systems countywide.
Part C: Contributors & Time
Seth W. Hansen, Assistant Fire Chief/City Councilman, i hour
Joel Scharf, Chief of Police & Emergency Manager, i hour
Page I K - io
Sherburne County Multi -Hazard Mitigation Plan, 2020
CITY OF CLEAR LAKE
Part A: Past Events & Vulnerability Assessment
1. In the last 5 years, has your community experienced any severe weather or disaster events
that posed risk to life safety, caused property damage, or incurred costs for recovery? No.
2. In the last 5 years, has your community taken any particular actions to reduce the
vulnerability of your community against future severe weather or disaster events? Yes, we
have sent out notices in regards to the county emergency alert system as well as notifications
are being made on the City's Facebook page.
In the past 5 years, has anything, especially related to zoning or development, changed
that you feel has increased your community's vulnerability to future severe weather or
disaster events? No.
4. What concerns do you have / what mitigation actions do you think would help your
community to reduce or eliminate risk against future severe weather or disaster events?
Continue to encourage residents to sign up for CodeRED.
Part B: Local Mitigation Capabilities Assessment
1. What plans, authorities, or policies are in place to help accomplish mitigation in your
community? We have a floodplain ordinance and a comprehensive plan.
2. What staff (organizational capacityl are in place to help accomplish mitigation in your
community? Our Fire Chief is the City's designated Emergency Manager. We have a City
Engineer and a Public Works Director that assess all road maintenance needs.
What programs are in place to help accomplish mitigation in your community? Our Fire
Department hosts an annual open house event; we even visit our local daycares. We report any
and all pertinent information on our Facebook page. We encourage our residents to sign up for
the county's emergency alert system.
4. What funding or other resources are available to help accomplish mitigation in your
community? N/A.
5. What program gaps or deficiencies do you feel exist that are a barrier to accomplishing
mitigation in your community? Not all residents are signed up for the county's emergency
CodeRED alert system.
Part C: Contributors & Time
Kari Mechtel, City Clerk, i hour
Page I K - ii
Sherburne County Multi -Hazard Mitigation Plan, 2020
CITY OF ELK RIVER
Part A: Past Events & Vulnerability Assessment
1. In the last 5 years, has your community experienced any severe weather or disaster events
that posed risk to life safety, caused property damage, or incurred costs for recovery? Yes.
Elk River has had a total of 57 historical tornado events that had recorded magnitude of 2 or
above with ioo tornado events since 3.950. In addition, the city has had severe weather with
straight line winds and heavy rain with hail causing damage to City buildings and infrastructure.
In 2017 there was severe weather during the time of the Sherburne County Fair which luckily
had occurred right before the fair started so there were only the workers on site. They had to
seek shelter at the nearby fire station due to no storm shelter on the fairgrounds. If the weather
happened during the actual fair, the fire station would be inadequate to hold more than Soo
people.
This severe storm with straight line winds also resulted in damage to several park facilities with
hundreds of trees being uprooted or damaged causing hazards along city streets and trails.
Additionally, the City Hall, Library and Public Safety campuses had damage along with
uprooted trees.
Elk River's Municipal utilities experience the same storm which caused property damage to
overhead electric facilities from trees. In addition, they had damage to electronic equipment
from lightning strikes.
2. In the last 5 years, has your community taken any particular actions to reduce the
vulnerability of your community against future severe weather or disaster events? Yes, the
city conducted hazard tree assessments of all publicly owned trees within active use areas of its
parks. Trees were evaluated based on the U.S. Forest Service model hazard tree assessment
and assigned a hazard rating of i-7. Trees with a rating of 4-7 were identified as having defects
which may result in failure of part or the entire tree and requiring corrective action. Staff
assessed each tree with a rating above 4 and performed the corrective actions required to
include pruning or complete removal. Annual assessments are conducted by certified tree
inspectors of all trees within active use areas of parks. Trees along trail, sidewalk and road
corridors are not evaluated, however hazard trees that are identified during the general course
of daily assignments are documented and follow-up treatment conducted.
In the past 5 years, has anything, especially related to zoning or development, changed
that you feel has increased your community's vulnerability to future severe weather or
disaster events? In the last five years we have seen population growth with a new Boo -home
development on the east side of the city, as well as the establishment of an outdoor motor
cross track on the north side of town. At times there are 5,000 plus people at this outdoor venue
with two campgrounds and no storm shelter.
Page I K - 12
Sherburne County Multi -Hazard Mitigation Plan, 2020
Elk River is an active senior community with a large portion of the population over 50. This is
only one of the vulnerable populations at risk, the city has also seen the increase in apartment,
townhome, and senior living.
4. What concerns do you have / what mitigation actions do you think would help your
community to reduce or eliminate risk against future severe weather or disaster events?
The city is in need of 3 storm shelters, one located at the motor cross track (ERX), one for the
Sherburne County Fairgrounds, and having the projected new ice arena/community center as
the third. All 3 of these venues have the potential for 3,00o plus citizens in a large outdoor area
with no shelter from storms. There is also a need for a vulnerability assessment to be done with
recommendations for upgrades to city services to create a more resilient community.
Part B: Local Mitigation Capabilities Assessment
1. What plans, authorities, or policies are in place to help accomplish mitigation in your
community? We have an Incident Action Plan for the local dam, along with a back-up EOC to
the Sherburne County Emergency Management. In addition, we have 3.7 warning sirens located
throughout the city.
2. What staff (organizational capacity) are in place to help accomplish mitigation in your
community? Fire Chief is the City's designated Emergency Manager.
We have a City Engineer and a Public Works Director that address road maintenance issues for
flooding (culverts, repetitive flooding).
ERMU has an Electric Superintendent for coordination of electricity restoration and a Water
Superintendent for coordination of water supply.
What programs are in place to help accomplish mitigation in your community? The city
participates in the county's emergency alert system. We have a link on our website for
residents to sign up for the system.
The city participates in the annual Severe Winter/Spring Weather Awareness Week by posting
severe weather awareness information out on our city Facebook page.
Our fire department has open houses on fire safety and presents in the schools.
Our local school practices tornado drills on an annual basis.
Each fall & spring we do active outreach to homeowners to clear leafy and woody debris from
roadside gutters to prevent clogging and over the road flooding in these areas.
ERMU uses MNWarn which is mutual aid for all water related resources. ERMU offers mutual
aid for electric, water, and APPA which can assist with mutual aid for electric. They also have a
call center for any water or electric emergencies.
Page I K -13
Sherburne County Multi -Hazard Mitigation Plan, 2020
4. What funding or other resources are available to help accomplish mitigation in your
community? The Fire Chief/Emergency Manager has been working with HSEM on the
possibility of applying for Mitigation Grants to assist with the building of storm shelters. We
have applied and received grant funding from MN DNR Firewise for the last several years
5. What program gaps or deficiencies do you feel exist that are a barrier to accomplishing
mitigation in your community? We need to complete a comprehensive mitigation plan for the
city to address any vulnerability to all hazards.
The city needs funding assistance to buy out residential properties and improve roads and
culverts that experience repetitive flooding.
The inclusion of an education and training program forthe community would go a long way to
helping build a safer, prepared and resilient community against all disaster.
Part C: Contributors & Time
Mark Dickinson, Fire Chief, 3 hours
Tim Sevcik, Street and Park Superintendent, i hour
Mike Tietz, ERMU assistant supervisor, i hour
Brandon Wisner, Storm water Coordinator, i hour
CITY OF PRINCETON (Partially located in Sherburne County)
Part A: Past Events & Vulnerability Assessment
1. In the last 5 years, has your community experienced any severe weather or disaster events
that posed risk to life safety, caused property damage, or incurred costs for recovery? In the
past 5 years the city of Princeton has experienced numerous flooding events following heavy
rains. When we have a high rain event we expect there will be localized flooding in the
southwest and southeast corner of the city that is within Sherburne County. This affects the
airport in the southwest corner and the golf course and waste water treatment plant on the
southeast corner. The Rum River rises every spring when the snow melt comes from the north
or there is a lot of rainfall in northern MN. Princeton has had tornado's travel through the north
and south side of city.
2. In the last 5 years, has your community taken any particular actions to reduce the
vulnerability of your community against future severe weather or disaster events? The bank
of the Rum River was raised by the waste water plant and vegetation was planted on the bank
to help with erosion. Emergency management has been looking at options to help with the
Page I K - 3.4
Sherburne County Multi -Hazard Mitigation Plan, 2020
flooding. Emergency management is also adding more information to the city website for the
citizens. The City has worked to reduce problems in the park from the flooding and protect the
campground and bathroom. Emergency Management is also building a website that can be
attached to the city website to provide information to the public about emergency
preparedness.
In the past 5 years, has anything, especially related to zoning or development, changed
that you feel has increased your community's vulnerability to future severe weather or
disaster events? Not yet. There are some plans that a senior 55+townhomes may be built in an
area that would be subject to flooding, but nothing has materialized from those plans yet.
Every year it seems that the potential for flooding increases. We also are experiencing some
interest in more building on the south side of our city. The City is also looking at senior citizens
population increasing in our area.
4. What concerns do you have / what mitigation actions do you think would help your
community to reduce or eliminate risk against future severe weather or disaster events? For
the area of the city of Princeton within Sherburne County: One of the issues we have run into is
that the Rum River and the West Branch of the Rum River are not included in flood forecasting.
We could use more monitoring gauges along the river and it would be great to have the
hydrologic forecasting. Also, one area that our Soil and Water dept. has concerns about is the
neighborhood behind Coborn's. There is a housing development, golf course and wastewater
treatment plant that may be subject to flooding when the water levels rise. The airport is also
somewhat close to a high-water mark and may be impacted depending on conditions. We also
have poor coverage for warning sirens near the airport and the golf course. Highway 1.69 blocks
a lot of the siren sounding due to traffic. With the industrial park in the south side of the city,
they often do not hear the sirens when they test. We are also in need of some storm shelters
near the golf course.
Part B: Local Mitigation Capabilities Assessment
1. What plans, authorities, or policies are in place to help accomplish mitigation in your
community? We are currently developing a new updates comprehensive plan for the city.
There is not one on file that would cover the city effectively. Emergency Management also
works with the industrial park owners and public for severe weather and active shooter/intruder
programs. The Cityjust recently participated with Sherburne County on installing a round-
about on the south side of the city to relieve some of the traffic congestion.
2. What staff (organizational capacity) are in place to help accomplish mitigation in your
community? The City of Princeton has an organizational chart for Emergency Management.
The Fire Chief holds the position of Emergency Manager Director and the Public Works Director
and Police Chief act as Deputy Directors. The City Engineer and the Public Works Director
Page I K -15
Sherburne County Multi -Hazard Mitigation Plan, 2020
address road maintenance issues for flooding events. The Fire Chief will go outspeak to City
residents as requested about severe weather and fire safety.
What programs are in place to help accomplish mitigation in your community? The city
participates in the County's emergency alert system. We have a link on our website for the
residents to sign up for on the system. Our Fire dept. has open houses and operates for a full
week during fire prevention week to talk about fire safety and severe weather. We get out in
the community for "Nite to Unite". All of our schools hold their annual tornado drill, 5-fire drills,
and 5-lockdown drills. The public works departments will often sweep the streets do remove
the debris. The City also posts information about severe weather week on the City website and
Facebook page.
4. What funding or other resources are available to help accomplish mitigation in your
community? The City works with the counties that we reside in to address mitigation efforts
following past disaster events such as the July, 2oi6 tornado. The city is aware of some state
and federal grants available to us. We try to apply for these grants as needed. We also try to
budget for upcoming repairs and emergencies.
5. What program gaps or deficiencies do you feel exist that are a barrier to accomplishing
mitigation in your community? We need to update our Comprehensive plan to address the
future hazard events. Flooding and warning sirens. The city needs funding to improve roads,
culverts and river banks that experience flooding. We need to improve our communications
with the city residents by updating our website and emergency management planning. Not all
residents are signed up for the county's emergency alert system.
Part C: Contributors & Time
Julie Peterson, Mille Lacs County Emergency Management Director, i hour
Ron Lawrence, City of Princeton Fire Chief/EM Director, 2.5 hours
CITY OF ST. CLOUD (Partially located in Sherburne County)
Part A: Past Events & Vulnerability Assessment
1. In the last 5 years, has your community experienced any severe weather or disaster events
that posed risk to life safety, caused property damage, or incurred costs for recovery? The
southeast portion of the City of St. Cloud has experienced flooding and minor storm damage in
the last five years. None of this resulted in any significant damage that required emergency
response or recovery efforts.
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Sherburne County Multi -Hazard Mitigation Plan, 2020
2. In the last 5 years, has your community taken any particular actions to reduce the
vulnerability of your community against future severe weather or disaster events? We have
continued to do public education on receiving timely information on threats and hazards in the
community. We offer the service to sign up for SmartWeather alerts and encourage people to
pay attention to changing weather conditions before leaving home.
In the past 5 years, has anything, especially related to zoning or development, changed
that you feel has increased your community's vulnerability to future severe weather or
disaster events? No appreciable changes to note at this time.
4. What concerns do you have / what mitigation actions do you think would help your
community to reduce or eliminate risk against future severe weather or disaster events?
Continued expansion of the community's outdoor warning siren program and encouragement
for use of weather radios and apps to receive alerts for hazards impacting the area. There are a
lot of apartment buildings, a prison, an elementary school, two long term care facilities and
senior housing complexes in this area that want as much notice as possible to weather alerts.
Having a way to receive warnings and alerts, developing plans, providing training and exercising
are critical to keeping people as safe as possible during severe weather events.
Part B: Local Mitigation Capabilities Assessment
1. What plans, authorities, or policies are in place to help accomplish mitigation in your
community? The City of St. Cloud participates in the National Flood Insurance Program (NFIP).
The City has a 3.5-20 year Comprehensive Plan that was implemented in 2015.
The City has a Capital Improvement Program for the years of 2019-2024.
The City has a Land Development Code that regulates how land can be developed within the
City.
2. What staff (organizational capacity) are in place to help accomplish mitigation in your
community? All City Departments have a role in mitigation efforts in some capacity, whether
that be setting policy, funding projects or actually doing the work. Emergency Management is
the lead department on mitigation related activities. Emergency Management is a Department
of Stearns County that the City contracts with for services. The following is a list of all
departments in the City of St. Cloud: Aging Services, Airport, Assessor, Building Safety,
Economic Development, Engineering, Finance, Fire, Health and Inspections, Human Resources,
Legal, MAC, Parks and Recreation, Planning and Zoning, Police, Public Utilities, Public Works,
RSVP and Whitney Senior Center.
What programs are in place to help accomplish mitigation in your community? The City
promotes the use of the SmartWeather alert system where residents can sign up to receive
alerts and warning of their choosing.
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Sherburne County Multi -Hazard Mitigation Plan, 2020
The Emergency Management Department provides education during Severe Weather
Awareness Week, National Preparedness Month and Winter Hazard Awareness Week to
education residents on actions they can take to lessen the risk to disaster.
The Fire Department does open houses during fire prevention week and shares information
during National Night Out events.
The Fire Department and Police Department also provide educational programs to local schools
and businesses upon request as well.
ISD 742 Schools actively engage in preparedness through their Emergency Management
Advisory Committee as well as the development of plans, training programs and exercises at
each of their locations.
4. What funding or other resources are available to help accomplish mitigation in your
community? The City of St. Cloud has applied for a FEMA Pre -Disaster Mitigation (PDM) grant
to work on erosion/landslide issues along the Mississippi River. We have also applied for FEMA
Hazard Mitigation Grant Program (HMGP) grants for other projects identified in the Stearns
County Hazard Mitigation Plan. Other grant funding, as well as the potential for capital
improvement planning may be possible to address some strategies for mitigation work within
the City of St. Cloud.
5. What program gaps or deficiencies do you feel exist that are a barrier to accomplishing
mitigation in your community? None identified at this time.
Part C: Contributors & Time
Erin Tufte — Emergency Manager, i hour
CITY OF ZIMMERMAN
Part A: Past Events & Vulnerability Assessment
1. In the last 5 years, has your community experienced any severe weather or disaster events
that posed risk to life safety, caused property damage, or incurred costs for recovery? On
March 6, 2017 a tornado damaged many homes and properties in the area of 245th Ave and
3.68th St. in the city. The tornado also did significant damage to the Sand Dunes State Forest
Campground.
In 2015 a transformer at a power distribution facility failed resulting in a power outage effecting
the City and schools.
On May 5, 2o3.8, a fire destroyed the 4H Club bunkhouse.
Page I K - 1.8
Sherburne County Multi -Hazard Mitigation Plan, 2020
2. In the last 5 years, has your community taken any particular actions to reduce the
vulnerability of your community against future severe weather or disaster events? In the
past 5 years the city of Zimmerman has added on -site generators to two of our busier sanitary
lift stations. We also replaced our aging generator at our Wastewater Treatment plant with a
brand-new generator. In July, 2oi9 a new generator was also installed to replace the old one at
the Fire Hall. The backup power forthese facilities will help to ensure they remain functional
during a power outage.
In the past 5 years, has anything, especially related to zoning or development, changed
that you feel has increased your community's vulnerability to future severe weather or
disaster events? We have had a lot development in the past 5 years but feel we have
adequately planned for the growth.
4. What concerns do you have / what mitigation actions do you think would help your
community to reduce or eliminate risk against future severe weather or disaster events? We
plan on continuing to add generators on to our water and wastewater systems. We also plan on
putting up a security fence around our well/ water plant.
Currently, there are no evacuation procedures for campers at the Sand Dunes State
Campground or structure to take emergency shelter in in the event of a natural disaster. We
would like to work with the Minnesota Department of Natural Resources to make a plan and
erect a storm shelter or tornado safe room for campers at the Sand Dunes State Forest
campground.
Part B: Local Mitigation Capabilities Assessment
1. What plans, authorities, or policies are in place to help accomplish mitigation in your
community? The City has emergency plans and policies in place to ensure we are prepared.
The City works with our one mobile home park (Zimmerman Terrace Mobile Home Park) to
plan for the evacuation and sheltering of the residents of the park in times of severe weather
such as tornadoes, high winds, or floods.
We have a Comprehensive Plan that is designed to plan for the future physical growth of the
city and appropriate land uses.
2. What staff (organizational capacityl are in place to help accomplish mitigation in your
community? Our Fire Chief is our designated Emergency Manager. Our City Engineer and
Public Works Director are continually working together to help address road reconstruction,
and additional storm sewer collection points.
Our Public Works Director addresses road maintenance issues for flooding (culverts, repetitive
flooding).
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Sherburne County Multi -Hazard Mitigation Plan, 2020
What programs are in place to help accomplish mitigation in your community? Our Fire
Department works with the youth on educating them of potential dangers. Our schools also
practice routine fire drills.
The City participates in the County's emergency alert system (Code RED).
The City participates in the NWS's annual Severe Winter/Spring Weather Awareness Week by
posting severe weather awareness information out on our Fire Department Facebook page.
4. What funding or other resources are available to help accomplish mitigation in your
community? The City is aware of state and federal grants available to us, and we will continue
to apply for them when available, also we try to budget appropriately to accomplish our goals.
5. What program gaps or deficiencies do you feel exist that are a barrier to accomplishing
mitigation in your community? Security of our water plant is one of our deficiencies, but we
have already started to make the appropriate steps to secure our facilities.
Part C: Contributors & Time
Keith Koehler, Public Works Director, 2 hours.
Ryan Maloney, Fire Chief/City Emergency Manager, 2.5 hours
Page I K - 20
Sherburne County Multi -Hazard Mitigation Plan, 2020
Appendix L
Minnesota Department of Health Climate &
Health Report
Page I L - s
Sherburne County Multi -Hazard Mitigation Plan, 2020
�■i�\WI M Jf� RWA E■WE:rr.'W r.%it
Page I L - 2
Sherburne County Multi -Hazard Mitigation Plan, 2020
EXTREME WEATHER IS A FAMILIAR CONCERN PUTTING CLIMATE CHANGE INTO CONTEXT
FOR MINNESOTANS
whiff experience has helped Minnesotans adapt to
historical weather patterns. dimiate change trends are
pushing us to adapt even further to weather patterns and
extreme events that pose major threats to our health
homes, environment, and livelihood. Dyer 50 years of storm
data on record document that Minnesota has experienced
an Increase In the number and strength of weather -related
natural disasters, particularly those related to nsirig
temperatures and heavy downpours. These events cost
our state millions in property loss, damaged infrastructure
disrupted business medical care and support services, and
put residents and responders at rrk. Understanding how
our weather is changing now and into the future will help
planners and decision -makers in emergency management
and supporting fields extend our progress in climate
adaptation and lead to more resilient communfies,
CLIMATE PROJECTiON DATA AS A TOOL
Climate projections can help us prepare for the future,
These data result from highly sophistscated global climate
models and provide a general Idea of trends in temperature
and precipitation many decades into the future at ever-
inrreasing time and spabal scales. Like every dataset. there
are limiFatiotts to our understanding and applicatton of
the information to real -life decision -making. Yet despite
4mitations, climate protection data offer a crucial glimpse
into our potential futures, and allow us to start considering
the best way to allocate our preparedness dollars and
management resources to reduce the severe impacts of
extreme weather.
Ir
Goftrchrikr.-V v...'e' fCexek, 20,18)
REGION 46/ 2
Sometimes, climate change and extreme weather events
and the impact on our communities appear distant and
abstract. That is why the Minnesota Department of Health's
Minnesota Climate & Health Program teamed up worth
state and local emergency management and preparedness
professionals as well as state chmatoiogists to develop
a custom climate profile for each of the six, Homeland
Security and Emergency Management{ HSEM) regions
across the state. Each regional profile includes a description
of climate change trends along with a summary of climate
projection data to illustrate these trends. Regional climate
data are presented alongside population projection data.
as it's important to consider both cur climate future and
population future as we plan to minimize risk and build
resilience against climate impacts.
Add in on ally. each regional profile provides a local case
study, a "focusing event' to illustrate the links between
extreme weather and natural drasters and what climate
projection data can (and cannot) signify for similar events
in the future. Each rase study features a recent nararaI
disaster that impacted the HSEM region and provides
a comparison between temperature and precipitation
measures related to that event alongside historical baseline
trends and future projection estimates. Taken weather the
sir HSEM regional profiles provide an Extensive overview
ofclimate change trends for Minnesota and describe
the potential impact of these trends for emergency
management and preparedness professionals and their
partnem
FOR MORE INFORMATION
A long form report. includ-ng all six profiles, individual
county data. and a more comprehensive description of
climate change trends and sLippomrig research will be
available at
Minnesota Climate & Health Planning tools & Wta
(www heahh.state, mro. iaidrvslcimvtechrangeldato.hrrnQ
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Sherburne County Multi -Hazard Mitigation Plan, 2020
REGION 6: Metro
COUNTIES
• Anoka
• Isanti
• Garver
• Ramsey
• Chrsago
• Scott
• Dakota
• Sherburne
• Hennepin
• Washington
HSEM REGIONAL PROGRAM COORDINATOR
aryPeterson
163-441-2896
�atY�,{?PterSaflf&14tatP.rnn a.
OUR KNOWLEDG E OF CLIMATE CHANGE IS
EXPANDING RAPIDLY
Climate recuw,. that across the Midwest and here
in Minnesota we are experiencing an increase in warmer,
wetter conditiorys as well as an inaease in extreme weather
events and related natural disasters. Experts expect these
condition to continue well into the future, By mid-century.
Minnesotans can expect much warmer winters. more
severe summer heat waves. a higher frequency of very
heavy risen events. and a higher frequency of late grow Ing
season drought condit ons.
Marry communities in Minnesota rely on economies
rooted to agriculture and outdoor recreation, such as
wintertime tourism, inciudrng snow mobtling, ice fishing,
and skiing. Future climate conditions may stress agruaulturat
econonnies by delaying planting and fieldwork, increasing
disease and pest pressure, and reducing crop yields due to
cycles of flooding and dry spelh. Rapidly warming winter
temperatures will turn snowfall into rain and reduce
the depth and timing of Iake ice ooyer, affecting winter
recreation.
Extreme ra+nfali events will increase food risk, paittcularfy
in ftoodplain areas, disrupting transportation and utility
senrfce, and damaging property and infrastructure. In
addrtion, surface runoff may lead to sail erosion, lake
pollu"n, and reduced drinking water quality. Nutrient
runoff in particular, along with warner temperatures, are
likely to contnWte to a larger occurrence of harmful algal
blooms on waters, many valued for recreation_ Changing
6mate conditions are likely to strain the viability of
native species, including popular recreational fish: invite
encroachment by invasive species, and increase the
geographic range and types of ticks arxf mosquitoes.
Some of these trends are evident in the current climate
prulectlon data that are available However, because these
data are often averaged or summarized for large areas
over large time periods, they can mask the local peaks in
temperature and precipitation that can trigger disasters.
Until more finely -scaled climate projection data becorne
available to Minnesota planners and decision -makers. the
current data still remain useful for exploring the future
ahead and establishing a baseline understanding of what
our weather challenges may be moving forward.
31 REGION r,
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Sherburne County Multi -Hazard Mitigation Plan, 2020
Use the foflowmng inforriv non on remperoture, preap+to non, and vulneeoble
popufabons to help plan for future weorher•refared incidents,
TEMPERATURE
Their has been an IrKrease In whiter and summer temperatures. Our average winter loves are rising rapidN. and our
coldest days of winter are ncm- warmer than +ace nave ever re carded. In fart. Minnesota winters are warming nearly 13
bmirs faster than our summers- The continued rise in winter temperatures will result in less snow pact; whtcti will increase
chances for grassland/Wildfires as well as drought. The warmer winter temperatures will also have major consequences
for our ecosys term, including nabve and invasive specieswhose growth. migration, and reproduclicin are tied to climate
cues. The increase in Lyme disease across Minnesota a also likely influenced in part by the loss of our historical winters,
due to a longer Ife-cycle period for ticks. Freeze -thaw cyder are hkely to 1wease a6 well. damaging roads. power hnes
and infrastructure. and causing hazardous travel conditions. By mid-century our average summer highs will also see
a substantial rise. coupled with an increase in more severe. prolonged heat waves that can contribute to drought and
wildfires and pose a serious health threat. particularly to children and seniors. Here are temperature trends for HSEM
Region 6:
d >�
1981 2i710 2050 2t775 Cha a 1981-2010 2050-2U75 Ch e
811'F 88.7'F +7.7'F 7,6°F 17,27E 1 -9.6-F
PRECIPITATION
There has been an increase In "I awesge as vmIll as hemy precipitation everts, with longer perkrds of inItentenhl
dry spells. Our historo aI rainfall patterns have changed substantially, giving rise to larger r ,-jrc frequent heavy downpours.
Minnesota s nigh -density rain gauge network has captured a nearty four -fold increase in 'mega -fain" events just since
the year 2000, compared to the previous three decades. Extreme rainfall events increase the probability of disaster -level
flooding and new research suggests a recent increase m precipitation -triggered landslide achvRy in the metro region.
However. [here is also an increased probability that by "cl-century heavy downpours will be separated in time by longer
dry spells. particularly during the late growing season- Over the past century, the Midwest hasn't experienced a significant
change in drought duration. However the average, number of days without precipitation is pmlected to increase in the
future. leading Minnesota climate experts to state with moderate -to -high confidence that drought severity. coverage, and
duration are likely to increase in the state. Modeling future precipitation amounts and patterns is Tess straight -forward
compared to temperature. Some climate mode do a better lob than others representing rainfall for the Midwest. and
available data sources only provide average estimates an a monthly scale masking the spikes in extremes that trigger flood
and drought disasters. Trend data provided here for HSEM Region 6 are summarized for early surnmet when historically
Minnesota receives most of pis ram'all and iror eadv fall when rainfall scarcity may threaten ,or ha,.,est: and Kcal
agricultural economies:
Precipitation for HSIM Region 6 Precipitation for HSEM Region 6
.'
1981.7010 050-Z,075 Chan e 1`81 20W r050.2075 Chan e
4,4" 5-0- +t).6" 2 9" 2 9- 0.0'"
REGION 6I4
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Sherburne County Multi -Hazard Mitigation Plan, 2020
VULNERABLE POPULATIONS
There has been an increase In the older adult populartlon. Extreme weather events cause a range of health impacts
and disruptions that vary across population group; The vulnerabkty of a group is a function of its sensitivity to a harard,
exposure to nsks, and capacity for responding or coping with the impacts. Children and older adults are often identified as
groups vulnerable to climate change: threats, including extreme weather and natural disasters. For example, physiologically
these groups have a louver capacity to tolerate extreme heat and are often dependent on others for transportation to
cooling centers These groups are atso often critically dependent on others during a disaster, such as needing help to
evacuate during a flood or wildfire, or to find alternative housing if displaced. Planning for the specific needs of vulnerable
populations strengthens, local efforts to reduce the impact of extreme weather -related events. Population trend data
provided here for HSEM Reg eon 6 are intended to highlight the changes in two key demographic groups for the region,
but planners and managers should also consider future changes in other populations of concern. such as those with low
incomes, immigrant grc-.)ps ind-eer,*-is peoules pe^ions with disabilities, or vulnerable occupational grr aps (such as
outdoor workers):
•
2015 050 1 clian a 015 20!io Chan
1.274,638 1.616.464 +27�5 585,000 1 1.039.608 +78':e
The f0ow-ng case study is intended to illustrate the links between climate and weather and natural disasters, Acting as
a "fomsmg event," the case study demonstrates how a previous weather -related event (i.e., drought and extreme heat]
impacted Lmportant economic drivers. environmental resources, and population health. Then. the Climate Projection Data
section compares weather data from the case study with baseline and projected weather data to show the possibilities of
future disaster events. This case study highlights the relevancy of climate projection data for understanding future climate
and weather risks m Mmritsota.
EVENT: EXTREME HEAT DATE: JULY 2011
The Extreme Heat Wave of 2011 impacted all Region 6 coumies in addition to the rest of Minnesota and much of
the Midwest. putting nearly 141 million Americans under some level of heat advisory or warning. By far, the most
intense heat and humidity records were recorded In Minnesota, where Monneapolrs experienced Its most humid day
an record and tied the all-time record for a heat index (1 i9 degrees)_ The magnitude and persistence of high dew
point temperaturex and heat index values led rreteoraiagista to label the event a "humidity stofm". In the metro
area temperatures soared both day and night — two days. hit a maximum 100 degrees and 12 more reached 90
degrees, whale a record of 80 degrees was set for nighttime laws. Due to the urban heat island effect, temperatures
in the metre, region are often higher compared to less urban surrounding areas, usually an average of 2 degrees
higher. However, during heat waves this temperature difference can spike to as much as 9 degrees. ultraviolet (UV)
monitoring showed dangerously elevated levels of radiation during the heat wave. which rate lead tact acute and
chronic effects on the skin, eyes, and immune system, anduding skin cancer and cataracts. The average UV index for
July 2011 (9 71 was the highest for any July since 1994, The UV index for days during peak heat intensity were above
10, a level associated with a very high risk of serious health effects.
51.. , ,
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Sherburne County Multi -Hazard Mitigation Plan, 2020
It rs nearty impossible to capture all the various impacts from a natural disaster. These impacts broadly include costly
infra twcture damage disrupted utrflty service, prolonged work and school absences acute physical injury, and persistent
strains on mental neafth, on scales ranging from the community to the household to the individual.
The extensive casts associated with the 2011 Eritreme Heat Wave are difficult to capture in as ingle estimate in part due to
challenges with capturing representabve data. For example, extreme heat exposure can aggravate marry common medical
conditions, like heart and lung disease. deabetes, or mental illness. When patients seek medical assistance, heat exposure
is not often included in hospital records as a contributing cause. it m likely that there are many more heat -related illness
cases. and thus medical expenditures. than are actually captured by current health monitoring efforts. In addition, when
temperatures soar the reliance on ,air-conditioning also escalates and can lead to substannal strains tin the energy grid as
well as high utalny bills for customers- Some residents on restricted incomes may jeopardize their comfort, and well-being,
by not utilizing their air-conditioning even when a unit is present
Following are a few examples of the adverse impacts can HSEMt Region 6 communities from the 2011 Extreme Heat Wave_
PUBLIC SAFETY: Large numbers of residents
sought rmedreal attention for condtboris brought on or
aggravated by the heat. Nearly Si70 people in the metro
region were taken to the emergency department or
haspitalr:ed for specnccalty coded heat related illness,
and at least a few fatal mes were recorded.
INFRASTRUCTURE DAMAGE: The Minnesota
Department of transportation (MnDOT) reposed
numerous porn% of road buckling. inciuding areas of
1.94, which can be extremely dangerous for motocets-
REGION 6116
STRAIN ON ESSENTIAL SERVICES: uhlrbes were
strained to meet cooling deman& Although not located
in Region 6, one utility in ri&nheastern Minnesota
reported using more power during a single day of the
heat wave than on arty other day in the company s
records. Besides the upsurge in actrvity for paramedics
and emergency services personnel police officers were
asked to take on wellness checks for people in their
patrol areas who might be suscephbke to problerns
with the heat. Joke elderly and people experienarig
homelessness.
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Sherburne County Multi -Hazard Mitigation Plan, 2020
Minneapolis experienced its most humid day
on record and tied the all-time record for a
hear index (I19 *F).
Top.- Pavement WOW on 1-94 N creanng a ibgrom heading out of Minneopoirs (Brian Peterson. 2011)
Bottom ttft. Hors sunrise (WtxM,, 2018)
r. @roan poorer from the Minnesota TWOns coo)ffq dawn daring a riot gaffe (Cordes Rex Arbogast. 2018)
Page I L - 8
Sherburne County Multi -Hazard Mitigation Plan, 2020
Following are visual representations of climate proteman data for Region 6, Data for all counties included in Region 6
were averaged to derive regional estimates. {Data for ,ndividual counties are available in the long -form report.) The graphs
below compare future temperature and precipitation protection data (in yellow) wittti a historical climate baseline (In
blue) and climate measures from the regional case study event (in green). Although peak heat intensity occurred in July,
measures for June and August are also included.
0 Historical::981- 2010
LEGEND 0 Case Study: 2011 extreme heat event
Projecte4.2054-2074
Maximum Temperature
ire -id zornparisLn to .1bI I e�,rerne heat event data
95
90
135
8o
15
70
m
June July August
Historical
79,4
83.3
80S
Case Study
76.5
859
M15
Projected
85.7
91.4
84.1
Page I L - 9
Sherburne County Multi -Hazard Mitigation Plan, 2020
Minimum Temperature
Trend companson to 2011 extreme heat event data
15
10
65
60
55
r1
June July August
hl:AQF'ca6
`'�6.6
Case Study
56.5
66.0
60.2
Projected
62.5
68-3
66.3
Total Precipitation
Trend comparison to 2011 extreme heat event data
..a
TO
6.5
6.0
5.5
0
u
5.0 —
C
4.5
4.0
I c
3.0
Om
Histoncal 4.7 4.5
Case Study 4.0 7 i 3.8
Prrslected 5.6 44 4.4
Page I L - 3.o
9/
Sherburne County Multi -Hazard Mitigation Plan, 2020
CLIMATE DATA EXPERTS expect that future cbmnate
conditions across the Midwest will continue toctiange and
affect our environmert. economy, and public health, Such
conditions are projected to lead to a h ghe r frequ envy of
late growing season drought condrhons. elevated winter
temperatures with reduced snowpack prolonged high beat
days. and extended periods of low rainfall. For the 2011
Extreme Heat Wave, maximum and minimum temperatures
for July. when the heat wave peaked, were well above
baseline valves Mid- century climate estimates indicate that
average summer maximum and minimum temperatures
for Region 6 counnes will be apprraiimately 6-57 warmer
than historical trends. As average temperatures increase.
the likelihood of more frequent extremes also increases.
Currently, the primary response to protecting ourselves
from the stress of high outdoor neat is to remain in air
conditioned indoor spaces.
However. this reliance comes at a cost, particularly
to Region 6 commun in es where much of the state's
population 6 concentrated. 0ver98% of housing units
in the Twin lines metro region have some form of
air-conditioning. The addibon of schools, businesses,
entertainment venues, and other cooled buildings puts a
hefty strain on the region's energy gird during prolonged
periods of extreme neat, and this strain is projected to
increase more in Region 6 counties than any other region
of the state. The consequences go beyond rising utility
crusts to residents. which may lead some to nO getting a
heat -illness to avoid unmanageable bills. Rising electricity
usage may also lead to power drsnupt►on or even prolonged
outages, which can have further neganve health effects.
Another concern is when mulnp4e disaster events happen
together. In addition to the .1011 Extreme Neat Wave,
a large cluster of July thunderstorms swept through
the metre, region bringing 1•2 inch diameter hail, wind
gusts over 80 mpb, and a number of tornado sightings,
Damage was widespread, including electricity outages and
downed power lines. The most intense rain was focused
on the metro area and dropped 1 inch of rain in just
over 20 minutes. Region 6 counhes received an average
July rainfall far above historical norms posing a potential
flood risk. When extreme events cur -occur the demands
can overwhelm utilities. derail the power grid. and tax
emergency management and response resources beyond
capacity.
REGION 6/10
ttClimate data is a critical
tool in planning for resilient
communities into the future, '91
CLIMATE DATA 15 A CRITICAL TOOL in planning
for resilient communlnes into the future. Assessing threats
from climate change and planning effective mitigation
and response strategies is a key element for emergency
managers and other planners to reduce future risk. It is
crucial to understand the potential impacts of climate
change and the associated priorities and vulnerabilities
of communities, including population, the environment.
critical infrastructure, and more, However, vulnerability
is a nuanced concept and roast effective as an indicator
of risk when planners seek to understand and address
vulnerability as cbse to the individual level as pmsibie and
in association with a specific hazard.
For example. in HSEM Region 6. population projections
show a sizable increase in children alongside a substantial
increase in seniors. Children and seniors have a reduced
physicai capacity to adjust to and cope with high heat.
and are often partially dependent on others to ensure
their personal safety and well-being, characteristics that
contribute to increased vulnerability. In addition, children
often spend more bme engaged in phystcaI activnv
outdoors, while seniors on hmited incomes may struggle to
pay for air-conditioning. Considering the impacts of climate
change to vul'nerabie populaborts is just one example of
how to prioritize mitigation and response planning.
CLIMATE PROJECTION DATA. continues to improve
and should be considered as a priority to advance.
Minnesota would benefit from a statewide high -quality
cliimate protection dataset that is derived using the
climate and environment features unique to our state.
similar to datasets developed for other states. Meanwhile,
data from national resources, like the U.S. Geological
Survey (USGS) and National Oceanic and Atmospheric
Adminrstrahon (NOAA). can still prov.dea powerful input
to regional scenario -planning efforts by allowing planners,
managers, and analysts a rnearis of 'unpacking" general
chmate change predictions for the Midwest by looking at
potential monthly fluctuations in coarse precipitation and
temperature measures for Minnesota and its counbes.
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Sherburne County Multi -Hazard Mitigation Plan, 2020
Prepare today for tomorraw's climate hazards. Emergency manager, planners, elected officials. and the public play a
cmcal rule in creating safe and healthy communities. especially in the face of extreme weather events. There are steps
you can take to minimize local risk and build more resilient comtnunitar,:
BRING EVERYONE TO THE TABLE: Build an inciusrwe yet nimbie team to collectively identify
climate hazards and potential impacts. Be sure to include members of the community: local department
professionals responsible for built, natural, and health resources; planning commissioners: faith -based
and cultural organrzanorts; research centers; and commercial orprivanons. Including diverse perspectives
throughout your process will help support more equitable planning efforts that best leverage cross -
functional resources.
INCORPORATE CLIMATE INTO PLANNING: incorporate climate projection data into planning
efforts, sucn as exercise scenarios and long-rarsge planning, to comprehensively identify tutu re climate
hazards and potenhal cascading effect, Explore how these interact with non -climate hazards in the
community, such as aging infrastructure, to understand potential exposure to multiple threats and
prioritize actions that build the corn munity's capacity to respond.
CHAMPION CLIMATE & HEALTH: Be a champion for climate and health data. Seek opportunities
to learn about these data anu incorporate it in yourwork on an iterative basis. Support its appitcanon
in professional networks and articulate the need to fund dynamically downscalled climate projection
datasets for Minnesota. Climate data is a critical mufti -discipline tool in proactively planning for resilient
communities.
TOOLS & DATA
• Climate jta fblance. National Climatic. Data Center National {keanic and Atmospheric Admiriistrabon
Source for all hittonmi and much of the rase studv data presented in then prohie.
www. ncdwtraaat rgavJcog/
■ M_LnnC1aQhMjW andI#ear�rIrfg_ IgtFl, Minnesota Department of Health
Praf9les historic dlmate trends, future projections, and likely climate change impacts on the health of Minnesotans.
hrtp'%,JtiVww. heulrh. srote_mn.+�,c/drys/clrr�afeNxi+nge,/dixslrrrnproj+1e201S. pd/
■ Minnesota Climate Change Vulnerabilitg Ams�ment-IPDFl, Minnesota Department of Health
Assesses five Ornate hazards and the populations that are most vulnerable to the hazards in Minnesota.
hrtpVlwww heath.store.mrLusJdrvs/drnwrechanrgeldocxlmndirmulneeportPdf
■ �1lnttas4ta fio .t txi I' tf nJn ili_tA Minnesota State Demographic Center
Source for all population protection data presented in this profile.
hripsVlinn. gvv1bd1 wrVdemci;lmPhV1dprci•bl+-W ic1popu'lodvr+-dotolour-prejrrtronsl
• National Climate Change 4iewer, United States Geological Survey
Source for all climate projection data presented in this profile.
www2 usgis.govIchmate_kanduseldtv.. rdlnccvlv+ewerasp
/I/
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Sherburne County Multi -Hazard Mitigation Plan, 2020
KNOWLEDGE & CAPACITY
• Ohmate C:harle and Minnesota Wnnesota Department of Natural Resources
Source of information on climate change trends and imparts for Minnesota, with an emphasis an natural resources.
www,dnr:store.mn.Wdimatel'ekr?vtr_ehorrge_enfol mdex.h►ml
• Extreme Heat- Center for Disease C'antrol and Prevenvon
General information on health protective actions for the general public and vulnerable populations.
www.cdr.govIdoostrWextxemehroViridex. htrni
• Extreme Heat Events, Minnesota Department of Health
Information of health protective actions for Minnesotans, including an Extreme Neat Toolkit.
www. hsafth. stars. mn. usldtvsldiff wtvchmrgr%rxtivnvheot. htm!
• Five Steps Toward Enhancing Climate Resilience. Emily Wasley, DomesticPreparedness_com
Practical action steps to help emergency managers build a path to enhance their climate resilience.
https-lf www. domrstrcpre paredness.rorWresiNe rxelfiver• steps- hxword-en hancing-chmotr-rewhenoel
• U,S, C1imair ft w-il United States Global Change Research Program
Informahon and tools to help communities adapt to climate change. featuring real -we rid rase studies.
hr!,os 1/t0adrect1rmurs.g0v/
REFERENCES
• Auffhammer et al.. 2017. Climate Changers RojiMted to have Severe ImiMcts on the Ffgq!K_ncy and Intensity of
Peak F cgittiuuty Demand Across Uw jWjU Stair f .DUj
httpYlwww pnas.orglcontentlpnaslI.l4l$It 866. full.pdf
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Minnesota Department of Health
Climate & Health Program
htCh,tlirnatechange h�stcte mn rr5
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www.health.state_.rnn.ussdivslclimatechangel
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