5.4. SR 04-12-2010Item # 5.4.
MEMORANDUM
TO: Mayor and City Council
FROM: John Anderson, P.E.
DATE: April 12, 2010
SUBJECT: Main Street Pavement Rehabilitation
Background
The City Council discussed the need for pavement rehabilitation on Main Street from Lowell Avenue
to the Bridge in 2009. This item was included in the Capital Improvement Plan for 2010. The City
Council has expressed an interest in assessing a portion of the cost of this project to the benefiting
properties. Staff feels that it is worth considering expanding the scope to include the section of Main
Street from the Bridge to Orono Road.
Proposed Improvement
The proposed pavement rehabilitation process proposed for this roadway is Full Depth Reclamation.
This is the same process as was done in 2009 in the Morton /Norfolk neighborhood. It involves
grinding the existing pavement and blending it with the gravel below, shaping and placing two, two-
inch layers of bituminous pavement. Plans for this work have been prepared as part of the stimulus
funding application submitted in 2009. The standard fox pedestrian ramps has changed since the
reconstruction in 1988 and possible upgrades to these installations may be required to be included in
this project.
Assessments
The areas that this section of Main Street is in have been assessed for various past projects that include
the following, 1988 Main Street Reconstruction, 2003 Reconstruction, 2005 Reconstruction, 2008
Overlay, 2009 Full Depth Reclamation. It has been assumed that properties previously assessed fox all
projects, except the 1988 Main Street Reconstruction, will not be assessed for the 2010 project. Staff is
suggesting that the assessment rate for 2010 be set based on bituminous overlay projects in the past.
Schedule
As the project is proposed to be assessed, the schedule fox the project needs to accommodate the
public hearings and notices required by MN Chapter 429. A project schedule has been laid out that
begins with the Ciry Council considering ordering a Feasibility Study at the Apri119, 2010 Ciry Council
meeting. T'he construction is targeted to begin after the Sherburne County Fair Parade in mid July on
Main Street and conclude before school opens in September.
I have prepared a presentation on these issues and will be in attendance at the Apri112, 2010 Ciry
Council Workshop to present this material and answer questions.
S:\Public Bodies\Council\Streets\Main Street Rehabilitation 04 12 l0.doc
2010 Main Street
City of
El:
Pavement
Rehabilitation
April 12, 2010
John Anderson, Project Engineer
2010 PAVEMENT MANAGMENT Main Street (Lowell to Orono)
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Project Length /Area
• Lowell Avenue to north end of Bridge
- 4,470 feet / 195,000 SF (75%)
• South end of bridge to Orono Parkway
-1530 feet / 63,400 SF (25%)
• Lowell Avenue to Orono Parkway
- 6,000 feet / 258,400 SF (100%)
Pedestrian Ramps
• MnDot has revised requirements since 1988
• MnDot projects require updates be implemented
• Changes
- Truncated dome material (metal vs concrete)
- Slope
• Cost per installation - $2,000 - $4,000
- Curb modifications
- Remove /replace ramp surface to include domes
• Develop city policy to apply to future projects
Project Costs
Construction
Pedestrian Ramps
Overhead
Contingency
Lowell to Orono
$533,000
$40,000
$75,000
$26,000
Lowell to Bridge
$400,000
$38,000
$56,000
$20,000
Total $674,000 $514,000
Previously Assessed Parcels
• 1988 Main Street Reconstruction
• 2003 Reconstruction
• 2005 Reconstruction
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• 2009 Full Depth Reclamation
2010 PAVEMENT MANAGMENT
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Potential Assessable Parcels
• Eliminate parcels assessed in 2003,
2005,2008, and 2009
• Include parcels that front on Main Street
• Include parcels accessed from Main Street
Assessable unit determination
• Residential single property - 1 unit
• Residential multi unit - .25 units
• Commercial property - 2 units
• Agricultural - 1 unit per PIN
2010 PAVEMENT MANAGMENT
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Previous Assessment Rates
2004 Overlay - $1,975
2006 Overlay - $2,150
2008 Overlay - $1,400
2009 FDR - $3,750
Potential Assessment
Units
70 - 90 units total
Rate
$1, 500 - $2, 000
Range
70 x $1, 500 = $105, 000
90 x $2, 000 = $180, 000
Suggested
75 x $1,750 = $131,250
Estimated Project Funding
Assessments
City Contribution
Total
Lowell Ave to Orono Rd.
$ 131,250
$ 542,750
$ 674,000
Other Financing items
• Term = 5 yrs
• Interest rate = 5 yr. 3.5%
Proposed Schedule
•
•
•
•
•
Order Feasibility /Authorize bidding
Advertise for bids
Open Bids
Public Hearing /Assessment Hearing
Construction
4/19/10
5/01 /10
5/26/10
6/21/10
July -August