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6.1.A. SR 12-18-2006 City of Elk River REQUEST FOR COUNCIL ACTION Agenda Section Meeting Date En . eerin December 18, 2006 Item Description Irvin Avenue Area Street Rehabilitation Pro' ect Item Number Introduction The City Council ordered the Feasibility Study for the Irving Avenue Area Street Rehabilitation Project in October of 2006. That feasibility study has now been completed. Discussion The feasibility study analyzes the reconstruction of Irving Avenue from 4th Street to School Street, 5th, 6th, ? and 8th Streets between Irving and Jackson Avenues, and the reconstruction of 5th, 5th 1;2, 6th and? Streets, Holt and Gates Avenues ~ east of Irving Avenue. It also analyzes the overlayment of Holt and Gates Avenues, and 8 Street south of School Street and the paving of the alleys between 8th and 5th Streets. An informational meeting was held with the property owners on Thursday, December 7, 2006. A copy of the presentation, sign-up sheet, and minutes from that meeting are contained in the Appendix of the Feasibility Study. As you may expect, the biggest area of contention was whether or not sidewalks are necessary on all streets and where they would be placed relative to the CUrb and gutter. There was some discussion of the proposed assessment, but given the history of other street reconstruction projects, I believe property owners were understanding what the City Council is ttying to. accomplish. The one area of the feasibility study that is hard to justify is the paving of the alley sections. This is due to the fact that it is relatively expensive versus the ability to assess the property owners. The proposed alley section is similar to the street section, because it needs to support loaded garbage trucks in the springtime of the year. There are a limited number of properties adjacent to the alleys and some of those do not actually utilize the alley for access to their property. There are several lots on the alleys that have driveways onto Irving Avenue. It may be better to regrade and regravel the alleys, ttying to eliminate drainage concerns but not pave them. The next step in the process with this project would be to accept the feasibility study and order the public hearing. The attached resolution orders the public hearing to be held on February 5, 2007. Financial Impact As with previous street reconstruction projects, the City will have a significant contribution to the cost of street and storm sewer. It is estimated in the Irving Avenue area, given an assessment rate of $6,650 per residential property and $1,950 for the overlay area per lot, that the City contribution will be approximately 70 percent of the total construction cost. The Elk River Municipal Utilities have asked for some watermain replacement and the replacement of the old style hydrants in the area. They have agree to pay 100 percent of their proposed improvements. Attachments · Feasibility Study · Resolution 06-_, Receiving the Feasibility Study and Ordering the Public Hearing Action Requested Adoption of the attached resolution. Council Action Motion by _ Second by _ Vote Follow Up S:\EngineerImprovProj\2007 Improvement Projects\Irving Ave Area \12 18 06 CC memo.doc RESOLUTION 06- A RESOLUTION FOR THE CITY OF ELK RIVER A RESOLUTION RECEIVING THE FEASIBILITY REPORT AND ORDERING A PUBLIC HEARING ON THE IMPROVEMENT IN THE MATTER OF THE IRVING AVENUE AREA STREET REHABILITATION IMPROVEMENT OF 2007 WHEREAS the Feasibility Report ordered by the Council in Resolution 06-116 has been prepared with reference to the Irving Avenue Area Street Rehabilitation improvement and was received by the City on December 18, 2006; and WHEREAS the Feasibility Report recommends that the .proposed improvement is feasible; NOW THEREFORE, BE IT RESOLVED by the City Council of the City of Elk River, Minnesota: 1. The City Council will consider the Irving Avenue Area Street Rehabilitation improvements as described in the Feasibility Report and the assessment of the property abutting this proposed improvement for all or a portion of the cost of the improvement pursuant to Minnesota Statutes, Section 429, at an estimated total cost for the improvement of $3,355,000. 2. A public hearing shall be held before the City Council on the proposed improvement on the 5th day of February, 2007, at 6:30 o'clock p.m. at the Elk River City Hall Council Chambers. The City Clerk shall provide two published notices (one week apart) in the official newspaper with at least three days between the last publication date and the hearing, and mailed notice ten days to the hearing as required by law. Passed and adopted this 18th day of December, 2006. Stephanie, A. Klinzing, Mayor ATTEST: Joan M. Schmidt, City Clerk S:\EngineerImprovProj\2007 Improvement Projects \Irving Ave Area \Resolution Receive Feasibility Order PHdoc I I I I I I I I I I I I I I I I I I I FEASIBILITY STUDY FOR 2007 IRVING AVENUE AREA STREET REHABILITATION PROJECT CITY OF ELK RIVER DECEMBER 2006 88M CONSULTING ENGINEERS AND SURVEYORS, PLC I I I I I I I I I I I I I I I I I I I FEASmILITY STUDY FOR 2007 ffiVING AVENUE AREA STREET REHABILITATION PROJECT CITY OF ELK RIVER DECEMBER 2006 CERTIFICATION PAGE I hereby certify that this plan, specification, or report was prepared by me or under my direct supervision and I am a duly licensed Professional Engineer under the laws of the State of Minnesota. ~ /!;1J~ ~C/ ~ jA) Terry J. Maurer ~.' Lie. No. 15316 Iz!Z/Ob . Date I'~/I~I 0(; Date Prep d by: John Anderson, P.E. Lie. No. 25889 I I I I. II. I III. IV. I V. VI. I VII. VIII. I IX. X. XI. I XII. XIII. I XIV. XV. I XVI. XVII. XVIII. I XIX. xx. I XXI. XXII. I XXIII. I I I I I I TABLE OF CONTENTS INTRODUCTION .............................................. ..................................................................... ..... I PROJECT SCOPE..... ..... ..... ................................... .................. .................................................... 1 NECESSITY AND COST-EFFECTIVENESS ............................................................................2 EXISTING CONDITIONS.......................... .......... ............................................................ ........... 2 PROPOSED IMPROVEMENTS............ ........... .......... .................................... ............................. 5 CITY IMUNICIP AL UTILITIES COORDINATION ................................................................... 7 RIGHT -OF-WAY, EASEMENTS, AND PERMITS ...................................................................7 INFORMATIONAL lIEARING......... ................................................................................. ......... 7 ESTIMATED PROJECT COST ...................................................................................................7 FINANCING AND ASSESSMENTS ..........................................................................................8 PROJECT SClIEDULE... ............................................ ................................. ................................ 8 CONCLUSION.............................................................................................. ...,........... ................ 9 EXHIBIT I - PROJECT AREA ............................................................................................._ X-I EXHIBIT 2 - EXISTING SANITARY SEWER...................................................................... X-2 EXIIIBIT 3 - EXISTING W ATERMAIN................................................................................ X-3 EXHIBIT 4 - PROPOSED W ATERMAIN.............................................................................. X-4 EXHIBIT 5 - EXISTING STORM SYSTEM .......................................................................... X-S EXHIBIT 6 - PROPOSED STORM SYSTEM ........................................................................ X-6 EXHIBIT 7 - PROPOSED STREET SECTION ...................................................................... X-7 EXHIBIT 8 - PROPOSED STREET AND SIDEWALK ........................................................ X-8 EXHIBIT 9 - PROPOSED ASSESSMENT AREAS ............................................................... X-9 APPENDIX A - GEOTECHNICAL REPORT ........................................................................ A-I APPENDIX B - INFORMATIONAL MEETING ................................................................... A-2 I I I I I I I I I I I I I I I I I I I I. INTRODUCTION On October 2, 2006 the City Council adopted Resolution 06-116 ordering the feasibility study for the 2007 Irving Avenue Area Street Rehabilitation Project. The area to be included in the project Includes Irving Avenue from 4th Street to School Street and all intersecting streets as shown in Exhibit 1. In addition, the project will include the paving of the alleys in the area and the milling and overlay of three streets south of School Street also shown in Exhibit 1. The 2007 Irving Avenue Area Street Rehabilitation Project can be broken down into three groups representing the type of improvement proposed. The first and largest portion of the project includes the reconstruction of streets, sidewalks, storm sewer, and watermain. The second part of the project includes a mill and overlay area where the streets have not deteriorated to a point that merits a complete reconstruction. The third and final part includes the paving of three alley sections. The streets included within the project are listed below: Irvin Avenue 5th Street 5th Street 5th Street 5th 1/2 Street Holt Avenue Gates Avenue 6th Street 6th Street 7th Street 7th Street Gates Avenue 8th Street 8th Street Holt Avenue Gates Avenue Aile Aile Aile II. PROJECT SCOPE 4th Street Jackson Avenue Irvin Avenue Holt Avenue Holt Avenue 5th Street 5th Street Jackson Avenue Irvin Avenue Jackson Avenue Irvin Avenue 6th Street Jackson Avenue Holt Avenue 8th Street 8th Street 5th Street 6th Street 7th Street School Street Irvin Avenue Holt Avenue Gates Avenue Gates Avenue 5th 1/2 Street 5th 1/2 Street Irvin Avenue Gates Avenue Irvin Avenue Gates Avenue 7th Street Irvin Avenue Gates Avenue School Street School Street 6th Street 7th Street 8th Street Reconstruction Reconstruction Reconstruction Reconstruction Reconstruction Reconstruction Reconstruction Reconstruction Reconstruction Reconstruction Reconstruction Reconstruction Reconstruction Mill & Overla Mill & Overla Mill & Overla Overla Overla Overla The purpose of this study is to analyze the necessity for improvement of the proposed streets and alleys included in the 2007 Irving Avenue Area Street Rehabilitation Project. In addition, the existing sanitary sewer, water, and storm sewer systems will be evaluated to determine the necessity for improvements. The study will discuss the existing conditions, proposed improvements, estimated construction costs, and overhead costs which include city administration, engineering, fiscal, and legal 1 I I I I I I I I I I I I I I I I I I I expenses. Past City practices with similar types of projects will be used as a guideline to discuss financing methods for the proposed improvements. III. NECESSITY AND COST-EFFECTIVENESS The improvements proposed in this study are necessary for a number of reasons. The reconstruction of the streets is a cost-effective means of continuing the City's proactive street efforts and ensuring an adequate means of transportation for local residents. In addition to rehabilitating street pavement, a total street reconstruction will allow for the correction of existing drainage problems through the construction of concrete curb and gutter, modifying street grades, and the installation of an improved storm sewer collection system. The watermain improvements are necessary due to under sized mains and deteriorating materials which result in inadequate water flow and potential leaks. The proposed improvements will provide a project large enough to ensure a competitive bidding environment and therefore will be cost-effective. Based on the information contained within this report, the proposed improvements are necessary, cost-effective, and feasible from an engineering standpoint. IV. EXISTING CONDITIONS Street Below is a table summarizing the existing street conditions including information regarding street length, width, curb & gutter, and sidewalk. Irving Avenue 350 36-42 Yes Both Sides (4th to 5th) Irving Avenue 1730 30-40 No One Side (5th to School) 5th Street 365 30-38 Partial No (Irving to Jackson) 5th Street 270 32 No No (Irving to Holt) 5th Street 590 28 No No (Holt to Gates) 5th 1/2 Street 590 28 No No (Holt to Gates) Holt Avenue 260 28 No No (5th to 5th 1/2) Gates Avenue 260 22 No No (5th to 5th 1/2) 6th Street 365 30 No No (Jackson to Irving) 2 I I I I I I I I I I I I I I I I I I I 6th Street 735 32-38 No No (Irving to Gates) 7th Street 365 28 No No (Jackson to Irving) 7th Street 735 32 No No (Irving to Gates) Gates Avenue 250 38 No No (6th to 7th) 8th Street 365 24 No No (Jackson to Irving) 8th Street 590 40 Yes No (Holt to Gates) Holt Avenue 400 40 Yes No (8th to School) Gates Avenue 400 40 Yes No (8th to School) Alley 435 12 No No (5th to 6th) Alley 370 12 No No (6th to 7th) Alley 375 12 No No (7th to 8th) In late fall of 2006, a geotechnical evaluation was performed in the area of the 2007 Irving Avenue Area Street Rehabilitation Project. Seventeen soil borings were taken, on each street block of the project. The soil borings indicated between 2-inches and 5- inches of existing bituminous and between 3-inches and 7 -inches of aggregate base material throughout the study area. The soils encountered below the existing pavement section included various grades of sand suitable for the proposed street section without the need for correction. The geotechnical report is provided in Appendix A. Vehicular Traffic In 2006 traffic counts were taken along Irving Avenue in two locations, one south of 5th Street and the second north or 5th Street. The location south of 5th Street determined that an average of 752 vehicles traveled through the area within a 24-hour period. The second location north of 5th Street determined that an ,average of 1199 vehicles passed that area within a 24-hour period. The traffic counts db not differentiate between vehicle types. Sanitary Sewer Eight-inch sanitary sewer is located on all the streets and alleys in the area with the exception of ih Street and Irving Avenue between 5th Street and 6th Street where there is none. The majority of the existing sanitary sewer is made of vitrified clay and PVC pipe, with a few segments constructed of reinforced concfete pipe. Portions of the sanitary sewer have been lined within the last five years. The! sewer on 6th Street, 7th Street, and Gates Avenue east of Irving Avenue was lined in 2002. Sewer lining on 5th Street and 5th Y2 Street between Holt Avenue and Gates Avenue was completed in 2005. 3 I I I I I I I I I I I I I I I I I I I In November 2006 the City contracted Visu-Sewer to televise all of the existing lines within the project area. The results are expected to show that the existing sewer will not require any improvements at this time. The existing sanitary sewer system is shown on Exhibit 2. Watermain Existing watermain is located throughout the project area with the exception of 6th, ih, and 8th Streets west of Irving Avenue where there is none. Pipe sizes range from 4-inch to 24-inch. There are 10-inch and 24-inch watermain lines running from Jackson Avenue along 5th Street continuing through to a connection on Gates Avenue. The remaining streets generall~ contain 6-inch pipe with the exception of Irving Avenue south of 51h Street and 61h and 7 Streets east of Irving Avenue which are 4-inch. The existing watermain is shown on Exhibit 3. Within the 6th Street, Gates Avenue, and ih Street loop there exists non-copper service lines to the existing residential properties. Storm Sewer The main storm sewer line runs east from Jackson Avenue along 6th Street, Irving Avenue, 5th Street and on to Gates Avenue consisting of 36-inch reinforced concrete pipe. Extending off this line there are catch basins at Jackson Avenue, 6th Street and Irving Avenue, 51h Street and Holt Avenue, and 51h Street at Gates Avenue. There is no storm sewer located on any of the other streets within the project area. Generally the overland drainage pattern of the streets west of Irving Avenue, including 51h, 6th, ih, and 8th Streets, flow from east to west and collect at catch basins located along the east side of Jackson Avenue. The stormwater s~stem along Jackson Avenue in this area flows into the 36-inch line which flows east at 61 Street. Sixth and Seventh Streets east of Irving Avenue, including the connecting portions of Gates Avenue, flow from east to west onto Irving Avenue collecting in a catch basin at 61h Street. This catch basin connects directly into the 36-inch main line sewer. Stormwater on Irving Avenue from School Street south to 61h Street also flows to this catch basin. Stormwater on Irving Avenue south of 51h Street flows into catch basins at the 41h Street intersection. The general stormwater flow pattern, within the 51h Street loop east of Irving Avenue, flow to the southeast and into two catch basins on the south end of Gates Avenue and 51h Street. These catch basins connect into the 36-inch line via a 12-inch reinforced concrete pipe. The existing storm sewer is shown as Exhibit 5. 4 I I I I I I I I I I I I I I I I I I I Existina Private Utilities Private utilities that have facilities in or near the project area will be notified of the project and requested to incorporate repairs and replacements with the project as needed at their cost. Private utilities include Elk River Municipal Utilities, Owest, Center Point Energy, Charter Communications, Northstar Access, and Sherburne Telephone Systems. V. PROPOSED IMPROVEMENTS The proposed improvements for the 2007 Irving Avenue Area Street Rehabilitation Project include street, storm sewer, and watermain construction. A detailed description of each proposed improvement is provided below. Street The proposed typical section for the majority of the streets to be completely reconstructed will be in accordance with the section adopted as part of the Pavement Rehabilitation Report with the exception of the aggregate base thickness. The proposed street sections consist of a 32-foot, 28-foot, and 24-foot wide streets with concrete curb and gutter. These sections generally mimic the existing street widths throughout the project. One exception to the section widths listed above is the street along the School south of 5th Street along Irving Avenue which varies from 36 to 42 feet in width. North of this area along Irving Avenue the proposed street width is 32 feet. The proposed pavement section for all the streets consists of 6 inches of Class 5 aggregate base, 2 inches of bituminous base course, and 1.5 inches of bituminous wear course. The proposed street section has been verified by a geotechnical investigation. The geotechnical evaluation performed by Independent Testing Technologies concluded that 6-iches of aggregate base will be necessary due to the existence of stable subgrade materials. The proposed street section is shown in Exhibit 7. The proposed rehabilitation of the alleys between 5th and 8th Streets will use a 12 foot wide street section utilizing the same pavement and aggregate base depths as the other portions of the reconstruction project. The alleys currently do not have curb and gutter and the proposed section also does not. The areas proposed to be milled and overlaid including Holt Avenue, 8th Street, and Gates Avenue will retain the existing street width of 40 feet. Milling operations will encompass a 6 foot swath adjacent to the curb and gutter edge. A 1.5-inch wear course will be applied over the entire road surface which will facilitate an increase crown height and better drainage. Prior to placing bituminous, existing paved areas in need of repair will be patched. Where necessary, curb and gutter and driveway apron repairs will also be made prior to the overlay material placement: In accordance with City Council direction to construct pedestrian facilities with new street construction, the proposed improvements also include a 6-foot wide sidewalk located on both sides of Irving Avenue and one side on each of the other streets within the reconstruction areas. Locations where sidewalk will not be feasible, including the alley and overlay areas, will be considered further during final design. With the proposed 5 I I I I I I I I I I I I I I I I I I I sidewalk improvements, connections to existing sidewalk locations will be made at Jackson Avenue, 4th Street, School Street, and Gates Avenue. Proposed street and sidewalk locations are shown in Exhibit 8. As with the previous street reconstruction projects, the 2007 Irving Area Street Rehabilitation Project proposes to have Elk River Municipal Utilities install decorative street in accordance with their lighting policy as part of the project. Sanitary Sewer The sanitary sewer within the project area will be televised to determine the extent that repairs or replacement would be necessary. A review of the Closed Circuit Televised Sewer Inspection Report is expected to show that the existing system will not need any repairs at this time. The report will also be discussed with Mr. Gary Leirmoe, Chief Operator. The existing sanitary sewer is shown in Exhibit 2. Watermain Watermain improvements were discussed with Mr. Bryan Adams, General Manager of Elk River Municipal Utilities (ERMU). The following items were a result of Jhe discussions and will be incorporated during design: . Some existing services within the 6th Street, Gates Avenue, and th Street loop may be lead or other non-copper material. ERMU policy states that non-copper services must be replaced with copper. These services will be identified and replaced as part of the improvements project. . The existing 4-inch watermain on 6th Street, Gates Avenue, and th Street will be replaced with a larger size main. The exact size will be determined during design through modeling. It is anticipated that at least an a-inch main will be required. · Existing old-style hydrants will be replaced and additional hydrants added. The location of new hydrants has been discussed with Fire Chief Bruce West and ERMU. The proposed watermain improvements are shown in Exhibit 4. Storm Sewer A review of the drainage patterns and pavement conditions reveal that some locations do not currently drain runoff effectively and has contributed to the deterioration of the pavements. Replacement and addition of curb and gutter, slight grade revisions, and storm sewer extensions are needed to facilitate drainage. Additional storm sewer is proposed along Irving Avenue, 5th, 6th, and th Streets east of Irving Avenue. Additional low points and catch basin locations will help alleviate flat grades and drainage problems. The proposed storm sewer improvements are shown on Exhibit 6. 6 I I I I I I I I I I I I I I I I I I I VI. CITY/MUNICIPAL UTILITIES COORDINATION In previous reconstruction projects, groundwork was laid for cooperation between the city and the municipal utilities. Similarly with this project it is agreed that the Municipal Utilities will fund all of the construction costs associated with their water improvements. In addition, the Municipal Utilities agreed to pay a percentage of construction cost for plan and specification preparation. This percentage is proposed to be 10 percent of the water improvement construction cost. Finally, the Municipal Utilities agreed to pay directly for services during construction, including construction staking, construction observation, contract administration and record drawing preparation. VII. RIGHT-OF-WAY, EASEMENTS, AND PERMITS Rmh~o~WavandEasemen~ No right-of-way will need to be acquired for the street improvements. Temporary construction easements may be required throughout the project area to accommodate driveway repair, water service replacement, and/or finished grading. Verbal permission will be secured from private property owners during the construstion process should work need to be completed on private property. Permits Several permits will be required prior to construction of the proposed improvements. Required permits include, but are not limited to, the following: · Minnesota Department of Health · Minnesota Pollution Control Agency (NPDES) Watermain Grading/Storm Water Quality VIII. INFORMATIONAL HEARING An informational hearing was held on December 7, 2006 with the affected property owners. The project was discussed and residents were encouraged to voice their concerns and to ask questions. Approximately 31 of the 163 properties notified for the informational meeting were in attendance. The major issue appeared to be whether or not to include sidewalks. A walk through will be scheduled with the residents prior to construction. Appendix B describes the informational hearing in more detail including minutes and the signup sheets. IX. ESTIMATED PROJECT COST The estimated construction costs and associated overhead costs for the proposed improvements are summarized in Table 1. Based on past experiences on similar projects in the City, the overhead costs have been estimated at 28% of the total construction cost. The overhead costs include city administration, engineering design, fiscal, and legal costs. 7 I I I I I I I I I I I I I I I I I I I Table 1 Project Cost Estimate Street & Storm Sewer Improvements Watermain Improvements Total Construction Cost $ 2,244,100 $ 278,400 $ 2,522,500 Administration, Engineering, Fiscal, & Legal (28%) Contingency (5%) Total Project Cost $ 706,300 $ 126,200 $ 3,355,000 X. FINANCING AND ASSESSMENTS The improvements discussed in this report are proposed to be financed through a number of different methods. Benefiting properties would be assessed on a per unit basis for street, curb and gutter, sidewalks, storm sewer, and street lighting. A residential lot that could not be further subdivided would be assessed as one unit. Lots that can be subdivided would be assessed as multiple units as appropriate. Churehes and other non-residential property would be assessed as multiple units determined by the lot area. The number of assessable units is approximately 126 for the reconstruction areas, 28 for the alley areas, and 30 for the mill and overlay area which is graphically shown in Exhibit 9. The proposed assessment rate is $6,650.00 per unit for areas where complete reconstruction is proposed, $500.00 for the alley areas, and $1,950.00 for the mill and overlay areas. The total assessment amount would then be $910,400. The Elk River Municipal Utilities would be responsible for funding all water improvements, including construction cost plus associated overhead. The water improvements are estimated at a total project cost of $370,200. Based on the estimated total project cost of $3,355,000, total assessments of $910,400 and Elk River Municipal Utilities contribution of $370,200, the remaining project cost to be funding by the City is $2,074,400. XI. PROJECT SCHEDULE Informational Meeting Feasibility to City Council Public Hearing Plans and Specifications Ordered Prepare plans and Specifications Walk Through with Residents Plans and Specifications Approved by Council Advertise for Bid Assessment Hearing Bid Awarded Begin Construction Construction Substantially Complete December 7, 2006 December 18, 2006 February 5, 2007 February 5, 2007 February 2007 Spring 2007 Spring 2007 March/April 2007 April 2, 2007 April 2007 May 2007 Fall 2007 8 I I I I I I I I I I I I I I I I I I I First Assessment Payment with Real Estate Taxes Place Final Bituminous Lift May 2008 Summer 2008 XII. CONCLUSION The total estimated project cost for street, storm sewer, and watermain including overhead costs is $3,355,000. The project is necessary and cost-effective. As previously stated, this cost will be financed through a combination of assessments to benefiting properties, Elk River Municipal Utilities funds, and City funds. Based on the information gathered and the analysis presented, the proposed improvements discussed in this study are feasible from an engineering standpoint. 9 o ~ 150 ~ CONSULTING ENGINEERS, PLC 2007 STREET MPROVEMENTS STREETS TO BE IMPROVED LEGEND FULL RECONSTRUCTION ----- ~ MILL AND OVERLAY ALLEY PAVING ----- - I I I I I I I I I I I ---------------~ I I I I Ol. . ------- - I E~ EXHIBIT 1 , --------- -------- ----- ------- ---- ------ ------ .... . ,-,-~,~~.~., '^...,~^~ -------- .'~.="m..~~__'-_Vh.^-^=.,~~.~ ------- - en n % o o r- en -I . ,Cll. -I % en -I . .----- ----- I i I I I I I I I I I I I I I I I I '---'--TT---~ I I I I I I I I I U I I I I r--- I I I I I ; ; ; I I i ALl.EY WI' I I I I I I ----1 I I f I I I I I I I I I I I ALLEY I I I I I I I I I I I ALLEY .w,w~_~_,_; "www__,~_,1._w JACKSON . . . , , , -h"'._Wwo..~,...=~""'_,~~ AVE. JACKSON AVE. o Ej 150 ~ CONSULTING ENGINEERS, PLC 2007 STREET IMPROVEMENTS EXISTING SANITARY SEWER ~~,. 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U) -f . ---""1---- I I I I !---- I I I I I ,-_~._~"""'.-._,__""'""v__,,',","'" AVE. c.n -f :z:: --~ -1:---~ ALLEY' .-----r':..........::::8~:':::,:::::=:::::::: ~ t ~ J j i C') -f :z:: U) -f . OJw .. <f) I I I I I I I I JACKSON "..".".r'.'.T'-~'~'i-.--'--'i'~'-'l ::I I.. I :i ... Iii I ... : j i :: I' : II I, , 'I U) i ALL$Y' [! :-I :::.::i:::i::a':':;~~~~--~'"'~.' ."i":, @ j , , . , , ' ,~ ' I I I -8 -8?' RYING ..,A~E, @ @ ALLEY' 'l:T::~:=:::a~~ .. I: II Ii Ii Ii Ii I' I: AVE. , ~ l ~=~.=~=.=== I'=-=_ _ ==j ! : ! ; ; ~..~..~..~~~~.~~T~~~~~..='~ ,,:z:: , CD! -f' :Z::i U) -fi . CPw w @ -~- ''''''~''''. @ o Ej 50 ~ CONSULTING ENGINEERS, PLC 'I / " .// , '. / 1:\ "-~~---, " ---. " . -,>. : ;.''''~'-'~~~ "'",", "" ", \ 2007 STREET IMPROVEMENTS EXISTING WATERMAIN GATES AVE.! '-'~~~~-'V~-"'-'--""Y"---~-"-"~-"~"~"~"~;6'T'r""'~^~~'______"__~'..___~"'''=M~ ~ I I I I I I I '''~'''''''t I I I I I I I I .', " , ~ ~" EnJ'" J River I I I I EXHIBIT 3 c.n ..If "% en -~; .! " o I:.~ ,1 ~I - 1 ~'^., ..II. ...... ~ I."" (b -+I . ",. ------- -------- .mm~".~' en ..If .,~"_..,.% i ",C/) ..If . ^~.~~,~.... .. ....w..~. I . I , I ~~GATEs~mAVE 4' ----- ~.". ..,'~~)> I < m '~~.~.t,.,...."_..,."..~,~,,,-. l'j I, I I I I I I I I I I I I 1 I I I I I I I I I I I ,..1..,...",LmmmJ.'..'....Lw~w,w.J GATES "AVE. I I I i I I I I I I I i I i I , ,L.. . ------- fet:,' ,->..", ~ I I ~-------- ------- .._-_..- -6~ ~..~~-~~',.'~-~'~. CO ..If :l:m~w.w.. ! en, ..If .' -.... ""'^'....- I I I I -------------------4 I I I I c.n -I :I: ~ I cn.m"m-~-m,..,...,._. j:_r I 01 ..".-. I: L_.w",I .""" ........,HOl;T~AVE; 6'': h'.'M^'.V^-~ .~~,~ ------- ~ 6:': 1 ~ r= n~_ -- = ~--::-~ ~ --------. '._~' .......1 -------; I ;' \i ~ , I ~ -,~$ j ! ~ , I ! . ! i .. l ; i l 1 w'^HOlT~"AVE . ~.~_.~w~ en n :I: o o ... en ... . N.....~ ,Ill.. ... :I: en ... . ~ ~~-,- I ~ 4' I I ________ I I I I I ____ -...LTT---~ I I I I I I I I I U ,..~.*~~,.'~~~~N~.y~'__. IRVING AVE . ]i ---""I- I I I I . 4' .~i3- UI ..If :I: en ... . ;....."_~'_m....._.._~..... .._m.... ......--~"~~~'1.-'~~.~. : I i----rr--- I II ! II . : I: i I ."".),_.",,,.1.,__,, .......;;;;.. 24- 10 ro -~ 01: 16:': ,,~~.~.,,-~~-~=.~~ I I : , , I I . I I I . . ALLEY ._~,__.~_.:,.A~'.".=,.,'~,,,=-.v.w.=__=~,-~,. en ..If :I: en ... . r' I I I I I I ---., I I ai '"T''''T''mm_.~mT''' .m..'~ I . . I I I , 'I I I I . I I I I 'I I I I II Ii: I I 1'1 I : : ALLEY i: 1,_....L"m.m__L~m"."m"jJ' en ... . ~ ... :I: '~~T-'..T I '16:': mTm'__'''W'rmmm~~m! i I I ' j , I 1 . 1 1 . , 1 1 l ! _~~~~!__~:_"" ",i '''~~~'N.J 1 I I . I I I I I I I I (>> ..If :I: en ... . 6 "'--r--~- .. IRVING AVE. - -Et ,.-. ._L_.~,-L._m_,,___. --..! . . j_~.,~.^~'",...l..,-.....''''''''''_w~v_v~v_~~,,~'w~_,-___''' .!. JACKSON l A V E. o (j 150 ~ CONSULTING ENGINEERS, PLC 2007 STREET IMPROVEMENTS PROPOSED WATERMAIN IMPROVEMENTS ~" E~~ EXHIBIT 4 t;t PROPOSED HYDRANT LOCATION AND/OR REPLACEMENT --~---II / ., ' I f 'I, /~ GAT "+:;_.'" ~,',,! ::__ '" ,~,~ ES ':::._--~~ --, "':':;':: , J "'<>" "- '\,~-, '\ AVE. ","{'=~~~"=--=-~"",,,,y-,,,' I I I I I I I ,tit PROPOSED WATERMAIN REPLACEMENT I I I I I "1"'. I EXISTING WATERMAIN EXISTING HYDRANT TO REMAIN -----.... c.n .,. :I: (h ,-~ ., LEGEND ---- =~,",'''' 1 I 1 -\ I I 1 I ~ '"_''_V...A_..,...~..~.~~_,~",~~.=,,=~~,..,,~..'_'.''A''' .~. ..... .m....~.~ IRVING AVE. I I ______ 1 I 1 : I -- --'-TT---~ I 1 1 I 1 I I 1 I U UI .,. :I: ---1""---- :fn I'" I . r-- I I I 1 ~~-'-- . 1 t 1 , ! 1 1--- I I I I c~ <24/ A..""...."...,.,.y", I 1 , (n j "'.' , . . , ... 1 ... I , :__",_-1., ; tn . : II .,.. 1 . I , I j 1 : : L,___~,~_.......m ~ HOI;;TT' AVE. ,..t ~.-..........~..."""~' '^<. ? h~: I c.n .... ...... N t... fI) .,. -; ! 1"'1 I , I i ~~ATES-lv~ 8 l...-______ lill' ----- .- , fn .,. ., ,GA-rESAVE."~ I :. 1 I I I i I ! I I 1 : l J____L_J ~ ! 1 I I I I I 1 I I I I I .......,*. ~ ..~ r~ ""' '" "'= ^ N~~-W'----' . , :"-"""" .. "j I en I", .,. I ~,--" ...z ~ , 1'11IIII, '-'-"""-~ 0):1-'" . ' 1 } I i ------- -------- CQ .,. :c' ------ "A_"_~'_W_'== s I "".....~ ---------------~ ."" "':c ~~--------- ______~mm)> 0)..",__...,_",,_ <:"1 ' ---~ _,~_ "..rn f--------- -------- -------- 6:';-,"~ ALLEY en .,. :c fI) .,. . j I I I i I I : I I i I I' i : I I I I ALLEY ..I..""..!..,.,.' I I I I I I I I I I I fI) .,. . ~ .,. :I: ----- 1/ ALLEY . . "."-,.,.....:..,-~"....----~........,,...._-~~~- - .' IRVING AVE. .--.-..-...".-------,~t'i ~-- -~--,- .8..'......'1...] :,'. ..["'i-r",:w"I,,,,,,,w"T-.'w , ::;:::, .:~.. ~ : L: REF! LA t'lrEXilsTTi\lG-WA~ER1Vi!A IN AND RESIDE~TIAIl. SERVICES UP TO CU~B-STOP i i , \ ~ 1 i I \ . l :~...,~. ..C'!"""'_._,~,i....m..'''~ I : ....! /' I i/ f I' ....,-...A.. ...,.,. ! ! . LT--AVE. - fI); nl :l:L or 0; r-i , I fI): .,.' . ,--1: co .,. :c fI) .,. . ..l_..w,_._,...,~l i ~,~. _""~",-.-..............,_..,~~_~~_~~_~L~___~~~"",,,,~~,j JACKSON AVE. ~. o EJ 150 ~ CONSULTING ENGINEERS, PLC 2007 STREET IMPROVEMENTS EXISTING STORM SEWER E~ River EXHIBIT 5 I "N~_'_~^W"~,__,_~~~'~NN~~~,,..~~_._..,_.,~y.'._~m._N.~.~'~~"N~} 'w" GATES AVE. ",~www.www~ww_ww w~w_,wwwww.. w'.__w.~ww_wwwwrww.~ w'. .ww~ .'w_www '?.", \ i W.', i " '\ -t :1: 0J 0) U) -t~_wwwwwwww · i i ~l :: ~_._~"...^^" IRVING AVE. W.wwww_w.ww.,.www.wwwww,www~w w...r I I I I ------------------~ I I I 1 - ... - I I I I I I --I I CO I ... EY I I. ,I 1 1 :Y ... :1: :1: ...._wwwww I U) I I U) ... I ... ~ I . I . I I I I IRVING AVE. ~ - - -------- .-------- '-- ----- C') w__ --I I~www// HOLT AVE. . ... -------- ... % % ------ U) ~ ... --------- . m . CO ----- ... % '- ------ U) I I ,.....mmw.w.... ... I . I I I I . I I i------- I I I i \ GATES AVE. r~~ GATES AVE. W"ww..,w I I I I I I I I I I I I I I I I I I I I I I I I : ,.. / 12" ._m.___".~h...""___==NV~_- m HOL" AVE. I UI ..Ii. - N U) ... . U) n % o o r- tI) ... ~ ,. ... % tI) ... . I I I I I I I I I I I I I I I L--J.TT---~ ------- I I I I I I I I I U ----r--- I I I I 1---- I I I I I UI ... :z: tI) ... . 15 - ,,~,,~.~~. . ' ! ; I i 1 ' i i ! ~ I .wLww wwmm...L.w ~bb~Y~, i ,I I I I I I I 36'" .~..~~...~ C') ... % tI) ... . I AL l,~__~",,""""-~l,~-.""=m''''''~-l~~=-^''''''-"_.........,,~j J A C K SON A V E. 24" 15 JACKSON AVE. o Ej 150 ~ CONSULTING ENGINEERS, PLC 2007 STREET IMPROVEMENTS PROPOSED STORM SEWER IMPROVEMENTS ~"\ EM~ EXHIBIT 6 ~J:i~A'TW;a_^A 'lli.!! , i , 1 ~ . PROPOSED CATCH BASIN/MANHOLE EXISTING STORM SEWER----- EXISTING CATCH BASIN/MANHOLE PROPOSED STORM SEWER ..... ~~~, ; 'en 1 f':I"-.,,._-_1 1 . i i ",., ; i ,...,.." '''-~. - ~-~, i I .~~,~~~.~~. ,^^^,"'~, LEGEND I I,,, ."" len .~ 1- I-4;N i len ,-I ~. . ~-~~ i 1 -------- GATES AVE. I I I I I I I " ~----- --------- , en -I . I I I t I I I ".L GATES .AVE. r I I I I I I I .J I I I I I I I I .J I I I I I I I J ----- ..... en -I . --------- --I -I :I: ~ m . --------- .\ = -I :I: .=....-. .~ HOLT !A VE. I I I I I I I I I I I -------------------~ I I I I ell -I :1:__ tI) -I -1 1 -1 r', ; ~",: ~ -It-------- :I: HOLT AVE. .~,~, .,.... ----.........---- .- --------- en, nl :1:. ,i., or 01 r-! en: -I: . ' ( I ! I I I I IRVING AVE. I ] I I L I I - .,. NNN~ ,.. -I :I: en -I . ---------- ---------- I i I I I I I I I I I I I I I I I I L--'-TT----j I I I I I I U I t----- I I I I I en -I :I: en -I . I I I I I I , ALLEY ~N'_~_~ w_..A,.~..~~...N...___.___~y.w".'.....,"""~_"..,~.w -,*"" ~i -I . :I:! ,.==:=:~ i -Ii . ! I ~._N 'T"-""'Tr i i I l ! I 1 [I i I ! I ! I i :: ALLEY :: ~,_..NN..m~~..~.. _~_'W_=WWN.=_-"""'_-_y_"m,_"~._~~.W'..T..~ .,.~ i ! ! en -I . --I -I :I: I I I I I I I I I I ALLEY = -I :I: en -I . IRVING AVE. '-'-il1l "..l~_."___,___,,. L_~___._~",_ JACKSON ,- AVE. W" JACKSON A V E. I I o E) 50 ~ CONSULTING ENGINEERS, PLC 2007 STREET IMPROVEMENTS PROPOSED STREET SECTIONS *'\ E~\t-l ~~er EXHIBIT 7 I RVING, GATES AVENUE 5TH ST (WEST OF IRVING), 6TH, 7TH, 8TH STREETS I (1) 5TH, 6TH, 7TH, & 8TH STREETS, GATES A VENUE SIDEWALK ON ONE SIDE ONLY 2) 5TH STREET, 5TH2 STREET, HOLT AVENUE IS 14' (FULL WIDTH OF 28'). GATES AVENUE IS 12' (FUll WIDTH OF 24') TYPICAL STREET SECTION ALLEY I I ,.5" WEARING COURSE MIXlURE (MVWE35035B) TACK COAT 2" NONWEARING COURSE MIXTURE (LVNW35030B) 6" CLASS 5 AGGREGATE BASE APPROVED SUB GRADE I 4" GRANULAR BEDDING (INCIDENTAL) "4" THICK BY 6' WIDE CONCRETE SIDEWALK 2.00:11: 2.00% -1 I TYPICAL STREET SECTION ,,5" WEARING COURSE MIXlURE (MVWE350~5B) TACK COAT 2" NONWEARING COURSE MIXlURE (LVNW35030B) 6" CLASS 5 AGGREGATE BASE APPROVED SUBGRADE CONCRETE & GUTTER GRANULAR BEDDING (INCIDENTAL) "'4" THICK BY 6' WIDE CONCRETE SIDEWALK 2.00% _ HOLT AVENUE, GATES AVENUE, 8TH STREETS TYPICAL STREET SECTION (MILL AND OVERLAY) MVWE35035B) TACK COAT EXISTING BITUMINOUS EXISTING AGGREGATE BASE EXISTING SUBGRADE I I ROW 4'-20' "'16' ~ I 66' .. ROW ROW 5'-6' If. I 0'-12' 5'-6' ROW .5" WEARING COURSE 5-~~ MIXlURE ~ 2.00%__ EXISTING CURB & GUTTER REP AIR AS NECESSARY 2.00% I I 5TH (EAST OF IRVING), 5TH 1/2 STREETS GATES AVENUE 5'-10' 20' 60' 20' GATES 5'-10' I TYPICAL STREET SECTION ..5" WEARING COURSE MIXlURE (MVWE35035B) TACK COAT 2" NONWEARING COURSE MIXlURE (LVNW35030B) 6" CLASS 5 AGGREGATE BASE APPROVED SUBGRADE 2" .5" 2350 TYPICAL STREET SECTION TYPE L V3 MV4 WEARING COURSE MIXTURE TACK COAT COURSE MIXTURE AGGREGATE BASE ROVED SUBGRADE NON WEARING 6" CLASS 5 APP ROW ROW I I 4" GRANULAR (INCIDENTAL) 2.00:11: 2.00%_1 SOD 4" B618 CONCRETE CURB & GUTTER I 4'-8' 4' 4' 1'-8' 2' 2' I I I ROW ~ I 40' ROW ROW If. I 33' ROW o ~ 150 ~ CONSULTING ENGINEERS, PLC 2007 STREET IMPROVEMENTS PROPOSED STREET & SIDEWALK ~" E~~ EXHIBIT 8 .. LEGEND I I I I I I 1 1 I 1 1 ------------------~ 1 I 1 1 PROPOSED CURB OR EDGE OF ALLEY PAVEMENT ----- "~, ----- PROPOSED SIDEWALK EXISTING SIDEWALK / ~~:",:'?m'l'~~:':,~~'M~%':,'*t~~%,~~(':',,:':Gw":::tm~'N_IT~~,:,:,:;:{,:::;:/~t;~,;,,),',",_ o :,". ,~::::::: ~ "~, , I I . c.n ~l - :I: --- --- ! ~ . , -------- I . I -------- He Li.T A VI~. en --I ./I" HOLT AVE. ",- I~ ------ -- ;~ \ 1:1: :I: ----- --- Itn :I> ,~ 1< I. m f------- -- i i I . . I ------ CD UI I ~ U1 - I :I: .... ~ I m,. :1:11 j I I --------- tn I : tn ~ i , I ~ I I . 1 ~I 1 , 1 1 , , ! 1 I m. . I i I 1 I ! 1 I I \,-GATES AVE,!~ GATES AVE. .- I I 1 I 1 I ./ I I 1 I 1 I I I 1 ~ GA II:~ ~~Vl:. J/J I I I I ~ I I i I \ \ / ,. tn n :I: o o ... tn ~ . .c:.. ~ :I: tn ~ . ---L_,___~__~.~ I I 1 1 1 1 1 I 1 1 I L.-.lTT---~ ------ 1 I 1 I 1 1 1 I 1 U '-__!.-..-,___,_,._C,__,___,_..! ---""1--- I 1 I 1 ~ I I 1 I I y c.n ... :I: tn ~ . ----rr--- 'I 1 1 I I i ! I : I . . . . . . . . . . . . . . ALLEY ~---'IRVING-AVE. JACKSON ~>::- 1 1 I 1 , 1 I 1 I 1 i en 1 ~I 1! ALLEY I 1 . tn ~ . AVE. I I --Ii ~i :l:i I tn!) ~I . I I ALLEY CD ~ :I: tn ~ . I I I I I I I I I I I I I I I I ~ 1_ ___ '___ - -I I f- - --- .- --- 8TH ST. r - - - - - -- - - . . ~m~~~m_ t- : I - - - --- .. - --- ui 7TH ST. ---1--- . > . c Ii > c z 0 " Z I U) :; ~ Ii: U - I C 6TH ST. .., - l""""'P"- -- - 5TH ST. -, -l 4TH ST. 250 ~ CONSULTING ENGINEERS, PLC 2007 STREET IMPROVEMENTS AREAS TO BE ASSESSED SCHOOL ST. I , I I : I I Ii > :. ... o :c , I , I , I I I I I I I -l LEGEND _AREAS TO BE ASSESSED FOR STREET RECONSTRUCTION ONLY r AREAS TO BE ASSESSED FOR I STREET AND ALLEY . RECONSTRUCTION _AREAS TO BE ASSESSED FOR MILL AND OVERLAY ONLY _AREAS TO BE ASSESSED FOR ALLEY RECONSTRUCTION ONLY EXHIBIT 9 I I I I I I I I I I I I I I I I I I I XXII. APPENDIX A - GEOTECHNICAL REPORT A-1 337 31ST AVENUE SOUTH · PO BOX 325 · WAITE PARK, MN 56387 PHONE: 320-253-4338. FAX: 320-253-4547. EMAIL: itt@astound.net WEBSITE: www.independenttestingtech.com NOY S 4) 2005 November 29, 2006 Mr. John Anderson City of Elk River 13065 Orono Parkway Elk River, MN 55330 Re: 06-507A - Addendum to Report of Geotechnical Investigation Irving Avenue Area Improvements Elk River, Minnesota Dear Mr. Anderson, Our initial report dated November 13, 2006 included a recommendation for pavement design bas-ed on an assUnied R-value of70. A representative sample of expected subgrade material was tested for laboratory R-value. The results of that test are attached. Those results indicate an R-value of 66 for the sand from boring B-1 that was tested. This result is an insignificant difference and essentially conf:'iifhs-out-ong-InaneCOrDiiietidatibli foia pavement design based on an R..value of70. The recommended pavement section meets a 9-ton design for residential streets based on this lab test and MnDot guidelines. Mr.- Anderson, it has been our pleasure to be of service to you on this project. Please feel free to contact us if you have any questions. Sincerely, - --PJi--~ - -- - - ------ ----------- Patrick A. JOt-PE Geotechnical Division Manager Independent Testing Technologies, Inc. Phone: 320-253-4338 Fax: 320-253-4547 I I I I I I I I I I I I I I I I I I I . ANALYSIS . DESIGN .1~;llleIle · !\\;Invill PROFESSIONAL PAVEMENT ENGINEERING A CALIFORNIA CORPORATION . SOilS, ASPHALT TECHNOLOGY November 19; 2006 rtA" in .. .., rrC. :.JYLr. '.C'atnc"'-lort1tsoii . I naepencfent rr'esting rtecnnofogies Post Office CBo::( 325 rvVaite Par~ ~1.f 56387 Project # 34095 (Dear ~1: Jo/inson: - Testing of the bulk soil sample delivered to our laboratory on 11/13/2006 has been completed. ~: No. o6-~o1'~~~~~~~"/'''>' t~1inlple:;';Minnesot~~:f\.1odifie(l', <'. . ;.~~, ;C'. . . ....,;- '~, '.~.'.' . .; ,..-.-.,,~ ,0~Irving . Ayenue hnproveIDep,ts Ptoject1;, j1BC~ty. of BE~Il(Ij~\re ''Y ~~~~ ';~/i\ \ft' onng - 'r ", "'~ .'" -- - -- -- -- - -- - -- - u -l~ -- ----. l./ - .,,<~\;;/~ ~ R-Value data sheetst~reattached'Jo.. our u e. The~opporrmJity to be of service is sincerely appreciateli~I:tg..~,h2;J:dd yo~ ~lave a OIlS, ~d1y c t ":. :. .~~~~~..:~ ~ .: t~ \ 1 ~': Cl{espectfulfy Su6ml.~,p,-~'<~< __"'~<t~"_; ,:c""~;-~~~;:>~__ '~~Q;~,.,_ ; :-\~ . ~ ~-. -'i:'~'~\~~$~~~~l'-a,;;~~~;{'..~:it::;'-- , ,- I .....~.- \, ..; - / /~ . '~'Jjjjj/ Steven ~ :Marvin ~ 30659 5'R;H:itJ 2700 S. GRAND AVENUE. SANTA ANA, CA 92705-5404. (714) 546-3468 . FAX (714) 546-5841 IN FO@LABELLEMARVIN.COM I I I I I I I I I I I I I I I I I I I R - VALUE DATA SHEET PROJECT NUMBER 34095 P.N.06-507 City of Elk River BORING NUMBER: B-1 Irving Avenue .SAMPL-E..DESCRIPTION: Brown Slightly Silty Sand Item SPECIMEN a b c Mold Number 1 2 3. Water added, grams 152 132 121 Initial Test Water, % 12.9 11.2 10.3 Compact Gage Pressure,psi 100 160 185 Exudatipn Pr~ssure, psi 110 350 450 Height Sample, Inches 2.53 2.55 2.54 Gross WeiQht Mold, grams 2979 3017 3026 Tare Weight Mold, grams 1965 1969 1977 Sample Wet Weight, grams 1014 1048 1049 Expansion, Inches x 10exp-4 0 0 .. 0 Stability 2,000 Ibs (160psi) 18 I 37 17 I 33 16 I 32 Turns Displacement 4.84 4.79 4.74 R-Value Uncorrected 63 67 68 R-ValueCorreCted 63 68 69 Dry Density, pcf 107.6 112.0 113.5 DESIGN CALCULATION DATA Traffic Index Assumed: 4.0 4.0 4.0 G.E. by Stability n. - ... . '0:38 0.33'. .. 0.32 G. E. by Expansion 0.00 0.00 0.00 ....... . 6.6 . ...Examined&-Checked:. . . ~1/~-5106 .. Equilibrium R-Value by I . - .. .. . --.. . .. ... EXUDATION ~~, - Gf = 1.25 f':'-:k'/::-~V 0.0% Retained on the ~ t~~~,,~~ '~h;."; ~ .~~ - )r:;; - REMARKS: .... -- .. - -3/4L'''sieve:-' . ....... . non ...... ~L\"" ..~~ -.:;- /--:-.,' Partial Free Drainage. tt~j~~~~!~[~!JCE 30659 J "~!,.'i" ;:;'c,\.;,~2/ The data above is based upon processing and tes~mple's as "received from the field. Test procedures in accordance with Physical Research Section, Office of Research Coordination, Minnesota Department of Highways, Investigation No. 176. IAf;llleIle (8 !\\;II~vill I I I I I I I 800 1- e-:4 I~ 0 H Ii I:rJ I: en ~2 I~ ~ c:: I ~ 1 8 R-VALUE GRAPHICAL PRESENTATION PROJECT NO. :s40<1S ~~. 0C0-50' BORING NO. l$-l -:r:i'uL!19\ ~'\.e. - C~ ~G:\"~.J~\ DATE \\- \5- O(P TRAFFIC INDEX k.~~ 4. a ...--- R-VALUE BY EXUDATION GJ...(! R-VALUE BY EXPANSIO~ - . 1,~~-'- 700 600 500 400 300 ~oo 100 I 1.0 2.0 3.0 I COVER THICKNESS BY EXPANSION, FT. I 4.0 . 400 l.f) 350 co ...J 300 l.1J e::: :::l 200 l.f) l.f) w e::: 0- 100 e::: 0 I- u 0 c:( 0- ::E: 0 u 100 . 90 t: 80 70 60 50 40 30 20 10 o Ii 1& III R-VALUE VS. EXUD. PRES. I ~ A . EXUD. T vs. EXP AN. T I REMARKS (3k-:A,ZS: u' oJ\V\ -- ~~)~ eJ) , '-"'" I 'z.-:~-': _.:~.:; "J-." ..----. ....... "~l' .... :....:::.: '_. ... .-.. - -''-- r" -- -.-... '-;.r:" .... -... -==t.::: ..~... -r'" ............. ,,'.' .. -t- ..... --. .... ...- --- ...- ili&;;: :st:::: ::: h1; ~ff::~ -:::::::: g~f~~~ ......... :~:~~:-:~ :;;~:.:: ..::~:~~; :.:;: ::;:;........:. ;:;;\.=:(: ::;it;:.:.: ::::1:::: ......... ~;;r;..,.. '~;Lt=:J ~.... ;::;; =:;:;t=:: .:~t:::: :::fI:~: ::::r_::: :~.:::=--:- .ffifi~ :.:_mrr-~~Uf~ :::ik: :;~;1~~~~ ~i~~iT ~:q~~:: -.,.... 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" t=1.' ~::.: ::::::~ .... ..- " - ~ U<" o 4.0 3.0 .0 .0 lO.O ct.1O '2..0 % MOISTURE K M M T by EXUDATION A A A T by EXPANSION IAIIBelIe · A\\;ln.. PROFESSIONAL PAVEMENT ENGINEERING 337 31ST AVENUE SOUTH. PO BOX 325. WAITE PARK, MN 56387 PHONE: 320-253-4338. FAX: 320-253-4547. EMAIL: itt@astound.net WEBSITE: www.independenttestingtech.com ~~V ~ 0 2006 November 29, 2006 Mr. John Anderson City of Elk River 13065 Orono Parkway Elk River, MN 55330 Re: 06-507 A Irving Avenue Area Improvements Elk River, Minnesota - . - Dear Mr. Anderson, Enclosed are boring logs for two additional borings conducted in the proposed mill and overlay portion of the above referenced project site. Boring B-16, conducted on Holt Avenue, encountered 2 inches of bituminous pavement over 3.5 inches of aggregate base. Boring B-17, conducted on Gates Avenue, encountered 6 inches of bituminous pavement over 3 inches of aggregate base. Mr. Anderson, it has been our pleasure to be of service to you on this project. Please feel free to contact us if you have any questions. Sincerely, -- u___ u -- paE1iJ~E Geotechnical Division Manager Independent Testing Technologies, Inc. Phone: 320-253-4338 Fax: 320-253-4547 INDEPENDENT TESTING TECHNOLOGIES, INC. PROJECT: 06-S07ACITY OF ELK RIVER DATE: 11-22-06 IRVING AVENUE AREA . START71ME:10:52 2007 RECONSTRUCTION PROJECTS ELK RIVER, MINNESOTA LOCA710N: Holt Avenue, South of School Street. I I I I I I I I I I I I I I I I I I I Sample # 4.0 Boring complete to 4 feet. No water was encountered during drilling. LOG OF SOIL BORING BORING #:B-16 END TIME' 11:00 METHOD: 3 1{4" 1.0. Hollow Stem Auger CREW: RB - ED ELEVA710N: NOT AVAILABLE Pa e 1 of 1 N Water Value Table Notes 8 ASTM S mbol 4.0 Boring complete to 4 feet. No water was encountered during drilling. LOG OF SOIL BORING DATE: 11-22-06 BORING #:B-17 START 77ME: 11:10 END TIME: 11:19 Sample METHOD: 31/4" 1.0. Hollow Stem Auger CREW: RB - ED ELEVATION: NOT AVAILABLE Pa e 1 of 1 N Water Value Table # Notes 8 I 337 31ST AVENUE SOUTH. PO BOX 325. WAITE PARK, MN 56387 OFFICE: 320-253-4338. FAX: 320-253-4547 I I I I I I I I I I I I I I I I I NOVEMBER 13, 2006 PROJECT 06-507 A REPORT OF GEOTECHNICAL EXPLORATIONS - -- - -. -- - -- -F-or -- - - - -- - -- 2007 STREET RECONSTRUCTION IRVING AVENUE AREA ELK RIVER, MINNESOTA Prepared For: CITY OF ELK RIVER And BDM CONSULTING ENGINEERS I I I I I I I I I I I I I I I I I I I 337 31ST AVENUE SOUTH. PO BOX 325. WAITE PARK, MN 56387 OFFICE: 320-253-4338. FAX: 320-253-4547 November 13,2006 Mr. John Anderson, P.E. City of Elk River 13065 Orono Parkway Elk River, MN 56330 RE: 06-507 A Report of Geotechnical Exploration 2007 Street Reconstruction Irving Avenue Area Improvements Elk River, Minnesota Dear Mr. Anderson: Independent Testmg Technologies, Inc. is pleased to submit the results of our subsurface investigation program for this project in Elk River, Minnesota. This report represents our work for this project as authorized by you. It includes our recommendations regarding earthwork, fill and compaction, utility installation, subgrade preparation, and pavement design~--Three copies are enClosed~ - The soils on this site are well suited for the proposed utility installation and street reconstruction. The majority of the soils encountered were fme to medium grained, silty sands (8M) and fine grained, poorly graded sand (SP, SP-SM). Soil samples obtained during our investigation will be stored at our office for thirty days after the date of this report. After that time, they will be disposed of unless you advise otherwise. Mf. Anderson, it has been our pleasure to work with you on this project. Please contact us if you have any questions or need additional services. Sincerely, P~~.~~E. :rv1N Registration #22037 I I I I I I I I I I I I I I I I I I I CERTIFICATION -- - I hereby certify that this report was prepared by me or under my direct supervision and that I am a duly Registered Engineer under the laws of the State of Minnesota. p~~iM~n Date:~ Registration No.: November 13, 2006 2z031 22037 I I I I I I I I I I I I I 'I I I I I I TABLE OF CONTENTS A. Introduction .... ................ ................... .......... ..... .................... 1 ...._...___0..____ _ Purpose ....................................... ....................... .................. 1 Scope of Services ................................................................ 1 General Site Conditions........... ................ .... ......... ............... 2 Available Subsurface Information....................................... 2 B. Exploration Program ...... ...................................................... 3 Exploration Results ........ ...... ....... ...... ........ .......................... 3 Penetration Test Results ...................................................... 3 Water Level Observations ...................................................4 - . --- - ----------------- - ------------.------------------...---------------------_.------. +. C. Engineering Review............................................................. 4 Discussion............................................. .............. ................. 4 D. Recommendations .... ..... .... .......... ............... .......................... 5 Utility Installation.................................. ...... ................ ........ 5 Earfuwork ............................................ ..................... ........... 6 Structural Fill..... ............ ...... ......... ............. ..... ..................... 6 E. Pavement Recommendations ................................................ 7 F. Closing ......... ................ ....... ........ ...................................... .... 8 Boring Location Plan ................................................Appendix 1 Soil Boring Logs .......................................................Appendix 2 I I I I I I I I I I I I .1 I I GEOTEC~CALEXPLORATIONS CITY OF ELK RIVER 2007 STREET RECONSTRUCTION IRVING AVENUE AREA IMPROVEMENTS ELK RIVER, MINNESOTA PROJECT 06-507 A A. Introduction This report is being prepared for use by our client on this specific project. We intend to present this report and our findings in the same logical manner that led us to arrive at our recommendations. This report is based on some general assumptions regarding the anticipated construction based on experience with similar projects. These assumptions and the entire report should be reviewed immediately upon receipt. Purpose: The purpose of our investigation was to evaluate the existing soil and water conditions on this site for the purpose of reconstructing several residential streets throughout the City of Elk River. The project will consist of bituminous street reconstruction with curb and gutter - . -------------- ---- -----_._-~.__._---- and some storm sewer improvements. Some water main will also be replaced along 6th Street, 7th Street and Gates Avenue. In accordance with your written authorization, we have conducted a subsurface exploration progr.am for the proposed project. Scope of Services: Our authorized scope of services included the following: 1. To investigate the subsurface soil and water conditions encountered at fifteen (15) split-spoon soil boring locations. The boring depths were planned to be 5 feet at each location. The approximate locations are shown on the boring location plan in Appendix 1. Page 1 I I I I I I I I I .1 I I I I I II I I I November 13, 2006 Project 06-507 A 2007 Street Reconstruction Irving Avenue Area Improvements Elk River, Minnesota 2. To provide a report of our fmdings including the results of our subsurface investigation and recommendations regarding earthwork, fill and compaction, utility installation, subgrade preparation, and a design R-value - -_._-- - -- ----- - -------------- for pavement design. General Site Conditions: The proposed project site is located in an existing residential neighborhood south of School Street NW and west of Jackson Avenue in the City of Elk River. The existing residential streets are bituminous paved with no curb and gutte~. The site is relatively flat with slopes of2-6 percent. The streets throughout the nei~.~~r~oo~. flI"e. gel?-~rally .sl~o'Ning;tl1e.ir_ ag~ wi~dis~ess. cra.~.~.rlg .~~~.on.. .. ..... _. _ . Available Subsurface Information: According to the Geologic Map of Minnesota, Quaternary Geology, prepared by Howard C. Hobbs and Joseph E. Goebel (1982, Minnesota Geological Survey), this site lies within a glacial outwash unit not associated with any particular moraine. It is associated with the Des Moines Lobe glaciation of Pleistocene, Late Wisconsinan age. The till of this moraine consists of grey, calcareous drift with shale and limestone clasts derived from p8:l"eIlt m~~~ri8:qnManit()~a .a~d ~~s~~.fP:l\!.or:t~ p*()t~... . ... _.. ................ According to the Soil Survey of Sherburne County prepared by the Soil Conservation Service, this site lies within the Hubbard-Estherville-Salida Soil Association. These consist of nearly level to gently rolling, sandy soils over deeply leached sand or calcareous gravel. Most of the individual soils mapped on this site are sands, which have slight to moderate limitations for development oflocal streets. The soils on this site typically have seasonal high water tables deeper than 6 feet. Page 2 I I I I I I I I I I I I I I I I I I .1 November 13, 2006 Project 06-507 A 2007 Street Reconstruction Irving A venue Area Improvements Elk River, Minnesota B. Exploration Program Fifteen (15) split-spoon soil borings were conducted on this project The borings were advanced to depths of 4 to 10 feet using a 3 1/4 inch I.D. hollow stem auger. Samples were obtained every 2 i/2 feet using- a 2-iIich O.D. split-spoon sampler in accordance with the American Society for Testing and Materials (ASTM D1586). Standard penetration values (N-values) were obtained at each sample interval by driving the sampler into the soil using a 140-pound hammer falling 30 inches. After an initial set of 6 inches, the number of blows re-quireli -ro--drive1he samp-Ier12 -inches-is kn-own- as the- standard- pe-netrafiOnl"esistan-ce- orN- value. Where the sampler can not be driven at least 6 inches by 50 blows of the hammer, the total number of blows as well as the distance driven is reported on the boring logs. Groundwater levels were noted during drilling and immediately after completion. The holes were backfilled with the auger cuttings and patched with bituminous cold patch. SOIne settlement of the bore holes may be expected. All of the borings were conducted with a truck _ mounted rig. The boring locations were staked by us. Exploration Results: All of the borings were conducted on existing bituminous paved streets. The borings all ep.~q~nt~~eg__1;>i~o~~__tQ _4~pfus _Qf ~:_Q _t9 4_~5. jp:~lJ.~s_~ft~ggreg~te_p~~ t9~~pth$ _Q(3.0 to 7.5 inches. Below the pavement, the borings generally encountered fme to medium grained poorly graded sand with silt (SP-SM) and clean, poorly graded sand (SP) to termination. Boring B-2 encountered some silty sand (SM) with layers of clayey sand (SC) from 4 feet to 7.5 feet. Most of the sand encountered in the shallow borings was likely fill. No organic soils or other unsuitable material was encountered. Penetration Test Results: The blow counts in the sand soils ranged from 2 to 15, which are low to moderate, indicating they are in a loose to medium dense condition. Refusal of the spoon or auger did not occur in any of the borings and the drilling was relatively easy in the all of the borings. Page 3 I I I I I I I I I I I I I I I I I I I November 13,2006 Project 06-507A 2007 Street Reconstruction Irving A venue Area Improvements Elk River, Minnesota Water Level Observations: Observations of the subsurface water conditions were made during drilling operations. - - - -- -- -- - - -- . - - -- _. - -. - -.. -. - - - -. - - - --. - -. + + _. - - - -. - - - -. - -. - - - - - - - -- Groundwater was not encountered in any of the borings during drilling. Although the water levels were observed over a short period of time, we feel they are an accurate representation of the water levels on this site at the time of our exploration because of their high permeability. It should be noted that fluctuations in the level of the groundwater can occur due to variations in rainfall, temperature, spring thaw and other factors not evident at the time of our investigation. Mottled soils were not observed. Mottled soils are a historical indication of a temporarily or seasonally saturated soil condition. Grey soils were also not observed. Grey soils are an indication of a permanently saturated soil condition. c. Engineering Review Discussion: Based on our fmdings, this site appears to be well suited for the proposed street reconstruction. The existing soils on this site are suitable for support of the utility pipes and structures. The sand soils encountered on this site consisting of clean, poorly graded sand (8P), poorly graded sands with silt (SP-8M) and silty sand (SM) are excellent for bituminous pavement support. We do not foresee any unusual soil conditions during construction. The subgrade soils are loose and should be compacted and tested to verify compaction to 100% of standard proctor maximum density prior to placing the aggregateubase. Page 4 I I I I I I I I I I I I I I I I I I I November 13,2006 Project 06-507 A 2007 Street Reconstruction Irving Avenue Area Improvements Elk River, Minnesota D. Recommendations The following recommendations are bas~d on our understanding of the proposed project. If our understanding of the project is not accurate or if changes are made to the project scope, please inform us so that our recommendations can be amended, if necessary. We have included recommendations regarding earthwork and construction that may help in cost estimates and aid in design. We should be allowed to review the proposed construction plans to provide further detailed recommendations, if necessary. Without the opportunity to review the final construction plans, the recommendations made in this report may no longer be valid. Utility Installation: - -------- ---- -- -------..-- +---- -- ----------- - --------- -----------.-- We recommend that all utility pipes lay in non-organic mineral soils capable of supporting the pipes. Excessive over-excavation beneath the pipes should be avoided. We recommend that 2 to 6 inches of granular beddingmateriaLbe placed and compacted around the pipe to aid in aligning the sanitary sewer pipe for line and grade. Granular bedding beneath watermain and storm sewer pipe is not as critical. Compaction should be done very carefully by hand to prevent the pipe from shifting. We recommend that the backfill be compacted with a static sheep's foot roller after the backfill is 2 feet above the top of the pipe. Vibratory compaction should only be used on clean sands or silty sands at .-------- - -- ------ - . ...<. --- .. - - - - ---------- ------ ----_. --------- .-.-..-- --- --. - --. -- or below optimum moisture. We recommend that excavations slope at a 1.5:1 (horizontal: vertical) ratio from the bottom of the excavation to the surface. Stockpiled material should be kept at least 2 feet from the edge of the excavation. This is the minimum required by OSHA. We recommend all construction vehicles be kept at least 5 feet from the edge of the excavation. An escape ladder should be provided at all times while workers are in the excavation. All excavations must meet OSHA standards (29 CFR1926). Page 5 I I I I I I I I I I I I I I I I I I I November 13, 2006 Project 06-507A 2007 Street Reconstruction Irving Avenue Area Improvements Elk River, Minnesota Earthwork: We recommend that any unsuitable, uncompacted, or unstable soils exposed during construction be removed from beneath the proposed utility structures and street section. In addition, we recommend that any excavation below a utility structure or street section be oversized one foot for every foot of fill placed to reach planned grade (1: lover sizing). Structural Fill: The onsite soils consisting of poorly graded sand (SP) and poorly graded sands with silt (SP-SM) are considered excellent material for use as street subgrade m~terial. These soil types are relatively easy to compact using vibratory compaction methods. The onsite soils ~<?~~isti~gof.silty san.~.s .cSMtar~.co.n~id~~~<iXair.!!l~le.ri~ fq~ .!lJ~ ?S _~~~~AI tHL These soils are somewhat susceptible to moisture variations and would need to be dried or mixed if they become wet prior to compaction. In addition, they have moisture contents above optimum for compaction and will require drying or mixing to reach optimum moisture for compaction, even in their natural state. We recommend that any imported fill and utility trench backfill material consist of mineral soils meeting the requirements specified below. No organic soils, roots, stumps, t<?g~~ .l?D:!sh, ~!~~._shC)~l(t12~ .1!~~4_ as_ str:1!~1:uJal fill_below any utility structure or pavem~nt section. We recommend that all fill and utility trench backfill material be free of soft, wet or frozen soils, highly expansive soils, rubble, debris and rocks in excess of 6 inches in diameter. The fill and utility trench backfill material should be as uniform as possible both in composition and moisture content. We recommend that all fill and utility trench backfill material be placed in 12-inch loose lifts and compacted to a minimum of 95% of standard proctor maximum density (ASTM Page 6 I I I I I I I I I I I I I I I I I I I November 13,2006 Project 06-507 A 2007 Street Reconstruction lrving A venue Area Improvements Elk River, Minnesota D698). Any fill placed in the top 3 feet of the road subgrade should be compacted to at least 100% of standard proctor maximum density. All fill and utility trench backfill material should be compacted ata moisture content within plus or minus 2% of the optimum moisture as determined by a standard proctor. We recommend compaction tests be taken at a minimum rate of one test per two feet of fill per 200 linear feet of the utility trench backfill, roadway sub grade, and aggregate base material. E. Pavement Recommendations - The expected subgrade soils in the Irving Avenue Area consist of poorly graded saftds with silt eSP-SM) and clean, poorly graded sand eSP) outwash soils. These soils are classified as A-l-b and A-3soils in accordance with the American Association of State Highway Transportation Officials (AASHTO) classification system. A-l-b and A-3 soils are rated excellent material for use as roadway sub grade material. Without benefit of a laboratory R-value determination and based on Mn/DOT guidelines, an R-value of 70 can be assumed for the onsite soils. The laboratory R-value test is expected to confirm this. Based on an assumed R-value of70, we recommend the following bituminous pavement section for low-volume, residential streets: Thickness 1.5" 2.0" 6.0" 9.5" CourselDescription Mn/DOT 2360 LV -3 Wear Course Mn/DOT2360 LV-3 Non-Wear Course Mn/DOT 313 8 Class 5 or 6 Aggregate Base TOTAL G.E. 3.4" 4.5" 6.0" 13.9" Page 7 I I I I I I I I I I I I I I I I I I I November 13, 2006 Project 06-507 A 2007 Street Reconstruction Irving A venue Area Improvements Elk River, Minnesota In using the above R-value for bituminous pavement design, it is essential that the ~~~gra_d~ _b_e_ c()nstruct~d ()(~ifoP?1_ soils _at a ~9i~tllr~C9me~t~~A~!lsity m ~ccorgance with Mn/DOT specification 2105 and capable of passing a test roll in accordance with Mn!DOT specification 2111. The native, undisturbed soils may need preparation (drying and compacting) to pass a proof roll. If the subgrade is not compacted, uniform and capable of passing a test roll, then we recommend the subgrade be scarified and recompacted or sub cut and geotextile fabric placed along with select granular material - - meeting Mn!DOT specification 3149. The top of subgrade should be compacted to_a minimum of 100% of standard proctor maximum density. The subgrade should be-sloped towards the edges to provide drainage. F. Closing Our work was performed for geotechnical purposes only and not to document the presence or extent of any contamination on the site. We can note that our crew did not detect any obvious contamination by sight or smell during drilling operations. However, human senses are limited in terms of contamination detection and, therefore, the lack of detection through human sensing does not preclude the possibility of the presence of contamination of the site. 'Th_~S_ r.~?o~ _r~J>~~sent~the_ ~esu_It ?~~ur sU~~ll!fac~ _in"es!i~a.t~o~and isnbased ()n_ information gathered at specific locations. Subsurface conditions can change a great deal over short horizontal distances. Also, the actual interface between strata will likely be a gradual transition rather than an abrupt change as represented on the boring logs. Geotechnical engineering is based extensively on opinion. . Therefore, the data contained Page 8 I I I I I I I I I I I I I I I I I I I November 13,2006 Project 06-507A 2007 Street Reconstruction Irving A venue Area Improvements Elk River, Minnesota in this report should be used as a guide, and we recommend that construction monitoring be performed by a qualified geotechnical engineer or technician. Any changes in the subsurface conditions from those found during this geotechnical exploration should be brought to the attention of a soils engineer. c:b6507 A-rpt Page 9 I I I I -I I I I I APPENDIX 1 I BORING LOCATION PLAN I I I I I I I I I I I I I I I I I I I _ I I ~~ cs~ ~x I I I SCHOOL ST. V) ~ '-> ..,.. NW "';) I r 4TH ST. ~ ~ BDM CONSULTING ENGINEERS, PLC . L -. .. .- ...,......,..,..,... ;_0 rVlllI ~::= ~~_.' NOR Tf .0, ~;C:I< .' AUU. $';- \ '. .~..1 . BTHlsT., . .., .' , , ~ ~ ~ <: (2) Vj ~ '-> ~ "';) I ~8~q " "617jS~T.~:/':, ,'. , 11 ..........." I! ~ ~,'LJ - .;, . ,.. '. 77li.' A~ ~ (A..B ~.... . 7THI)5.T...,.... .<:. .. '". ... .'.: ~" 'co <.:>' ,-,V"" 7-::"- - ;:::;.' AffD. ~ ., 1 ~.. ~,!>.'...'..'. .. ......~TH 'J "i <: (2)- ~; ~;;! II = ~i rTllln4ml~~~ Jl\ / " ~/ , ,.. ., ~- ~ , ). c , ~a ,,, , l.,j ~ ....... 5TH,Ie ......... ~ f--_ f-- ELK RIVER PLAZA RRAC ~=:::: ~-.._.- ,i -' ~ )--{ ~3::~ ~~~:t .J..::d=- 1;,:5-=. AUU. ~~~E~~>-;:2~~~13:E~: - --- ... . .. n '. . ~/ ;: ~ ."" .rLll '-> ... .s.'" I 4 "'T\ ";l;) ", -,. ~ ~ \J p.NE: a t2 ("1" : ~' - PPf:'C./L EI'to', {:'c T- ~ '- . '. . r-~~ V- "- S131 V~ . ~. ...S1 '2;:}TRI"";~" ~ '\ o OMt ~' =r[ . .):~6~ If ADD. j' <..:'.:.STH..,:.ST...... .. JRD ADD. WA vEl'S OD. ?l 7StD . S[...~8~:{2..'~. bY ::s: ~ J-- ";;"1 II - 5~ ' ..-c' .':)//:/ :\\; ~,~-5 . I LEGEND ~ .. . I,::,,'j SJREET RECONSTRUCTION ~ .....- 1~~'::jMILL AND OVERlAY ~ALU:Y PAVING .~. .",.. ~UD/TOR'S 2 UB. NO. 4 (5 5;:.. ~. 9:" .-..;: V) t...J ~ &1-(0 2007 STREET RECONSTRUCTION IRVING AVENUE AREA Elk -- River EXHIBIT 2 OF 2 I I I I I I I I I I I I I I I I I I '1 APPENDIX 2 SOIL BORING LOGS I INDEPENDENT TESTING TECHNOLOGIES, INC. PROJECT: 06-507ACITYOFELKRIVER DATE: 11-1-06 I IRVING AVENUE AREA START 71ME: 9:35 2007 RECONSTRUCTION PROJECTS ELK RIVER, MINNESOTA LOCA 710N: Irving Avenue Between School St & 8th St Sample # Boring complete to 4 feet. No water was encountered during drilling. LOG OF SOIL BORING BORING #:B-1 END 71ME: 9:54 METHOD: 31/4" I.D. Hollow Stem Auger CREW: ED/NF ELEVA710N: NOT AVAILABLE N Water Value Table Notes NMC = 6.8% Va < #200 = 2.2% 2 I INDEPENDENT TESTING TECHNOLOGIES, INC. PROJECT; 06-507 A CITY OF ELK RIVER I IRVING AVENUE AREA 2007 RECONSTRUCTION PROJECTS ELK RIVE~ MINNESOTA LOCA710N: Irving Avenue between 7th St & 8th St SM IL TV SAND, fine grained, brown. hanges to w /Iayers of clayey sand at 6 feet. SP POORLY GRADED SAND, fine grained, dark brown. Boring complete to 11.5 feet. No water was encountered during drilling. Sample # LOG OF SOIL BORING DATE: 11-1-06 BORING #:B-2 . START TIME" 10:05 END TIME: 10:23 METHOD: 31/4" 1.0. Hollow stem Auger CREW: ED/NF ELEVATION: NOT AVAILABLE Pa e 1 of 1 N Water Value Table Notes 2 NMC = 11.9% % < #200 = 17.0% 3 6 4 INDEPENDENT TESTING TECHNOLOGIES, INC. PROJECT: 06-507ACITY OF ELK RIVER DATE: 11-1-06 IRVING AVENUE AREA START7TME: 10:30 2007 RECONSTRUCTION PROJECTS ELK RIVER, MINNESOTA LOCA7ION: Irving Avenue Between 6th St & 7th St Soil Desai tion n Bituminous Depth. 7n Aggregate Base. Somple # SP-SM POORLY GRADED SAND wI SILT, fine to medium grained, ark brown - Fill. LOG OF SOIL BORING BORING #; B-3 END 7TME: 10:42 METHOD: 31/4" 1.0. Hollow Stem Auger CREW: ED/NF ELEVA7TON: NOT AVAILABLE N Water Value Table Notes 4 I INDEPENDENT TESTING TECHNOLOGIES, INC. PROJECT: 06-507A CITY OF ELK RIVER DATE: 11-1-06 I IRVING AVENUE AREA START7TME:l0:49 2007 RECONSTRUCTION PROJECTS ELK RIVE~ MINNESOTA I LOCA lION: Irving Avenue Between 5th St & 6th St LOG OF SOIL BORING BORING #:B-4 END 7TME: 10:56 Sample # METHOD: 3 1/4" 1.0. Hollow Stem Auger CREW: EO/NF ELEVA7TON: NOT AVAILABLE N Water Value Table Notes 7 I INDEPENDENT TESTING TECHNOLOGIES, INC. PROJECT: 06-507 A CITY OF ELK RIVER I IRVING AVENUE AREA 2007 RECONSTRUCTION PROJECTS ELK RIVER, MINNESOTA I LOCA lION: Irving Avenue, South of 5th Street. Soil Desai tion 3.Sft Bituminous Depth. 7.5" Aggregate Base. SP-SM POORLY GRADED SAND wi SIL Tt fine grained, dark brown - Fill. Sample # LOG OF SOIL BORlNG DATE: 11-1-06 BORING #:B-5 START 11ME: 11:00 END lIME: 11:08 METHOD: 31/4" 1.0. Hollow stem Auger CREW: ED/NF ELEVAlION: NOT AVAILABLE N Water Value Table Notes 3 I INDEPENDENT TESTING TECHNOLOGIES, INC. PROJECT: 06-S07ACITY OF ELK RIVER DATE: 11-1-06 I IRVING AVENUE AREA START7TME11:15 2007 RECONSTRUCTION PROJECTS ELK RIVER, MINNESOTA I LOCATION: Irving Avenue, North of 4th Street. LOG OF SOIL BORING BORING #: B-6 END TIME: 11:21- Soil Desai tion .5" Bituminous Depth. 6.5" Aggregate Base. METHOD: 31/4" 1.0. Hollow Stem Auger CREW: EO/NF ELEVA7TON: NOT AVAILABLE N Water Value Table Sample # Notes SP POORLY GRADED SAND, fine to medium grained w/a ace of GRAVEL, brown - Fill. NMC = 3.8% % < #200 = 1.1% 4. INDEPENDENT TESTING TECHNOLOGIES, INC. PROJECT: 06-?07ACITY OF ELK RIVER DATE: 10-31-06 IRVING AVENUE AREA START lIME: 12:20 2007 RECONSTRUCTION PROJECTS ELK RIVER, MINNESOTA LOCATION: 8th Street Between Irving Street and Jackson Avenue. LOG OF SOIL BORING BORING #;B-7 _ _ _ END lIME' 12:28 METHOD: 31/4D I.D. Hollow stem Auger CREW: ED/NF _ ELEVAlION:NOT AVAILABLE N Water Value Table Sample # Boring complete to 4 feet. No water was encountered during drilling. 4 Notes I INDEPENDENT TESTING TECHNOLOGIES, INC. PROJECT: 06-507 A CITY OF ELK RIVER DA TE: 10-31-06 --~-~--------_.- I IRVING AVENUE AREA START 71ME: 12:40 2007 RECONSTRUCTION PROJECTS ELK RIVER, MINNESOTA I LDCA lION: 7th Street Between Irving Avenue & Jackson Avenue LOG OF SOIL BORING BORING 11:.' B-8 END 71ME: 12:49 ME77iDD: 31/4" 1.0. Hollow Stem Auger CREW: ED/NF ELEVA710N: NOT AVAILABLE Pa e 1 of 1 N Water Value Table Notes Sample # NMC = 6.4% % < #200= 3.9% Boring complete to 4 feet. No water was encountered during drilling. 4 I INDEPENDENT TESTING TECHNOLOGIES, INC. PROJECT: 06-507ACITY OF ELK RIVER DATE: 10-31-06 I IRVING AVENUE AREA . START 71ME12:59 2007 RECONSTRUCTION PROJECTS ELK RIVER, MINNESOTA I LOCA710N: 6th Street Between Irving Avenue & Jackson Avenue. LOG OF SOIL BORING BORING #: B-9 END 71ME: 1:05 Soil Desai lion n Bituminous Depth. 6" Aggregate Base. METHOD: 31/4" I.D. Hollow stem Auger CREW: ED fNF ELEVA710N: NOT AVAILABLE N Water Value Table Sample # Notes BOring complete to 4 feet. No water was encountered during drilling. 6 I INDEPENDENT TESTING TECHNOLOGIES, INC. PROJECT: 06-S07ACITY OF ELK RIVER DATE: 10-31-06 I IRVING AVENUE AREA . STARr 71ME: 1:00 2007 RECONSTRUCTION PROJECTS ELK RIVER, MINNESOTA I LOCA710N: Sth Street Between Irving Avenue & Jackson Avenue. Soil Desai tion .5" Bituminous Depth. 7.5" Aggregate Base. Sample # SP-SM POORLY GRADED SAND wI SILT fine to medium grained, la trace of GRAVEL, dark brown - Fill. BOring complete to 4 feet. No water was encountered during drilling. LOG OF SOIL BORING BORING #:B-10 END 71ME: 1:22 ME77-IOD: 31/4" 1.0. Hollow Stem Auger CREW: ED/NF ELEVA710N: NOT AVAILABLE N Water Value Table 12 Notes I INDEPENDENT TESTING TECHNOLOGIES, INC. PROJECT: 06-S07ACIlY OF ELK RIVER DATE: 10-31-06 I. IRVING AVENUE AREA . START 77ME: 1:40 2007 RECONSTRUCTION PROJECTS ELK RIVER, MINNESOTA I LOCA lION: Intersection of Gates Avenue & 7th Avenue. LOG OF SOIL BORING BORING #: B-11 ENDfiME;-2:00--. METHOD: 31/4" 1.0. Hollow Stem Auger CREW: EO/NF ELEVA770N: NOT AVAILABLE Pa e 1 of 1 N Water Value Table Sample # Notes NMC = 4.5% % < #200 = 2.1% 6 OORl Y GRADED SAND, fine grained, brown. 7 5 Changes to fine to medium grained w/a trace of RAVEL at 9 feet. 12 Boring complete to 11.5 feet. No water was encountered during drilling. I INDEPENDENT TESTING TECHNOLOGIES, INC. PROJECT: 06-507ACITYOF ELK RIVER DATE: 10-31-06 I IRVING AVENUE AREA . START71ME: 2:08 2007 RECONSTRUCTION PROJECTS ELK RIVER, MINNESOTA LOCA710N: 6th Street Between Irving Street & Gates Avenue. I hanges to fine to medium grained, w/a trace of RAVEL at 7 feet. BOring complete to 11.5 feet. No water was encountered dUring drilling. LOG OF SOIL BORING BORING #:B-12 END TIME' 2:26 METHOD: 31/401.0. Hollow Stem Auger CREW: ED/NF ELEVATION: NOT AVAILABLE Pa e 1 of 1 N Water Value Table Sample # 3 3 2 lS Notes I INDEPENDENT TESTING TECHNOLOGIES, INC. PROJECT: 06-S07A CITY OF ELK RIVER DATE: 11-1-06 I IRVING AVENUE AREA START 77ME: 2:40 2007 RECONSTRUCTION PROJECTS ELK RIVER, MINNESOTA LOCA 7TON: 5 1/2 St Between Holt Ave & Gates Ave I Sample # LOG OF SOIL BORING BORING #: B-13 END TIME: 2:47 METHOD: 31/4" 1.0. Hollow Stem Auger CREW: EO/NF ELEVATION: NOT AVAILABLE Pa e 1 of 1 N Water Value Table 4 Notes I INDEPENDENT TESTING TECHNOLOGIES, INC. PROJECT: 06-507 A CITY OF ELK RIVER IRVING AVENUE AREA I 2007 RECONSTRUCTION PROJECTS ELK RIVER, MINNESOTA LOCA lION: Holt Avenue at 5th Street I Sample # LOG OF SOIL BORING DATE: 11-1-06 BORING #:B-14 START7IME:l1:30 END 7JME'11:38 METHOD: 31/4" 1.0. Hollow Stem Auger CREW: EO/NF ELEVA7JON: NOT AVAILABLE N Warer Value Table Notes 15 I INDEPENDENT TESTING TECHNOLOGIES, INC. PROJECT: 06-507 A CITY OF ELK RIVER IRVING AVENUE AREA I 2007 RECONSTRUCTION PROJECTS ELK RIVER, MINNESOTA LOCATION: Gate Avenue North of 5th Street I Sample # LOG OF SOIL BORING DATE: 11-1-06 BORING #:8-15 START TIME' 2:55 END 77ME: 3:01 METHOD: 31/4" 1.0. Hollow Stem Auger CREW: EO/NF ELEVATION: NOT AVAILABLE N Water Value Table Notes 3 I I I I I I I I I I I I I I I I I I I XXIII. APPENDIX B -INFORMATIONAL MEETING A-2 I I I I I I I I I I I I I I I I I I I CITY OF ELK RIVER INFORMATIONAL MEETING :MINUTES IRVING AVENUE AREA ELK RIVER CITY HALL THURSDAY, DECEMBER 7, 2006 6:00 PM. 1. Attendees See Attached Sign-up Sheet 2. Presentation Gty Engineer T eny Maurer went through the attached PowerPoint presentation. He indicated that the project being discussed this evening is the reconstruction of Irving Avenue and the adjacent roads east and west. Also included is the milling and overlay, along with concrete curb repair, in the Holt Avenue, Gates Avenue and 8th Street area south of School Street. Finally, the alley paving will be discussed. . 3. Questions and Answers After the presentation was complete, the informational meeting was open to questions. The following is a S1im.IIiaiy of the questions. asked and the answers given: Q: Will there be a say or a-vote for the residents on the sidewalk issue? A; Testimony can be given to the City Council at the public hearing regarding the sidewalks. . The Gty Council will be the ones ultimately deciding on where sidewalks are constructed. Q: How far into the yard will the sidewalk go? A; All sidewalk construction will be kept within the right of way. Where possible, a 5-6 ft. wide boulevard for lights, hydrants, signs and snow storage would be provided with the sidewalk behind the boulevard area. Q: Who is responsible for any tree removal? - ~ ~ - . A; Any trees that need to be removed would be done under the project. Q: Why is the northerly area being considered for only a mill and overlay? A; Because the pavement condition is much better in that area and it already has a banier style curb and gutter which only needs to be repaired. Q: What would be the impact on the storm sewer outlet due to the storm sewer improvements and why can't the Irving Avenue area only have a mill and overlay? A; If you look at the pavement condition, the Irving Avenue area is much more distressed, which would indicate that it is not able to accept an overlay. The pavement condition also indicates that in areas the base is failed and needs to be I I I I I I I I I I I I I I I I I I I Irving Avenue Area Informational Meeting December 7, 2006 A: Q: A: A: Q: A: Q: Page 2 reconstructed also. The curb and gutter not only finishes the product, but provides a conduit for storm drainage to the catch basin and into the pipe system. The curb and gutter is an integral part of an urban street section. Q: Will there be significant changes to the street grades? A: We don't anticipate any major changes in the street grade, however, the streets will likely be dropped slightly overall to allow room for the six-inch barrier curb at the edges. - Q: Will the contractor be willing to do private driveway work? A: That is a question we will pose to the contractor once we have the low bid. Many contractors are willing to do private driveway work. Some are not. The newsletter that we send out before the project starts will give you the answer to that question. If the contractor is willing to do that work. we will provide a contact to get a quote. If you want to get a quote for driveway work, our inspector will work with you to determine how much of your driveway will be replaced at the project cost. Then you can get a quote for the remainder of the work from the contractor. The City will help facilitate the contractor and property owner getting togetherrbut the City will not be party to any private driveway work contract. Q: Is the project a done deal at this time? A: The project is not a done deal until the Council approves the project and authorizes the award of the contract to the contractor. Q: When trees are removed, will they be replaced? ~ -. . It has been the City's policy to try to minimize the removal of any mature trees in the boulevard area. however, when it is necessary to remove vegetation within the public right-of-way, it has been the City's policy not to replace it. Are the plans to install additional catch basins? Yes, and the exhibit from the PowerPoint was presented again. Q: Will the driveways be replaced with the kind of material that a homeowner has, either concrete or bituminous? Yes, we will replace bituminous by making a saw cut butt joint and concrete will be replaced with concrete. We will attempt to go back to the joint, however, if there are large concrete panels, it may be necessary to cut them and create a new joint. -- - - . . - Will sidewalk go around trees? Wherever it is possible, the sidewalk will be moved to save trees. How will the project affect the school (this was asked by a representative of St. Andrew's Schoo~. I I I I I I I I I I I I I I I I I I I Irving Avenue Area Informational Meeting December 7,2006 _H _ _dd Page 3 A; It was our intent to make direct contact with St. Andrew's after this meeting. If you would like to leave your name and contact information, we would be happy to meet with you to discuss timing of construction and also, needs adjacent to the school property;- -------- ---.-- __u_ ----- _u___._ .-------- ---- - ------ --.- -.-.------- - Q: Why are the construction costs not covered entirely by city taxes? A:. The City Council has considered this funding option, but decided that each property should be assessed at the time their street is reconstructed. If it was paid through a general tax on the city as a whole, you would never stop paying for street construction, although you may be paying for streets that you never drive on. Q: Would the assessment area be expanded to include areas that actually drive on Irving Avenue? A; No, the assessments are tied directly to the increase in property value. It would be impossible to provide proof that property values have increased when the street in front of the property assessed is not reconstructed. Q: There was a previous assessment approximately 20-25 years ago. -Why are we be~g assessed again? A; That was an area-wide storm sewer assessment for a trunk storm sewer improvement that was not a street assessment. The two assessments are for different types of improvements. Q: Why does the project stop at 4th Street and not go further down to 3rd Street and Railroad Drive? A; The City Community Development Department is currently working with a Task Force on redevelopment plans for this area north of Highway 10. It was determined that it did not make sense to look at reconstructing the streets in that area until the planning process is completed to determine what the long term vision is for that area. . - - - - .- Q: Can assessment payoff length be increased? A; It is not likely that the Finance Department would support extending these assessments beyond a 10-year period. If we did extend it beyond a 10-year period, the amount of interest paid through the life of the assessment would increase drastically. Q: Will we be assessed for any of the watermain improvements? -. - - - - - -- A:. No, the watermain improvements will be funded by the Elk River Municipal Utilities. Q: Will a drop in the project cost reduce the assessment if sidewalks are eliminated, or if the bid comes in better than expected? A; No. The assessment will be on a unit cost basis with the City picking up the remainder. The estimated numbers I have shown this evening predict that the City I I I I I I I I I I I I I I I I I I I Irving Avenue Area Informational Meeting December-7,-2006 Page 4 will be paying approximately 70 percent. H the project comes lower than that, the City will get closer to its goal of assessing 33 percent and funding 67 percent. Q: Why isn't it proposed to replace the 4-inch watermain in front of St. Andrew's School? A:. We will pose that question to the Elk River Municipal Utilities. They have given us the input on the water improvements presented this evening. Q: Sidewalks are not necessary within the looped streets east of Irving Avenue? A:. We will present that comment for Council consideration. Q: Will speed bumps be considered? A:. The Council has authorized a committee of staff members to work on a traffic- calming policy which will be presented back to the Council sometime after the first of the year. Any approved traffic calming devices will be considered in the final design. Q: Are school buses causing the wear on the road? A:. School buses do cause more wear and tear on the roads than the normal passenger car, however; the condition of the toads in this area would be considered already failed. Q: What is the life expectancy of the newly constnlcted road? A; The street will not be reconstructed in anyone's lifetime in this audience. During the life of the street, there will be a need to do minor maintenance such as sealcoating and crack sealing, and some points during the life of the road, possibly 20-25 years out, it may need to be milled and a new top surface put on. Q: Will the property values increase with the assessment of the project? A:. We have informed by Sherburne County Assessor's office that there is no direct correlation between a property receiving an assessment and an increase in the property value. Q: Can driveways be made wider? A:. Yes, but we will not violate any of the City ordinances relative to the overall width or setbacks from property lines. Also, if your driveway is 15 feet wide and you ask for a 30~foot Wide opening, we will require some kind of documentation that you actually intend to wide your driveway so that we don't end up with a wider driveway opening that is never actually used. Q: Will access to garage/shed from a comer lot on the side street be continued after the barrier curb is placed? A:. Yes, if access is currently being used from both streets on a comer lot, we will provide driveway access at both locations. I I I I I I I I I I I I I I I I I I I Irving Avenue Area Informational Meeting December 7 ,2006 .. _ _ __ _ __ d - - Page 5 Q: Will the school be assessed.? A: Yes, the school has been assessed for previous projects, however, with institutional, commercial and industrial property, the Council always looks at them on a case-by- case basis. Q: Will the streets be accessible during construction? A: Yes, you should have reasonable driveway access at the end of each workday, however, when concrete curb and gutter and! or sidewalk is poured, there will be a restriction keeping cars out of driveways for 3-5 days. 4. Adiournment There being no more questions, this informational meeting was adjourned at 7:40 p.m. Submitted by, Terry J. Maurer Gty Engineer I I I I PROJECT NAME: OWNER: I - D-ATE OF MEETING: Name Print -. Info!'-matlonaL Meeting Irvinq Avenue Area Street Rehabilitation City of Elk River Thursday December 7 , 2006 I I Den I I 'V1LLV'c..h ,...., r:::- j 1 .r / " . r". 'VO<J1 'f _ : 1./ ~..y~~ ~--- ,.-.. t ' I .____ I . ! 'V -z. ""'-1 V- 6 \./._./~ ? 0' '7 I I I I I I /..1lt-' I ' ., I ) ~4 tkYvo )~U(j (.... ) ~ 7\ I ()e(:.~ ic1 IS~ c& 'Khc,ncl;tJa.+r-czS I I Slgnffi MaHin Address/Zip Y t.l-.-. / ,- / /-6 /~6/ bc{-g- G:, 'f-C-;; ~ y- /n/ ...~-/"[.. - ! y i/-, -r[..r/ o -z...- / ,-r- . I ! , ____ ""_. j-r1 C::;4' '-' ( Tf1Sf . -(;;J{ & -- 56!? ?~/. ?A S ~I /! . I I t' -;7.A /' < .11 \ IGV '.J.... V\.!, V\.. 7'- 'I v.e... 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