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HomeMy WebLinkAbout05(E) - Accept Feasibility Report and Schedule Public Hearing - Fish Point Road Phase 1 Improvement Project (CP TRN20-000001) Report FEASIBILITY REPORT FISH POINT ROAD (CSAH 44 TO TH 13) RECONSTRUCTION PROJECT CITY OF PRIOR LAKE | SCOTT COUNTY, MINNESOTA SEPTEMBER 21, 2020 Prepared for: City of Prior Lake 4646 Dakota Street SE Prior Lake, MN 55372 CITY PROJECT NO. TRN#20-000001 WSB PROJECT NO. 013977-000 FEASIBILITY REPORT Feasibility Report Fish Point Road (CSAH 44 to TH 13) Reconstruction Project TRN#20-000001 City of Prior Lake WSB Project No. R-13977-000 FISH POINT ROAD (CSAH 44 TO TH 13) RECONSTRUCTION PROJECT TRN#20-000001 FOR THE CITY OF PRIOR LAKE, MN September 21, 2020 Prepared By: 701 XENIA AVENUE S | SUITE 300 | MINNEAPOLIS, MN | 55416 | 763.541.4800 | WSBENG.COM September 21, 2020 Honorable Mayor and City Council City of Prior Lake 4545 Dakota Street SE Prior Lake, MN 55372 Re: Feasibility Report Fish Point Road (CSAH 44 to TH 13) Reconstruction Project City of Prior Lake Project No. TRN#20-000001 WSB Project No. R-013977-000 Dear Honorable Mayor and City Council Members: Transmitted herewith for your review is a feasibility report which addresses improvements associated with the Fish Point Road (CSAH 44 to TH 13) Reconstruction Project. We would be happy to discuss this report with you at your convenience. Please contact me at 952.737.4675 if you have any questions or concerns. Sincerely, WSB Monica Heil, PE Project Manager Attachment CERTIFICATION Feasibility Report Fish Point Road (CSAH 44 to TH 13) Reconstruction Project TRN#20-000001 City of Prior Lake WSB Project No. R-13977-000 I hereby certify that this plan, specification, or report was prepared by me or under my direct supervision and that I am a duly licensed professional engineer under the laws of the State of Minnesota. Monica Heil, PE Date: September 21, 2020 Lic. No. 47497 Quality Control Review Completed By: Adam Gadbois, PE Date: September 21, 2020 Lic. No. 54787 TABLE OF CONTENTS Feasibility Report Fish Point Road (CSAH 44 to TH 13) Reconstruction Project TRN#20-000001 City of Prior Lake WSB Project No. R-13977-000 TITLE SHEET LETTER OF TRANSMITTAL CERTIFICATION SHEET TABLE OF CONTENTS 1. EXECUTIVE SUMMARY ................................................................................................. 1 2. INTRODUCTION ............................................................................................................. 2 2.1 Authorization ........................................................................................................ 2 2.2 Scope .................................................................................................................. 2 2.3 Data Available ...................................................................................................... 2 2.4 Background .......................................................................................................... 2 3. EXISTING CONDITIONS ................................................................................................ 4 3.1 Surface ................................................................................................................ 4 3.2 Public Utilities ...................................................................................................... 4 3.2.1 Storm Sewer and Drainage ...................................................................... 4 3.2.2 Sanitary Sewer ......................................................................................... 5 3.2.3 Watermain ................................................................................................ 5 3.3 Street Lighting ...................................................................................................... 5 3.4 Sidewalks ............................................................................................................ 5 3.5 Private Utilities ..................................................................................................... 5 4. PROPOSED IMPROVEMENTS ...................................................................................... 6 4.1 Streets ................................................................................................................. 6 4.1.1 Right-Of-Way ........................................................................................... 6 4.1.2 Retaining Walls ........................................................................................ 6 4.2 Public Utilities ...................................................................................................... 6 4.2.1 Storm Sewer and Drainage ...................................................................... 7 4.2.2 Sanitary Sewer ......................................................................................... 7 4.2.3 Watermain ................................................................................................ 7 4.3 Street Lighting ...................................................................................................... 7 4.4 Sidewalks ............................................................................................................ 8 4.5 Intersection Improvements ................................................................................... 8 4.6 Permits/Approvals ................................................................................................ 9 4.7 Construction Access/Staging ............................................................................... 9 4.8 Public Involvement ............................................................................................... 9 5. FINANCING .................................................................................................................. 10 5.1 Opinion of Probable Cost ................................................................................... 10 5.2 Funding .............................................................................................................. 11 5.3 Preliminary Assessment Roll ............................................................................. 11 6. PROJECT SCHEDULE ................................................................................................. 13 7. FEASIBILITY AND RECOMMENDATION .................................................................... 14 Appendix A Figure 1 – Project Location Map Typical Sections TABLE OF CONTENTS (continued) Feasibility Report Fish Point Road (CSAH 44 to TH 13) Reconstruction Project TRN#20-000001 City of Prior Lake WSB Project No. R-13977-000 Appendix B Geotechnical Report Appendix C Phase 1 Opinion of Probable Cost Phase 2 Opinion of Probable Cost Appendix D Assessment Map Phase 1 Preliminary Assessment Roll Phase 2 Preliminary Assessment Roll Appendix E January 23, 2020 Neighborhood Meeting Minutes August 5, 2020 On-Site Property Owner Meeting Notes Feasibility Report Fish Point Road (CSAH 44 to TH 13) Reconstruction Project TRN#20-000001 City of Prior Lake WSB Project No. R-13977-000 1 1. EXECUTIVE SUMMARY The Fish Point Road (CSAH 44 to TH 13) Reconstruction Project includes the reconstruction of Fish Point Road SE from 160th Street SE (CSAH 44) to MnDOT Trunk Highway 13 (TH 13). The project also includes the reconstruction of the local streets that access Fish Point Road SE in this area. These streets include: Hidden Oaks Circle SE, Timberview Street SE, Millers Circle SE, Glory Circle SE, Timber Trail SE, and Omega Trail SE. All streets within the project area currently exist as urban street sections. The reconstruction of the streets and the utilities is identified in the City’s Capital Improvement Plan (CIP) for construction in 2021. The project is proposed to be constructed in two phases, due to funding constraints relating to other non-programmed street improvement needs within the downtown area. The local streets are proposed for reconstruction in 2021, and Fish Point Road is proposed for recons truction in 2023. Roadway reconstruction, consisting of removal of the existing bituminous pavement, subgrade correction, replacement of concrete curb and gutter, and new bituminous pavement is proposed for all streets within the project area, totaling approximately 7,230 feet (1.37 miles). The sidewalk along Fish Point Road SE is also proposed to be replaced with this project. Existing public retaining walls within the project area will be replaced as necessary to construct the public improvements. A map showing the project location can be found on Figure 1 in Appendix A. Replacing portions of the City’s deteriorating utility infrastructure in conjunction with the proposed street improvements provides an opportunity to minimize the replacement costs and traffic disruptions associated with the work. Proposed utility improvements include the following: ▪ Installation of new watermain ▪ Replacement of hydrants, gate valves, and utility services as necessary ▪ Repair or installation of storm sewer to improve overall drainage and meet State Aid design standards along Fish Point Road ▪ Lining of PVC sanitary sewer pipe and replacement of VCP sanitary sewer pipe ▪ Spot sanitary sewer repairs as necessary ▪ Replacement of public retaining walls as necessary to construct the public improvements ▪ Intersection improvements at Fish Point Road and TH 13 to facilitate the construction of dedicated turn lanes for northbound and southbound traffic onto TH 13 from northbound Fish Point Road, and a dedicated through lane for southbound traffic onto Fish Point Road from TH 13 The proposed improvement cost for reconstructing the local streets in 2021 is estimated to be $4,391,245.06, and the proposed improvement cost for reconstructing Fish Point Road in 2023 is estimated to be $6,325,998.49. These estimates include a 10% contingency and 28% indirect costs, and the 2023 construction estimate includes an assumed 2.6% inflation rate. Funding for the project will be provided through assessments to benefiting properties, tax levy , State Aid funds, and various City funds. Phase 1 of the proposed project is scheduled to begin construction during the spring of 20 21, with local street reconstruction being substantially complete by September 2021. The final wear course of bituminous pavement on the local streets will also be placed in the fall of 2021. Reconstruction of Fish Point Road is scheduled to begin in the spring of 2023, with subs tantial completion scheduled for September 2023. The final wear course will also be in the fall of 2023. This project is feasible, necessary, and cost-effective from an engineering standpoint and should be constructed as proposed herein. Feasibility Report Fish Point Road (CSAH 44 to TH 13) Reconstruction Project TRN#20-000001 City of Prior Lake WSB Project No. R-13977-000 2 2. INTRODUCTION 2.1 Authorization On August 19, 2019, the City of Prior Lake City Council authorized the preparation of a feasibility report for the Fish Point Road (CSAH 44 to TH 13) Reconstruction Project in Resolution 19-095. This project has been designated City Project No. TRN 20-000001. 2.2 Scope This report investigates the feasibility of proposed improvements to street and utilities identified within the City’s Capital Improvement Plan. The streets proposed for the Fish Point Road (CSAH 44 to TH 13) Reconstruction Project were initially considered because of existing pavement conditions and known utility failures. The project includes the following streets . ▪ Fish Point Road SE from 160th Street SE (CSAH 44) to Trunk Highway 13 (TH 13) ▪ Hidden Oaks Circle SE from Fish Point Road SE to the cul-de-sac ▪ Timberview Street SE from Hidden Oaks Circle SE to the cul-de-sac ▪ Millers Circle SE from Fish Point Road SE to the cul-de-sac ▪ Glory Circle SE from Fish Point Road SE to the cul-de-sac ▪ Timber Trail SE from Fish Point Road SE to the terminus ▪ Omega Trail SE from Fish Point Road SE to the cul-de-sac The project area is shown in Figure 1 of Appendix A. Improvements within this report include roadway reconstruction, public retaining wall replacement, concrete sidewalk replacement, sanitary sewer lining improvements, watermain replacement, storm sewer improvements and intersection improvements at Fish Point Road and TH 13. 2.3 Data Available Information and materials used in the preparation of this report include the following: ▪ City of Prior Lake Capital Improvement Plan ▪ City of Prior Lake Assessment Policy ▪ City of Prior Lake Property Index Records ▪ City of Prior Lake Topography Maps ▪ City of Prior Lake Sanitary Sewer Televising Reports ▪ City of Prior Lake Utility Maintenance Logs ▪ City of Prior Lake Pavement and Utility Overall Condition Index Ratings ▪ Geotechnical Report prepared by WSB and completed in March 2020 ▪ Special Benefit Consultation prepared by Patchin Messner Valuation Counselors, dated July 31, 2020 ▪ Field Observations of the Area and Field Topography Surveys 2.4 Background The City of Prior Lake has developed a Capital Improvement Plan to maintain infrastructure within the City. The proposed project area has been identified as a potential street reconstruction project location, where the streets are proposed to be reconstructed and issues with utilities addressed. The City of Prior Lake utilizes a Pavement Management Program to rate the condition of the City’s streets. The pavement rating, known as Overall Condition Index (OCI), is determined based on the amount of pavement deterioration that is visually evident. The street OCI is a number between 0-100, with 100 indicating streets that are in the best condition or are newly paved and 0 being the worst. Streets in need of a mill and overlay generally have an OCI of 45-65 and streets with an OCI between 35-45 Feasibility Report Fish Point Road (CSAH 44 to TH 13) Reconstruction Project TRN#20-000001 City of Prior Lake WSB Project No. R-13977-000 3 usually require a full depth reclamation. When the OCI reaches a range of 0 -35 or when utility repairs are needed, the street usually requires a full reconstruction. A detailed account of the OCI values for the project area is shown in Table 1. Feasibility Report Fish Point Road (CSAH 44 to TH 13) Reconstruction Project TRN#20-000001 City of Prior Lake WSB Project No. R-13977-000 4 3. EXISTING CONDITIONS 3.1 Surface The pavement within the proposed improvement area is aging and exhibiting alligator cracking, edge cracking, transverse cracking, longitudinal cracking, stripping (that has since been patched) and some rutting. The bituminous pavement is becoming more brittle due to age and is showing signs of accelerated deterioration. The concrete curb and gutter is in overall poor condition, with locations of cracking and settling. The northern portion of Fish Point Road SE includes medians and turn lanes onto Omega Trail and Trunk Highway 13. The medians are in overall poor condition and show cracking in both the curb and interior concrete. A summary of existing conditions by street is provided in Table 1. Table 1 Fish Point Road (CSAH 44 to TH 13) Reconstruction Project Summary of Existing Conditions Street Name Location ROW (feet) Length (feet) Width* (feet) Existing OCI Fish Point Road SE CSAH 44 to Glory Circle SE 66 2,910 32 - 44 22 Fish Point Road SE Glory Circle SE to TH 13 60 550 32-52** 22 Hidden Oaks Circle SE Fish Point Road SE to cul-de-sac 60 715 30 22 Timberview Street SE Fish Point Road SE to cul-de-sac 60 400 30 22 Millers Circle SE Fish Point Road SE to cul-de-sac 60 350 26 25 Glory Circle SE Fish Point Road SE to cul-de-sac 50 395 30 25 Timber Trail SE Fish Point Road SE to dead end 50 1,110 32 22 Omega Trail SE Fish Point Road SE to cul-de-sac 50 800 24 - 32 25 *Back of Curb to Back of Curb street width **Layout includes medians and turn lanes A geotechnical report was completed by WSB in March of 2020. A total of 18 soil borings were taken at various locations throughout the project area. The borings indicate bituminous pavement thicknesses from 3 inches to 10 inches. Underlying the pavement was approximately 4.5 inches to 24 inches of aggregate base. The borings showed lean clay and some sand material below the aggregate. The full report can be found in Appendix B. 3.2 Public Utilities The City of Prior Lake owns, operates and maintains storm sewer, sanitary sewer, and watermain within the project area. 3.2.1 Storm Sewer and Drainage Existing and aging storm sewer infrastructure exists within the project area. The storm sewer was installed between 1980 and 1986. Stormwater runoff in the project area is collected into a storm sewer system and is generally discharged to stormwater basins and wetlands located east of Fish Feasibility Report Fish Point Road (CSAH 44 to TH 13) Reconstruction Project TRN#20-000001 City of Prior Lake WSB Project No. R-13977-000 5 Point Road. Stormwater from the northern portion of Fish Point Road and Omega Trail is conveyed by storm sewer across TH 13 and into Lower Prior Lake. Based on field observations, the existing storm sewer is fair-to-poor condition and will need to be upgraded to properly collect and convey stormwater for the proposed roadway and pedestrian improvements. Many of the outfalls from the project area will likely be able to be connected to, in effort to utilize some of the existing system and avoid private property impacts. The project is located entirely within the Prior Lake Spring Lake Watershed District (PLSLWD). 3.2.2 Sanitary Sewer The sanitary sewer system within the project area was constructed between 1972 and 1984 and consists primarily of 8-inch vitrified clay pipe (VCP) and 8-inch polyvinyl chloride pipe (PVC). The sanitary sewer on Fish Point Road SE between Millers Circle SE and Trunk Highway 13 is 9-inch VCP. The sanitary sewer for the project area flows north towards the sanitary sewer at Trunk Highway 13, which then flows south along TH 13 via City-owned trunk sanitary sewer facilities to CSAH 21, where the system then connects to the MCES gravity interceptor system that flows west and north to exit the City. The existing sanitary sewer pipe and manholes are in fair condition. 3.2.3 Watermain The watermain system within the project area was installed between 1972 and 1986. The existing watermain on Fish Point Road SE consists of 8-inch ductile iron pipe and 8-inch cast iron pipe. The existing watermain on Hidden Oaks Circle SE and Timberview Street SE consists of 8-inch cast iron pipe. The existing watermain throughout the rest of the project in 6-inch ductile iron pipe. 3.3 Street Lighting Street lights on utility poles exist on Fish Point Road SE from CSAH 44 to Huron Street SE. Decorative street lamps exist on Hidden Oaks Circle SE and Timberview Street SE. 3.4 Sidewalks Between CSAH 44 and Huron Street SE, 5-foot concrete sidewalks with boulevards exists on both the west and east sides of Fish Point Road SE. Between Huron Street SE and Trunk Highway 13, the boulevard between the existing 5-foot concrete sidewalk and the face of curb varies from 0-feet to 5-feet in width. In some locations, the sidewalk extends from the back of curb to the face of existing retaining walls. 3.5 Private Utilities Private utilities that have facilities in or near the project area will be notified during the final design phase of the project and will be requested to coordinate any necessary repairs and replacements as needed at their cost. Private utility companies that may have facilities, both underground and aerial, within the project area include the following: ▪ Center Point Energy (Gas) ▪ CenturyLink (Telephone) ▪ Mediacom (Fiber Optic/Cable) ▪ Minnesota Department of Transportation (Signals) ▪ Scott Rice/Integra Telephone (Telephone) ▪ Xcel Energy (Electric) ▪ Minnesota Valley Electric (Electric) ▪ Zayo (Telecom) Feasibility Report Fish Point Road (CSAH 44 to TH 13) Reconstruction Project TRN#20-000001 City of Prior Lake WSB Project No. R-13977-000 6 4. PROPOSED IMPROVEMENTS 4.1 Streets Fish Point Road SE is proposed to be reconstructed with a 12-inch sand section, a 12-inch aggregate section, 6 inches of bituminous pavement, and barrier style concrete curb and gutter. Geotextile fabric will be used to separate the existing subgrade and the new street section. Between CSAH 44 and Huron Street SE the roadway will have 21.5-foot wide traffic lanes to match the existing roadway section that accommodates on-street parking adjacent to the two middle schools. Between Huron Street SE and Trunk Highway 13, the roadway will have 14-foot wide traffic lanes with no on-street parking. The typical sections for these designs are shown in Figures 2 and 3 in Appendix A. For all other streets in the project area, the roadways will be reconstructed with a 24-inch sand section, a 6-inch aggregate section, 4 inches of bituminous pavement, and barrier style concrete curb and gutter. The roadways will be constructed to have 14-foot wide traffic lanes. The typical section for the proposed local street design is shown in Figure 4 in Appendix A. The street section designs are based on soil conditions found from the soil borings (see Appendix B), the traffic volumes, previous project experience in the area, and City standards. Within the project, the reconstructed roadway grades will be designed in such a way to minimize impacts to existing neighborhood features such as trees, landscaping, and driveways. Minor modifications to the existing alignment and roadway profile for Fish Point Road will be made to meet current State Aid design requirements. All impacted public retaining walls will be reconstructed based on the recommendations provided in the Geotechnical Report (see Appendix B). Drain tile will be installed with all new street sections within the project area to provide adequate drainage for the roadway subgrade and extend the useful life of the roadway section. Permanent driver feedback signs (DFB) are proposed to be installed along Fish Point Road as a part of the project. In the past, City Staff has installed temporary DFBs have been installed along Fish Point Road in response to resident concerns regarding vehicle speeds within the corridor. As a part of the improvement project, permanent DFBs will be installed, similar to what was installed along Franklin Trail south of CSAH 44 (160th). 4.1.1 Right-Of-Way Right-of-way needs, if any, will be identified during the final design process. Temporary construction easements or waivers of trespass may be required for grading purposes to provide positive slopes to the curb and to address issues with existing retaining walls. Temporary construction easements may also be necessary along the lot lines in which runoff outlets. 4.1.2 Retaining Walls Public retaining walls within the project area proposed to be replaced when impacted by either street or utility construction. Precast Modular Block Walls (PMBWs) will be installed and will match walls installed with other recent public improvement projects. It is anticipated that there will be impacts to existing vegetation associated with wall excavation and construction. Fencing will be installed atop of retaining walls greater than or equal to four-feet in height to provide the necessary fall protection. 4.2 Public Utilities The City of Prior Lake owns, operates and maintains storm sewer, sanitary sewer, and watermain within the project area. The improvements to these utilities are summarized below. Feasibility Report Fish Point Road (CSAH 44 to TH 13) Reconstruction Project TRN#20-000001 City of Prior Lake WSB Project No. R-13977-000 7 4.2.1 Storm Sewer and Drainage Reconstruction of the streets provides the opportunity to improve the drainage within the project area through the installation of new or additional storm sewer facilities. Proposed drainage improvements include installation of new storm sewer collection and conveyance systems and reconstructing or replacing existing catch basins where the infrastructure is in acceptable condition and meets the needs of the proposed improvements. Stormwater management improvements will be implemented to achieve the requirements of the Prior Lake Spring Lake Watershed District (PLSLWD) as well as the NPDES and MS4 requirements of the Minnesota Pollution Control Agency (MPCA). Rate control will be provided to ensure proposed discharge rates are less than existing condition or that downstream facilities have the required capacity. Volume control and water quality treatment will be provided to meet the needs of the project. Stormwater credits from previous public improvements projects will be used as appropriate and available to meet the volume control and water quality treatment requirements for this project. A decrease in impervious surface would achieve the requirements of the MS4 permit. If this does not occur, additional stormwater treatment may need to be incorporated. Temporary erosion and sediment control devices will be utilized during construction in accordance with pertinent MPCA NPDES General Construction permit requirements. The costs for the proposed storm sewer improvements are included in Appendix C. 4.2.2 Sanitary Sewer The proposed sanitary sewer improvements consist replacing a majority of the VCP sewer pipe and lining the existing PVC sewer pipe within the project area. Spot repairs will be made to the PVC sewer pipe in locations where lining the existing sewer pipe is not feasible due to sags or joint separation. Sanitary sewer that exists in easements between properties are proposed to be lined to limit impacts to trees, landscaping, and other private improvements in these areas. It is the City of Prior Lake’s practice to replace all sanitary sewer services to the right-of-way with the road reconstruction projects. Parcels that may be subdivided in the future will receive additional services based on the size of the lot. The costs for sanitary replacement are included in Appendix C. 4.2.3 Watermain New 8-inch PVC watermain is proposed along all reconstructed roadways. Full watermain replacement including replacement of all water services and curb boxes within the project area are proposed as part of the improvements. Temporary water services will need to be provided to maintain service to the affected properties while the main is replaced. Hydrants, valves, and services will also be replaced in these areas as needed. All parcels will receive a new service to the right-of-way. Parcels that may be subdivided in the future will receive additional services based on the size of the lot. The costs for watermain replacement are included in Appendix C. 4.3 Street Lighting The streetlights that exist along Fish Point Road SE are limited to that portion of the road between CSAH 44 and Huron Street SE and the intersections at Hidden Oaks Circles SE and Trunk Highway 13. The replacement of existing streetlights and the addition of new streetlights, especially at intersections, has been standard practice with past improvements projects within the City. Street lighting is proposed to be installed along all streets in the project area according to the City standard spacing. The proposed streetlights for the project will be a combination of rectilinear style and decorative traditional lights, both of which will have LED style bulbs. Streetlights will be owned and maintained by the electric service providers for this area (Xcel Energy and Minnesota Valley Electric). Feasibility Report Fish Point Road (CSAH 44 to TH 13) Reconstruction Project TRN#20-000001 City of Prior Lake WSB Project No. R-13977-000 8 4.4 Sidewalks The replacement of the 5-foot wide concrete sidewalk is proposed along Fish Point Road SE. From CSAH 44 to Huron Street SE, a 5.5-foot boulevard is proposed between the face of the curb and the edge of the sidewalk. Between Huron Street SE and Trunk Highway 13, the boulevard width will vary between being 0.5-feet wide and 5-feet wide, such that the sidewalk will be reinstalled in a similar location to preconstruction conditions where adjacent retaining walls and right-of-way locations limit the creation of boulevard spaces between the roadway and the sidewalk. Pedestrian curb ramps meeting current ADA standards will be constructed at sidewalk connections with the residential streets. For the purposes of this report, the costs associated with installing a new concrete sidewalk along the west side of Fish Point Road from Huron Street to TH 13 have been included in the total project costs. Additional right-of-way, driveway impacts and retaining wall needs associated with the construction of such a sidewalk will be evaluated with final design of the project to determine if sidewalk extension will be included in the final scope of work. 4.5 Intersection Improvements The medians and turn lanes at the Fish Point Road SE and Timber Trail SE/Omega Trail SE and at Fish Point Road SE and Trunk Highway 13 are proposed to be removed and/or reconfigured with this project. The median south of Omega Trail SE is proposed to be eliminated and replaced with pavement markings, while the northern median will be relocated to allow for the construction of a dedicated southbound left turn lane onto Timber Trail SE, as well as dedicated north and southbound turn lanes onto TH 13 from northbound Fish Point Road. See Figure 4.5.1 on the next page. Figure 4.5.1 Feasibility Report Fish Point Road (CSAH 44 to TH 13) Reconstruction Project TRN#20-000001 City of Prior Lake WSB Project No. R-13977-000 9 4.6 Permits/Approvals The anticipated permits and approvals, and the respective regulatory agencies, are listed below: ▪ Minnesota Pollution Control Agency (NPDES) ............................... Erosion/Storm Water Permit ▪ Minnesota Department of Transportation (TH 13) ...................................... Right-of-Way Permit ▪ Scott County (CSAH 44) ............................................................................. Right-of-Way Permit ▪ Minnesota Department of Health ............................................... Extension of Watermain Permit ▪ Prior Lake Spring Lake Watershed District……………..Stormwater and Erosion Control Permit In addition to a Right-of-Way Permit, the City will work with MnDOT to obtain the necessary approvals associated with the intersection improvements at Fish Point Road and TH 13, including the relocation of the existing signal arm to facilitate the construction of north and southbound turn lanes onto TH 13 from Fish Point Road. 4.7 Construction Access/Staging A detour for Fish Point Road SE will be necessary to keep non-local traffic from entering the project area and to maintain access to the middle school sites during construction. All streets in the project area will be closed to “Local Traffic Only” during construction. The neighborhood will experience times during utility and retaining wall construction and other work tasks where ingress and egress is restricted during the day. Alternative routes through the neighborhood may need to be utilized to access driveways. Access to driveways will be restricted during and after concrete curb and concrete driveway patches are poured. City Staff will work with ISD #719 to coordinate bus access and construction activities during the 2021 - 2022 and 2023-2024 school years. City Staff will also work with the school district to coordinate access to both middle schools during the summer months to ensure planned Community Education offerings at the middle school can continue, in addition to planned athletic club use of the middle school sites and Lakefront Music Fest Parking. It is anticipated that construction activities throughout the project area will be phased during the 2021 construction season. Additional details regarding phasing and detour plans will be developed with the final design of the project. 4.8 Public Involvement A public informational meeting for the proposed project was conducted by the City on January 23, 2020. Preliminary information was presented to attendees regarding the proposed improvements , funding sources, schedule, and impacts associated with the project. Minutes from the Question and Answer portion of the meeting are included in Appendix E of this report. A second public informational meeting was conducted by the City on August 19, 2020. This meeting was an “open-house” style and residents’ questions were answered, and input was gathered. On August 5, 2020, in-person meetings were scheduled and conducted with those residents who requested them. A summary of these meetings is included in Appendix E of this report. A project website, project email and project helpline number have all been established for this project to assist with on-going project communication: Project Website Project Email Project Helpline fishpointproject.com info@fishpointproject.com 952-737-4683 Feasibility Report Fish Point Road (CSAH 44 to TH 13) Reconstruction Project TRN#20-000001 City of Prior Lake WSB Project No. R-13977-000 10 5. FINANCING 5.1 Opinion of Probable Cost A detailed opinion of probable cost is included in Appendix C of this report. The opinion of probable cost separately analyzes probable costs for both the local streets proposed for reconstruction in 2021, and for Fish Point Road proposed for construction in 2023. The opinion of probable cost is based on projected construction costs for 2021 and 2023 and includes a 10% contingency and 28% indirect costs. The 2023 construction estimate includes an assumed 2.6% inflation rate. The indirect costs include engineering, legal, and administrative costs associated with the project. The p roject costs are summarized as follows: Table 2 2021 Construction – Local Streets Improvement Estimated Cost Street Improvements $2,080,945.92 Drainage Improvements $399,162.37 Sanitary Improvements $575,562.24 Watermain Improvements $876,508.16 Lighting Improvements $49,280.00 Retaining Wall Improvements $407,786.37 GRAND TOTAL $4,391,245.06 Table 3 2023 Construction - Fish Point Road (CSAH 44 to TH 13) Improvement Estimated Cost CSAH 44 to Huron Street SE Street Improvements $3,195,251.44 Drainage Improvements $564,112.29 Sanitary Improvements $337,667.18 Watermain Improvements $618,126.96 Lighting Improvements $51,893.25 Retaining Wall Improvements $1,246,367.54 TH 13/ Fish Point Road Intersection Improvements $129,445.89 Additional Sidewalk Improvements $183,133.95 GRAND TOTAL $6,325,998.49 Feasibility Report Fish Point Road (CSAH 44 to TH 13) Reconstruction Project TRN#20-000001 City of Prior Lake WSB Project No. R-13977-000 11 5.2 Funding The proposed funding for the improvements is a combination of funding from City funds and assessments to benefiting properties. The City’s funding is from State Aid funds, the tax levy general funds, utility funds, and water quality funds. The proposed amount for each funding source is identified below: Table 4 2021 Construction – Local Streets Funding Summary Funding Source Amount Assessments $562,320 Tax Levy $2,137,357.24 Water Utility Fund $876,508.16 Sewer Utility Fund $575,562.24 Stormwater/Water Quality Fund $239,497.42 GRAND TOTAL $4,391,245.06 *From Special Benefit Consultation Table 5 2023 Construction – Fish Point Road (CSAH 44 to TH 13) Funding Summary Funding Source Amount Assessments $415,300* State Aid Funds $4,642,324.51 Tax Levy $312,579.84 Water Utility Fund $618,126.96 Sewer Utility Fund $337,667.18 GRAND TOTAL $6,325,998.49 *From Special Benefit Consultation 5.3 Preliminary Assessment Roll Assessments will be levied to the benefiting properties as outlined in Minnesota Statute 429 and the City of Prior Lake’s Assessment Policy. A Special Benefit Consultation by Patchin Messner Valuation Counselors was prepared for this project. This report analyzes the probable special benefit to the abutting properties derived by the infrastructure improvements. The proposed assessment rolls for Phases 1 and 2 are included in Appendix D of this report, along with an assessment map identifying the benefiting properties. For Phase 1, Special Assessments to benefiting properties are proposed to fund 19.13% of the street improvements identified of the project, with the remaining 80.87% paid for with various City funds. For Phase 2, Special Assessments to benefiting properties are proposed to fund 10.90% of the street improvements identified of the project, with the remaining 89.10% paid for with various City funds and State Aid funds. Feasibility Report Fish Point Road (CSAH 44 to TH 13) Reconstruction Project TRN#20-000001 City of Prior Lake WSB Project No. R-13977-000 12 The Assessment Review Committee met on August 5th, 2020, and reviewed the front footage, lot area, and Residential Unit Density (RUD) assessment methods, as well as the Special Benefit Consultation Report. The Assessment Review Committee determined it was most appropriate to use the special benefit amounts determined in the Special Benefit Consultation. The special assessment amounts for each property are provided in the proposed assessment rolls in Appendix D. Feasibility Report Fish Point Road (CSAH 44 to TH 13) Reconstruction Project TRN#20-000001 City of Prior Lake WSB Project No. R-13977-000 13 6. PROJECT SCHEDULE The proposed schedule for the Project is as follows: Neighborhood Meeting #1 ...................................................................................... January 23, 2020 Neighborhood Meeting #2 ....................................................................................... August 19, 2020 Accept Feasibility Report/Set Public Hearing .................................................... September 21, 2020 Public Improvement Hearing for Phase 1 – Local Streets/Order Project ............... October 19, 2020 Approve Plans and Specifications/Authorize Ad for Bid ....................................... December 7, 2020 Open Bids ............................................................................................................... January 22, 2021 Accept Bids/Award Construction Contract ................................................................. February 2021 Assessment Hearing for Phase 1 – Local Streets ...........................................................March 2021 Begin Construction for Phase 1 – Local Streets ................................................................ April 2021 Final Completion for Phase 1 – Local Streets .............................................................. October 2021 Public Improvement Hearing for Phase 2 – Fish Point Road .............................................. Fall 2022 State Aid Submittal for Fish Point Road Improvements ...................................................... Fall 2022 Assessment Hearing for Phase 2 – Fish Point Road ..................................................... Spring 2023 Begin Construction for Phase 2 – Fish Point Road ........................................................ Spring 2023 Final Completion for Phase 2 – Fish Point Road ................................................................ Fall 2023 Feasibility Report Fish Point Road (CSAH 44 to TH 13) Reconstruction Project TRN#20-000001 City of Prior Lake WSB Project No. R-13977-000 14 7. FEASIBILITY AND RECOMMENDATION The improvements proposed in this study are necessary for a number of reasons. The reconstruction of the streets within this project provides the City with a cost-effective means of continuing the City’s street improvement efforts and ensuring an adequate means of transportation for local residents. The reconstruction of utilities within the area is ideal at this time due to the reconstruction of the road and the worsening state of the existing utilities. These improvements will provide a longer lasting product needing less maintenance over time. The proposed improvements constitute a project large enough to ensure a competitive bidding environment, economies of scale, and are deemed to be cost-effective. Based on the information contained within this report, the proposed project is deemed necessary, cost-effective, and feasible from an engineering standpoint. The project feasibility is subject to financial review by the City. Feasibility Report Fish Point Road (CSAH 44 to TH 13) Reconstruction Project TRN#20-000001 City of Prior Lake WSB Project No. R-13977-000 APPENDIX A Figure 1 – Project Location Map Figure 2 - Typical Section: Fish Point Road SE (North Area) Figure 3 - Typical Section: Fish Point Road SE (South Area) Figure 4 - Typical Section: Local Streets ?±A@ G³WX Twin Oaks Middle School Hidden Oaks Middle School W O O D S IDE RD S E HIDDENOAKS CIR S E 158 ST W 153 ST W 160 ST E SUE ANN LNHURON ST SEFORSYTHERDSELUTHER RD SE G LO R YCIRSEM IL L E R S C IR SEW I L D WOODCIRSEHILLSBORO AV SCOUNTRYDR COU N T RYLNOMEGATRLSEHWY 13 ST IM BER TRL SE 160 ST SEF ISHPOINTRDSEScott County GIS Ph ase 1 (20 21) Project Location Ph ase 2 (20 23) Project Location 0 400Feet¯Fish Point Road (CSAH 44 to TH 13) Reconstruction ProjectFigure 1 - Project Location MapPrior Lake, MN Document Path: K:\013977-000\GIS\Maps\ProjectLocationAerial.mxd Date Saved: 8/14/2020 8:28:36 AM1 inch = 400 f eet WSB PROJECT NO.:K:\013977-000\Cad\Exhibits\013977_Typical Sections Exhibit.dwg 4/1/2020 12:51:54 PM013977-000 FISH POINT ROAD (CSAH 44 TO TH 13) FIGURE 2 - FISH POINT ROAD SE (NORTH AREA) CITY OF PRIOR LAKE, MN 33'33' ROADWAY 2%2%1:1 14' R/W R/W 2" TYPE SP 12.5 BITUMINOUS WEARING COURSE MIXTURE (3,C) SPWEB340C 2357 BITUMINOUS TACK COAT 2" TYPE SP 12.5 BITUMINOUS BINDER COURSE MIXTURE (3,C) SPWEB340C 2357 BITUMINOUS TACK COAT 2" TYPE SP 12.5 BITUMINOUS NON WEARING COURSE MIXTURE (3,C) SPNWB330C 12" AGGREGATE BASE CLASS 5 12" SELECT GRANULAR EMBANKMENT GEOTEXTILE FABRIC TYPE 5 EXISTING SUBGRADE 14' B618 CONCRETE CURB & GUTTER B618 CONCRETE CURB & GUTTER TYPICAL SECTION FISH POINT ROAD HURON ST SE TO TH 13 CL RECONSTRUCTION PROJECT VARIES max. 10% 4" SALVAGE BOULEVARD TOPSOIL BORROW AND SOD 6" CONCRETE WALK 4" GRANULAR MATERIAL 0.5'-5'5' VARIES max. 10% 9'-13.5'19' VARIES max. 2% 4" PE DRAINTILE 4" PE DRAINTILE WSB PROJECT NO.:K:\013977-000\Cad\Exhibits\013977_Typical Sections Exhibit.dwg 4/1/2020 12:52:31 PM013977-000 FISH POINT ROAD (CSAH 44 TO TH 13) FIGURE 3 - FISH POINT ROAD SE (SOUTH AREA) CITY OF PRIOR LAKE, MN 33'33' ROADWAY 2%2%1:1 21.5' R/W R/W 2" TYPE SP 12.5 BITUMINOUS WEARING COURSE MIXTURE (3,C) SPWEB340C 2357 BITUMINOUS TACK COAT 2" TYPE SP 12.5 BITUMINOUS BINDER COURSE MIXTURE (3,C) SPWEB340C 2357 BITUMINOUS TACK COAT 2" TYPE SP 12.5 BITUMINOUS NON WEARING COURSE MIXTURE (3,C) SPNWB330C 12" AGGREGATE BASE CLASS 5 12" SELECT GRANULAR EMBANKMENT GEOTEXTILE FABRIC TYPE 5 EXISTING SUBGRADE 4" SALVAGE BOULEVARD TOPSOIL BORROW AND SOD 21.5' B618 CONCRETE CURB & GUTTER B618 CONCRETE CURB & GUTTER 5.5'5' VARIES max. 10% VARIES max. 2% 1' TYPICAL SECTION FISH POINT ROAD CSAH 44 TO HURON ST SE 6" CONCRETE WALK 4" GRANULAR MATERIAL 5.5'5' VARIES max. 10% VARIES max. 2% 1' CL RECONSTRUCTION PROJECT 4" PE DRAINTILE 4" PE DRAINTILE WSB PROJECT NO.:K:\013977-000\Cad\Exhibits\013977_Typical Sections Exhibit.dwg 9/1/2020 1:36:48 PM013977-000 25'-30'25'-30' ROADWAY 2%2%1:1 VARIES max. 10% 14' R/W R/W 4" SALVAGE BOULEVARD TOPSOIL BORROW AND SOD 1.5" TYPE SP 12.5 BITUMINOUS WEARING COURSE MIXTURE (3,C) SPWEB240C 2357 BITUMINOUS TACK COAT 2.5" TYPE SP 12.5 BITUMINOUS NON WEARING COURSE MIXTURE (3,C) SPNWB230C 6" AGGREGATE BASE CLASS 5 24" SELECT GRANULAR EMBANKMENT GEOTEXTILE FABRIC TYPE 5 OVER EXISTING SUBGRADE 14' B618 CONCRETE CURB & GUTTER B618 CONCRETE CURB & GUTTER 11'-16' VARIES max. 10% 11'-16' FISH POINT ROAD (CSAH 44 TO TH 13) FIGURE 4 - LOCAL STREETS CITY OF PRIOR LAKE, MN TYPICAL SECTION HIDDEN OAKS CIR, TIMBERVIEW ST, MILLERS CIR, GLORY CIR, OMEGA TRL, TIMBER TRL RECONSTRUCTION PROJECT CL 4" PE DRAINTILE 4" PE DRAINTILE Feasibility Report Fish Point Road (CSAH 44 to TH 13) Reconstruction Project TRN#20-000001 City of Prior Lake WSB Project No. R-13977-000 APPENDIX B Geotechnical Report GEOTECHNICAL REPORT 2021 STREET IMPROVEMENTS PRIOR LAKE, MINNESOTA March 27, 2020 Prepared for: City of Prior Lake 17073 Adelmann Street Prior Lake, MN 55372 WSB PROJECT NO. 013977-000 GEOTECHNICAL REPORT Geotechnical Report 2021 Street Improvements Prior Lake, Minnesota WSB Project No. 013977-000 2021 STREET IMPROVEMENTS PRIOR LAKE, MINNESOTA FOR CITY OF PRIOR LAKE March 27, 2020 GEOTECHNICAL REPORT Geotechnical Report 2021 Street Improvements Prior Lake, Minnesota WSB Project No. 013977-000 CERTIFICATION I hereby certify that this plan, specification, or report was prepared by me or under my direct supervision and that I am a duly Licensed Professional Engineer under the laws of the State of Minnesota. Mark W. Osborn, PE Date: March 27, 2020 Lic. No. 41362 March 27, 2020 Nick Monserud, PE Assistant City Engineer City of Prior Lake 17073 Adelmann Street Prior Lake, MN 55372 Re: Geotechnical Report 2021 Street Improvements WSB Project No.: 013977-000 We have conducted a geotechnical subsurface exploration program for the above referenced project. This report contains our soil boring logs, an evaluation of the conditions encountered in the borings and our recommendations for suitable foundation type, allowable soil bearing pressure for footing design, and other geotechnical related design and construction considerations. If you have questions concerning this report or our recommendations, or for construction material testing for this project, please call us at (952) 737-4660. Sincerely, WSB Mark Osborn, PE Darin Hyatt, PE Geotechnical Project Engineer Senior Geotechnical Engineer Attachment: Geotechnical Report MWO/ TABLE OF CONTENTS Geotechnical Report 2021 Street Improvements Prior Lake, Minnesota WSB Project No. 013977-000 TITLE SHEET CERTIFICATION SHEET LETTER OF TRANSMITTAL TABLE OF CONTENTS 1. INTRODUCTION ................................................................................................................................... 1 Project Location ......................................................................................................................... 1 Project Description .................................................................................................................... 1 Purpose and Project Scope of Services .................................................................................... 1 2. PROCEDURES ..................................................................................................................................... 2 2.1 Boring Layout and Soil Sampling Procedures ........................................................................... 2 2.2 Groundwater Measurements and Borehole Abandonment ....................................................... 2 2.3 Boring Log Procedures and Qualifications ................................................................................ 2 3. EXPLORATION RESULTS .................................................................................................................. 3 3.1 Site and Geology ....................................................................................................................... 3 3.2 Subsurface Soil and Groundwater Conditions .......................................................................... 3 3.3 Strength Characteristics ............................................................................................................ 4 3.4 Groundwater Conditions ............................................................................................................ 4 4. ENGINEERING ANALYSIS AND RECOMMENDATIONS .................................................................. 7 4.1 Discussion ................................................................................................................................. 7 4.2 Retaining Wall Area Preparation ............................................................................................... 7 4.3 Foundation Recommendations.................................................................................................. 8 4.4 Excavations Near Existing Structures ....................................................................................... 8 4.5 Retaining Walls .......................................................................................................................... 8 4.6 Backfill and Fill Selection and Compaction ............................................................................... 9 4.7 Pavement Subgrade Preparation and Stability ......................................................................... 9 4.8 Pavement Area ........................................................................................................................ 10 4.9 Optional Frost Free Pavement Design .................................................................................... 12 4.10 Utilities ..................................................................................................................................... 12 4.11 Dewatering............................................................................................................................... 12 4.12 Construction Considerations ................................................................................................... 12 4.13 Construction Safety ................................................................................................................. 13 4.14 Cold Weather Construction ..................................................................................................... 13 4.15 Field Observation and Testing................................................................................................. 13 4.16 Plan Review and Remarks ...................................................................................................... 13 5. STANDARD OF CARE ....................................................................................................................... 15 Appendix A Soil Boring Exhibit Logs of Test Borings Symbols and Terminology on Test Boring Log Notice to Report Users Boring Log Information Unified Soil Classification System (USCS) Geotechnical Report 2021 Street Improvements Prior Lake, Minnesota WSB Project No. 013977-000 Page 1 1. INTRODUCTION Project Location The site is located along Fish Point Road between State Hwy 13 and 160th Street SE, as well as Timber Trail SE, Glory Circle, Hidden Oaks Circle, Timberview Street, M illers Circle, and Omega Trail, all within Prior Lake, Minnesota. The approximate soil boring locations can be found on the Soil Boring Exhibit in Appendix A. Project Description It is our understanding that this project consists of reconstruction of Fish Point Road between State Hwy 13 and 160th Street SE, as well as reconstruction of Timber Trail SE, Glory Circle, Hidden Oaks Circle, Timberview Street, Millers Circle, and Omega Trail. Along with pavement reconstruction and installation of concrete curb and gutter, we understand the underground utilities (watermain, sanitary) will be reconstructed across much of the project. Retaining walls along the roadway wi ll also be reconstructed. We understand that the sanitary sewer within the southern half of the project is at depths of about 25 feet below existing pavement grade. We understand the horizontal and vertical alignment of the roadways will remain relativ ely unchanged from existing conditions. WSB has developed foundation recommendations for this project in consideration of the proposed layout, loadings, and structural configurations as understood at this time. When the designer develops additional information about final design structural loadings, building configuration, or other significant factors, the recommendations presented herein may no longer apply. WSB should be made aware of the revised or additional information in order to evaluate the recommendations for continued applicability. Purpose and Project Scope of Services Monica Heil with WSB requested these services which were authorized by Nick Monserud with the City of Prior Lake. In order to assist the design team in preparing plans and specifications, we have developed recommendations for retaining wall foundations, underground utilities and pavements. As such, we have completed a subsurface exploration program and prepared a geotechnical report for the referenced site. This stated purpose was a significant factor in determining the scope and level of service provided. Should the purpose of the report change the report immediately ceases to be valid and u se of it without WSB’s prior review and written authorization should be at the user’s sole risk. Our authorized scope of work has been limited to: 1. Clearing underground utilities utilizing Gopher State One Call. 2. Mobilization / demobilization of a truck mounted drill rig. 3. Drilling 9 standard penetration borings to 20 foot depths. 4. Drilling 9 standard penetration borings to 30 foot depths. 5. Sealing the borings per Minnesota Department of Health procedures. 6. Perform soil classification and analysis. 7. Review of available project information and geologic data. 8. Providing this geotechnical report containing: a. Summary of our findings. b. Discussion of subsurface soil and groundwater conditions and how they may affect the proposed underground utilities and pavements. c. Estimated allowable bearing capacity of the soils. d. Estimated excavation depths to suitable soils. e. Estimated R-value of the soils. f. Recommended pavement section. g. A discussion of soils for use as structural fill and site fill. Geotechnical Report 2021 Street Improvements Prior Lake, Minnesota WSB Project No. 013977-000 Page 2 2. PROCEDURES 2.1 Boring Layout and Soil Sampling Procedures WSB completed 18 standard penetration soil borings along the proposed roadway improvement areas. WSB recommended the boring depths and selected the desired locations. Our field crew staked the borings by estimating from existing site features from the supplied site plan. The approximate boring locations are shown on the Soil Boring Exhibit in Appendix A which is an aerial photo. The ground surface elevations at the borings were estimated by using LIDAR data with 2 foot contours. These maps should be accurate to within +/- one foot (1’) provided ground surface modifications at this site have not been completed since LIDAR data was obtained. The borings were completed within the roadways and were not completed at the base of any existing retaining walls. We completed the borings between September 9 and September 27, 2019 with a truck-mounted CME-55 drill rig operated by a two-person crew. The drill crew advanced the borings using continuous hollow stem augers. The drilling information is provided on the boring logs. Generally, the drill crew sampled the soil in advance of the auger tip at two and one-half (2 ½) foot intervals to a depth of 15 feet and then at five (5) foot intervals thereafter to the termination depth of the boring. The soil samples were obtained using a split-barrel sampler which was driven into the ground during standard penetration tests in accordance with ASTM D 1586, Standard Method of Penetration Test and Split-Barrel Sampling of Soils. The materials encountered were described on field logs and representative samples were containerized, and transported t o our laboratory for further observation and testing. The samples were visually observed to estimate the distribution of grain sizes, plasticity, consistency, moisture condition, color, presence of lenses and seams, and apparent geologic origin. We classified the soils according to type using the Unified Soil Classification System (USCS). A chart describing the USCS is included in Appendix A. 2.2 Groundwater Measurements and Borehole Abandonment The drill crew observed the borings for free groundwater while drilling and after completion of the borings. These observations and measurements are noted on the boring logs. The crew then backfilled the borings to comply with Minnesota Department of Health regulations. 2.3 Boring Log Procedures and Qualifications The subsurface conditions encountered by the borings are illustrated on the Logs of Test Borings in Appendix A. Similar soils were grouped into the strata shown on the boring logs, and the appropriate estimated USCS classification symbols were also added. The depths and thickness of the subsurface strata indicated on the boring logs were estimated from the drilling results. The transition between materials (horizontal and vertical) is approximate and is usually far more gradual than shown. Information on actual subsurface conditions exists only at the specific locations indicated and is relevant only to the time exploration was performed. Subsurface conditions and groundwater levels at other locations may differ from conditions found at the indicated locations. The nature and extent of these conditions would not become evident until exposed by construction excavation. These stratification lines were used for our analytical purposes and, due to the aforementioned limitations, should not be used as a basis of design or construction cost estimates. Geotechnical Report 2021 Street Improvements Prior Lake, Minnesota WSB Project No. 013977-000 Page 3 3. EXPLORATION RESULTS 3.1 Site and Geology The borings were completed through the existing bituminous surfaced roadways. Approximate boring elevations ranged from 946 to 996 feet, and indicate an undulating terrain. Geologic origins can be difficult to determine solely from boring samples. We referenced online geologic data of the area and used our experience to help determine geologic origin of the soils, however only a detailed geologic exploration would accurately determine the geologic history of the site. The Scott County Geologic Atlas indicates the surficial geology of the area is mostly bedrock consisting of glacial till deposits consisting of a mixture of clay, silt, and sands. Gravels and cobbles are present in areas and layers of lean clay or silt may be encountered. 3.2 Subsurface Soil and Groundwater Conditions The boring profile generally consisted of the pavement section and fill materials overlying glacial till and outwash deposits. Pavement section The pavement section generally consisted of bituminous asphalt overlying an aggregate base material. The bituminous asphalt generally ranged from about 4 to 10 inches in thickness and averaged just over 6 inches. The aggregate base consisted of crushed limestone and natural granular soils consisting of sands, sands with silt, and silty sands with various amounts of gravel. The aggregate base generally ranged from about 4 ½ to 24 inches in thickness and averaged just over 8 inches. Fill The borings encountered fill materials at PB-01, PB-02, PB-03, PB-06, PB-12, PB-13, and PB-18. The fills generally consisted of lean clays with sand, silty clays, organic clays, and clayey sands. The fills were brown to dark brown to gray to black in color and generally moist to wet. Glacial deposits The predominate soils encountered in the borings were glacial deposits. These glacial till and outwash deposits generally consisted of lean clays with sand, sandy lean clays, silty clays, clayey silts, clayey sands, silty sands, and sands with various amounts of gravel. These soils were brown to dark brown to reddish brown to gray in color and were generally moist to wet. Table 1 below presents the existing roadway pavement section and subgrade profiles. Table 1: Roadway Soil Boring Profiles Boring # Bituminous Thickness (inches) Aggregate Base Thickness (inches) Subgrade Soils PB-01 8 10 Fill: Sandy Lean Clay PB-02 10 24 Fill: Lean Clay, debris PB-03 7 7 Fill: Sandy Clay and Clayey Sands PB-04 4 7 Lean Clay with Sand PB-05 6.5 8 Silty Sand, Lean Clay with Sand PB-06 6 9 Fill: Lean Clay with Sand PB-07 8 4.5 Clayey Sand Geotechnical Report 2021 Street Improvements Prior Lake, Minnesota WSB Project No. 013977-000 Page 4 Boring # Bituminous Thickness (inches) Aggregate Base Thickness (inches) Subgrade Soils PB-08 6 9 Sand with a little Gravel PB-09 6.5 10 Lean Clay with Sand PB-10 8 4.5 Lean Clay with Sand PB-11 3 5.5 Lean Clay with Sand PB-12 4 7 Fill: Lean Clay with Sand PB-13 4.5 8.5 Fill: Silty Clay and Lean Clay with Sand PB-14 4 8 Lean Clay with Sand PB-15 6 6 Silty Sand with Clay PB-16 7 5 Lean Clay with Sand PB-17 6 4.5 Sandy Clay with Gravel PB-18 6 8 Fill: Lean Clay with Sand 3.3 Strength Characteristics The penetration resistance N-values of the materials encountered were recorded during drilling and are indicated as blows per foot (BPF). Those values provide an indication of soil strength characteristics and are located on the boring log sheets. Also, visual-manual classification techniques and apparent moisture contents were also utilized to make an engineering judgment of the consistency of the materials. Table 2 presents a summary of the penetration resistances in the soils for the borings complet ed and remarks regarding the material strengths of the soils. Table 2: Penetration Resistances Soil Type Classification Penetration Resistances Remarks Fill Varies 4 to 24 BPF Variable compaction Glacial Deposits (cohesive) CL, SC 4 to 95 BPF Average 16 BPF Very soft to very hard Generally hard Glacial Deposits (cohesionless) SP, SP-SM, SM, ML 2 to 68 BPF Average 17 BPF Very loose to very dense Generally medium dense The preceding is a generalized description of soil conditions at this site. Variations from the generalized profile exist and should be assessed from the boring logs, the normal geologic character of the deposits, and the soils uncovered during site excavation. 3.4 Groundwater Conditions WSB took groundwater level readings in the exploratory borings, reviewed the data obtained, and discussed its interpretation of the data in the text of the report. Note that groundwater levels may fluctuate due to seasonal variations (e.g. precipitation, snowmelt and rainfall) and/or other factors not evident at the time of measurement. The bore holes were only left open a short period of time, and groundwater levels may not have stabilized. Geotechnical Report 2021 Street Improvements Prior Lake, Minnesota WSB Project No. 013977-000 Page 5 Table 3 below is a summary of the estimated water levels at our borings. Table 3: Roadway Soil Boring Profiles Boring No. Ground Surface Elevation Estimated Depth to Groundwater Estimated Depth of Gray Colored Soils Estimated Groundwater Elevation PB-01 962 NE 14 948 PB-02 946 3 7 943 PB-03 956 NE 7 ½ 949 PB-04 982 NE 7 975 PB-05 986 NE NE Below 955 PB-06 982 15 12 970 PB-07 978 NE NE Below 947 PB-08 970 NE NE Below 949 PB-09 958 NE 9 949 PB-10 984 NE NE Below 963 PB-11 996 NE NE Below 975 PB-12 972 NE NE Below 951 PB-13 991 NE NE Below 970 PB-14 946 NE 1 945 PB-15 990 NE 19 971 PB-16 984 NE 4 980 PB-17 982 NE 1 981 PB-18 980 NE NE Below 949 NE – indicates ground water or gray colored soils were not encountered. Elevations rounded to the highest ½ foot. Groundwater was encountered in Borings PB-02 and PB-06. Many of our borings encountered sands at depth that were considered moist as opposed to wet or waterbearing, indicating a static groundwater level is likely below the depths of those borings. We also noted gray colored soils in many of the other borings. Gray colored soils can be an indication of long term saturation conditions and could show potential groundwater elevations. Lower Prior Lake is located approximately 500 feet north of the proj ect. Based on data from the Minnesota Department of Natural Resources, Lower Prior Lake has an ordinary high water level of 903.9 feet. Based on this, it is our opinion that the groundwater encountered during drilling is likely a perched groundwater table, however perched groundwater could have substantial volumes and may not be easy to dewater. The perched groundwater could present an issue to excavations and placement of foundations and for utility installation. It is our opinion that the contractor should be prepared for dewatering. It should be noted that groundwater readings are difficult to obtain in cohesive soils such as the lean clays indicated in the boring logs. These soils have a low permeability and take a long period of time to obtain groundwater readings in. If more accurate subsurface water levels are needed, we recommend piezometers be installed to determine the groundwater level over several months. Monitoring of the Geotechnical Report 2021 Street Improvements Prior Lake, Minnesota WSB Project No. 013977-000 Page 6 groundwater table elevation could occur up to the time of construction. This work was outside our scope of services. Geotechnical Report 2021 Street Improvements Prior Lake, Minnesota WSB Project No. 013977-000 Page 7 4. ENGINEERING ANALYSIS AND RECOMMENDATIONS 4.1 Discussion Fills No information was provided to us regarding density tests or excavation observations for the existing fills encountered at the boring locations. The best option is complete removal of fills materials below all pavements and utilities. However, these fills were likely placed during initial roadway or utility construction and have been under traffic loading for many years. In our opinion, the risk of construction of the pavement area or a utility upon these soils is generally low. The City may option for a partial removal of the organic and wet fill materials. The borings were completed in the roadway areas, however we used the boring data for the nearby retaining walls. Fills should be removed entirely below the retaining wall foundation. These soils may be suitable for reuse if they are free of organics and can be moisture conditioned to meet compaction requirements. Glacial Deposits Based on the results of our borings, the glacially deposited soils generally appear capable of supporting the retaining walls, pavement section, and utilities. However, some of the clayey or silty soils are locally wet and would require a partial excavation and replacement. General It is our opinion that perched groundwater could be encountered by excavations at this site and could affect construction of foundations and utilities. The contractor should be prepared for dewatering. Generally, the soils in the upper 4 feet of the subgrade influence pavement performance the most. The soils within the pavement subgrade consist of clays and silts, which are frost susceptible soils. Consideration should be given to partially subcutting these soils an d replacing with a non-frost susceptible granular fill to reduce the potential frost heave below the pavement section. Silt soils are also not recommended for direct support of pavements for the aforementioned frost reasons but also because they are sensitive to moisture changes, easily disturbed by construction traffic, and difficult to compact. Where silt soils are present at the top of grading grade we expect a partial subcut and replacement with an engineered fill is recommended. 4.2 Retaining Wall Area Preparation We recommend removal of the fills and organics from below the retaining walls. Additionally, we recommend a minimum of 1 foot of granular fill be placed directly below the retaining wall foundations for support. If wet silt/clay soils that are loose/soft or become loose/soft are present under the 1 foot subcut they should be subcut a minimum of another 1 foot. Loosened sands at bottom of footing elevations should be surface compacted with a large vibratory roller having a drum diameter of at least five feet (5’) and a static dead weight of at least ten (10) tons prior to placement of engineered fill and backfill or concrete. The sub-excavations should be oversized by at least one foot (1’) beyond the edge of footings for each foot of depth below the bottom of footing elevations (1-horizontal to 1-vertical lateral oversizing). Because the depth and lateral extent of the sub-excavations will vary away from our borings, we recommend a qualified engineering technician working under the direction of a registered professional geotechnical engineer observe and test the excavation bases during construction. Based on the borings, it appears that the on-site non-organic soil can generally be reused as structural backfill provided it is moisture conditioned and can be compacted to project specifications. However, silt soils will be difficult to place and compact especially when wet and are not recommended as fill below the retaining wall foundation or as backfill materials. Geotechnical Report 2021 Street Improvements Prior Lake, Minnesota WSB Project No. 013977-000 Page 8 The site should be graded to prevent water from ponding on silty or clayey soils and potentially softening them. 4.3 Foundation Recommendations We recommend that the retaining wall foundations in this development be supported on conventional spread footings bearing on a minimum of 1 foot of granular fill placed over naturally occurring glacial deposits. Based on the borings, it is our opinion the footings throughout may be designed for a net allowable soil bearing pressure not to exceed 2,000 pounds per square foot (psf). Frost protection should follow Minnesota Administrative Rules 1305.1809. We recommend unheated footings be placed at least five feet (5’) below adjacent exterior grade. The factor of safety against shear or bearing capacity failure for this footing design would be three (3) or greater. If the site is prepared as recommended, we estimate that total and differential se ttlements corresponding to our assumed structural loads would be less than one inch (1”) and one -half inch (1/2”), respectively, provided the bearing soils are not frozen or disturbed at the time of construction. 4.4 Excavations Near Existing Structures The construction planned at this site will require some excavations near existing structures. We recommend that the owner be involved with the contractor and engineer in determining what level of care will be needed to ensure that there is no undermining of any existing foundation or slab and that no sensitive equipment could be damaged by nearby construction. Monitoring of the excavation and existing building can be completed with visual observations, vibration monitoring, crack monitoring, pr e and post construction video surveys, and survey elevation points on the existing structure. At no time should the excavations extend below existing footings or within a 1:1 oversize below the footings, unless that foundation is properly braced and supported. 4.5 Retaining Walls To help prevent water from accumulating behind retaining walls in clayey or silty soils, we recommend drain tiles be placed at the base of the granular subbase. To promote water migration to the drain tile, we recommend either a drainage composite be placed against the back side of the wall or at least two feet (2’) (horizontally) of clean coarse sand be placed along the back of the wall. We recommend the upper foot of backfill consist of clayey soils to act as a “cap” and reduce water infiltration into the backfill soils. The drain tile should be connected to the storm sewer system or “daylighted” to suitable disposal areas. To assist in below-grade/retaining wall design Table 4 presents estimated soil parameters for common backfill soils. The coefficients presented below assume a level backfill at the top of wall. If the backfill is sloped, these values may change significantly. Silt (ML) is not recommended as backfill for walls. Table 4: Estimated Soil Parameters for Below Grade/Retaining Wall Design Soil Type Unit Weight pcf Cohesion Adhesion Angle of Internal Friction Equivalent Fluid Weight (psf/ft)^2 Active Passive At-Rest SP, SP-SM 120 --- --- 32 35 400 55 SM, SC 125 --- --- 30 40 375 65 CL 115 1000 700 18 60 220 80 * - Parameters do not include safety factors. Geotechnical Report 2021 Street Improvements Prior Lake, Minnesota WSB Project No. 013977-000 Page 9 4.6 Backfill and Fill Selection and Compaction The on-site non-organic soils may be reused as backfill and fill provided they are moisture conditioned and can be compacted to their specified densities. Organic soils removed during the excavation process should be limited to use as fills in landscaping areas. Wet soils that are excavated would need to be dried before reuse as an engineered fill. Silt soils are not recommended for reuse below foundations, utilities, or the pavement section and should be used only in landscaping areas. We recommend use of a minimum of 2 feet of clean coarse sand with less than 50 percent passing the #40 sieve and less than 5 percent passing the #200 sieve when backfilling the bottom of a wet excavation. Backfills with cobbles larger than six inches (6”) should not be placed within 3 feet of grading grade or the retaining wall foundations or in contact with utilities. We recommend that clayey soils be moisture conditioned to within +/-2 percent of the optimum moisture content as determined from their standard Proctor tests (ASTM D-698). Fill should be spread in lifts of 8 to 12 inches, depending on the size and type of compaction equipment used. Table 5 provides the recommended compaction levels. Table 5: Recommended Level of Compaction for Backfill and Fill Area Percent of Standard Proctor Maximum Dry Density Retaining Wall Foundation 95 Pavement: Within 3 feet of bottom of aggregate base Within 3 foot radius of vertical utility structure 100 Pavement: Greater than 3 feet below aggregate base 95 Utility Trench 95 Landscaping (non-structural) 90 4.7 Pavement Subgrade Preparation and Stability We recommend excavation of any organic fills within 3 feet of the bottom of the aggregate base or within 3 feet of the utility invert. The soils at the bottom of the excavation should generally be prepared in accordance with MnDOT Specification 2112, Subgrade Preparation. If the subgrade preparation operations encounter unstable soils, we recommend removing these unsuitable materials and replacing them with Select Grading Material (MnDOT 2105.1.A.6). If the on-site soils cannot be moisture conditioned and compacted as recommended, additional measures, such as placement of additional sand subbase or a section of coarse breaker run aggregate, can be completed to provide a firm base for subsequent fill placement. Before placement of the sand subbase, the final subgrade should have proper stability within three vertical feet of grading grade (grade which contacts the bottom of the aggregate base). This will generally be achieved in fill areas with proper compaction of embankment materials and in cut areas through proper subgrade preparation. The stability of the pavement subgrade should be evaluated prior to placement of the sand subbase using the test roll procedure (MnDOT 2111), except a fully l oaded tandem axle dump truck or a full water truck should be utilized for the proof roll. If unstable soils are found under the test roll, these soils should be improved by means of scarification, moisture conditioning, and re - compaction, or by subcutting and replacement. We recommend placement of a geotextile fabric meeting the requirements of MnDOT Specification 3733, Type V beneath the sand subbase and above the on-site silt soils to limit mixing of the granular materials with the underlying fine-grained subgrade. Geotechnical Report 2021 Street Improvements Prior Lake, Minnesota WSB Project No. 013977-000 Page 10 4.8 Pavement Area Once the site has been prepared as recommended, we anticipate the prepared subgrade soils will consist mostly of lean clays, sandy clays, clays with sand, and sands. Based on the MnDOT Flexible Pavement Guide from 2017, the R-values of the subgrade soils would range between 10 and 70. We used a design R-value of 10 for the roadways based on the predominance of the clay soils. North Fish Point Road (North of Huron Road) Information provided to us indicates that traffic along North Fish Point Road has an Annual Average Daily Traffic (AADT) traffic volume of 1554. We estimated that traffic volumes would increase at an average rate of 2.5%. Based on the traffic data provided to us, the traffic loading consists of 62% passenger vehicles, 32% vans and pickups, 2% bus and truck traffic, and 4% tractor -trailers. Our design is based on a standard twenty (20) year design life of the pavement section. Based on the estimated traffic ADT we used the Minnesota State Aid Traffic Design forecast program to calculate the roadway traffic to be equivalent to approximately 301,000 Equivalent Single Axle Loads (ESAL’s) for roadway design. This is based on an Urban vehicle classification on a 2-lane road. Our Minnesota State Aid Traffic Design forecasting was based on a 10-ton road design. Based on MnDOT’s FlexPave excel design utilizing granular equivalent charts, we recommend the pavement section indicated below in Table 6. Table 6: Recommended Flexible Pavement Section North Fish Point Road Section Thickness (inches) Granular Equivalent Bituminous Course, MnDOT 2360 SPWEB340C 2 4.5 Bituminous Course, MnDOT 2360 SPWEB340C 2 4.5 Bituminous Course, MnDOT 2360 SPNWB330B 2 4.5 Aggregate Base, MnDOT 3138 (Class 5, 5Q, or 6) 12 12 Select Granular MnDOT 3149.2.B.2 12 6 Geotextile Fabric, MnDOT Spec 3733, Type V Yes - Subgrade Preparation, MnDOT 2112 Yes - TOTAL - 31.5 South Fish Point Road (South of Huron Road) Information provided to us indicates that traffic along North Fish Point Road has an Annual Average Daily Traffic (AADT) traffic volume of 2092. We estimated that traffic volumes would increase at an average rate of 2.5%. Based on the traffic data provided to us, the traffic loading consists of 63% passenger vehicles, 30% vans and pickups, 3% bus and truck traffic, and 4% tractor -trailers. Our design is based on a standard twenty (20) year design life of the pavement section. Based on the estimated traffic ADT we used the Minnesota State Aid Traffic Design forecast program to calculate the roadway traffic to be equivalent to approximately 472,000 Equivalent Single Axle Loads (ESAL’s) for roadway design. This is based on an Urban vehicle classification on a 2-lane road. Our Minnesota State Aid Traffic Design forecasting was based on a 10-ton road design. Based on MnDOT’s FlexPave excel design utilizing granular equivalent charts, we recommend the pavement section indicated below in Table 7. Geotechnical Report 2021 Street Improvements Prior Lake, Minnesota WSB Project No. 013977-000 Page 11 Table 7: Recommended Flexible Pavement Section South Fish Point Road Section Thickness (inches) Granular Equivalent Bituminous Course, MnDOT 2360 SPWEB340C 2 4.5 Bituminous Course, MnDOT 2360 SPWEB340C 2 4.5 Bituminous Course, MnDOT 2360 SPNWB330B 2 4.5 Aggregate Base, MnDOT 3138 (Class 5, 5Q, or 6) 12 12 Select Granular MnDOT 3149.2.B.2 12 6 Geotextile Fabric, MnDOT Spec 3733, Type V Yes - Subgrade Preparation, MnDOT 2112 Yes - TOTAL - 31.5 Other Roadways The cul-de-sac roadways did not have any traffic load information. Based on the roadways being cul-de- sacs, we assumed the ESAL’s would be less than 50,000. Our Minnesota State Aid Traffic Design forecasting was based on a 10-ton road design. Based on MnDOT’s FlexPave excel design utilizing granular equivalent charts, we recommend the pavement section indicated below in Table 8. Table 8: Recommended Flexible Pavement Section Section Thickness (inches) Granular Equivalent Bituminous Course, MnDOT 2360 SPWEB240C 1 ½ 3.4 Bituminous Course, MnDOT 2360 SPWEB240C 2 4.5 Aggregate Base, MnDOT 3138 (Class 5, 5Q, or 6) 6 6 Select Granular MnDOT 3149.2.B.2 12 6 Subgrade Preparation, MnDOT 2112 Yes - TOTAL - 19.9 General We recommend limiting Recycled Asphalt Pavement (RAP) within the upper wear course to a maximum of 10 percent in order to minimize cracking. Aggregate base placement for pavement support should meet the gradation and quality requirements for Class 5, 5Q, or 6 per MnDOT specification 3138. Aggregate base material should be compacted to 100 percent of its standard Proctor maximum dry density. Within several years after initial paving, some thermal shrinkage cracks will develop. We recommend routine maintenance be performed to improve pavement performance and increase pavement life. Pavement should be sealed with a liquid bitumen sealer to retard water intrusion into the base course and subgrade. Localized patch failures may also develop where trucks or buses turn on the pavement. When these occur, they should be cut out and patch repaired. The pavement sections above provide options to meet the ESAL requirements. Other pavement design options would be acceptable as well as long as they meet the minimum requirements for bituminous thickness, aggregate base thickness, and can meet the ESAL requirements. Geotechnical Report 2021 Street Improvements Prior Lake, Minnesota WSB Project No. 013977-000 Page 12 4.9 Optional Frost Free Pavement Design Optionally, the use of a non-frost susceptible sand cushion will help reduce the effects of frost heave. In our opinion, placement of 12 inches of select granular fill below the Class 5 Aggregate Base should generally provide for a non-frost susceptible subgrade. It should be noted that any sand cushion placed below the pavement section will provide positive benefits for reduced potential frost heave. The owner and/or design team should evaluate the costs and benefit of this option to determine if it should be incorporated into the pavement design. Drainage of the sand cushion is recommended. Drainage of the sand cushion may be accomplished by daylighting to adjacent ditches or the use of drain tile. Drain tile wrapped in a sock should be placed at the base of the sand cushion and tied into catch basins. We recommend the sand cushion contain a select granular sand with less than 12% passing the #200 sieve. Alternately, a 3 inch minus rock fill could be placed instead of a select granular sand and drain tile. For transitioning the thickness of the sand subbase along the profile of the roadway, we recommend the thickness have a longitudinal taper of no steeper than 10H:1V. A taper of 4H:1V can be used perpendicular to the centerline for cross street/driveway connections. The placement of the sand subbase should extend slightly beyond the outer edge of the curbs to maintain subgrade uniformity for frost movement. 4.10 Utilities Invert elevations for the sanitary sewer are anticipated to be within 15 to 25 feet below existing grades and watermain would be approximately 8 to 10 feet below grade. Based on the borings, the subgrade soils for the utilities will consist chiefly of lean clays with sand, sandy clay, silty sand, and sand. We recommend removal of any organic soils of existing fills from within 3 feet below the utility invert. Any wet silts/clays should be subcut a minimum of 2 feet and replaced with an engineered fill. MnDOT Specification 3149.2F Granular Bedding should be placed to at least the crown of the pipe. Trench backfill above this point may consist of the non-organic excavated soils once moisture conditioned as recommended. Underground utilities are expected to be installed by backhoes completing the excavations and placing fills. Soil compactors should be used to compact the fill in even lifts to the specified densities. 4.11 Dewatering Groundwater and wet or saturated soils were encountered in the borings. Perched groundwater could enter the excavations. Dewatering can likely be accomplished with sumps and pumps placed at low points in the utility trenches. Where granular soils are present, dewatering greater than 2 feet could require sand point wells. 4.12 Construction Considerations Good surface drainage should be maintained throughout the work so that the site is not vulnerable to ponding during or after a rainfall. If water enters the excavations, it should be promptly removed prior to further construction activities. Under no circumstances should fill or concrete be placed into standing water. Soil corrections at this site for foundations and pavement subgrades may not be continuous. We recommend tapering the fills back to native soils at a ten to one (10:1) slope. It is important to review the fill limits and total depth of fill when placing str uctures upon compacted materials and when filling the excavation. The location of the footings should allow for at least a one to one (1:1) slope from the bottom of the footing to the outside limits of the engineered fill. Geotechnical Report 2021 Street Improvements Prior Lake, Minnesota WSB Project No. 013977-000 Page 13 It is important to check this at the time of construction that during filling, unsuitable soils do not encroach within the one to one (1:1) slope limits and extending downward and outward from future footings. 4.13 Construction Safety All excavations should comply with the requirements of OSHA 29 CFR, Part 1926, Subpart P “Excavations and Trenches”. This document states that excavation safety is the responsibility of the contractor. Reference to this OSHA requirement should be included in the job specifications. The responsibility to provide safe working conditions on this site, for earthwork, building construction, or any associated operations is solely that of the contractor. This responsibility is not borne in any manner by WSB. 4.14 Cold Weather Construction It is our understanding that construction is unlikely to occur during the winter months. However, if the construction does continue into the winter months we recommend the following guidelines. Roadbed embankments should not be constructed during periods when t he embankment material freezes while being placed and compacted, nor should embankment material be placed on soil that is frozen to a depth greater than 4 inches. When the soils are frozen to a depth exceeding 4 inches, at a time when weather conditions are such that embankment construction could be continued without the material freezing as it is being placed and compacted, the contractor may be permitted to excavate the frozen soil and proceed with the embankment construction for so long as the weather w ill permit. The frozen soils should be pulverized or replaced with other suitable soils to construct the embankments as specified. Only unfrozen fill should be used. Placement of fill and/or foundation concrete should not be permitted on frozen soil, and the bearing soils under footings or under the floor slab should not be allowed to freeze after concrete is placed, because excessive post-construction settlement could occur as the frozen soils thaw. 4.15 Field Observation and Testing The soil conditions illustrated on the Logs of Test Borings in Appendix A are indicative of the conditions only at the boring locations. For this reason, we recommend that excavations at this site be observed by a soil engineer or technician prior to fill or backfill placement or construction of foundation elements to determine if the soils are capable of supporting the fill backfill and/or foundation loads. These observations are recommended to judge if the unsuitable materials have been removed from within the planned construction area and an appropriate degree of lateral oversize has been provided. WSB also recommends a representative number of field density tests be taken in engineered fill and backfill placed to aid in judging its suitability. Fill placement and compaction should be monitored and tested to determine that the resulting fill and backfill conforms to specified density, strength or compressibility requirements. We recommend at least one compaction test for every 50 linear feet along the retaining walls, and one compaction test for every 150 feet of utility trench at a vertical interval of two (2) feet. Prior to use, proposed fill and backfill material should be submitted to the WSB laboratory for testing to verify compliance with recommendations and project specifications. Dynamic Cone Penetrometer (DCP) tests can be completed in the aggregate base in lieu of density testing. We recommend following MnDOT Specification 2211.3.D.2.c. WSB would be pleased to provide the advised field observation, monitoring and testing services during construction. 4.16 Plan Review and Remarks The observations, recommendations and conclusions described in this report are based primarily on information provided to WSB, obtained from our subsurface exploration, our experience, several assumptions and the scopes of service developed for this project and are for the sole use of our client. Geotechnical Report 2021 Street Improvements Prior Lake, Minnesota WSB Project No. 013977-000 Page 14 We recommend that WSB be retained to perform a review of final design drawing and specifications to evaluate that the geotechnical engineering report has not been misinterpreted. Should there be changes in the design or location of the structures related to this project or if there are uncertainties in the report we should be notified. We would be pleased to review project changes and modify the recommendations in this report or provide clarification in writing. The entire report should be kept together; for example, boring logs should not be removed and placed in the specifications separately. The boring logs and related information included in this report are indicators of the subsurface conditions only at the specific locations indicated on the Soil Boring Exhibit and times noted on the Logs of Test Boring sheets in Appendix A. The subsurface conditions, including groundwater levels, at other locations on the site may differ significantly from conditions that existed at the time of sampling and at the boring locations. The test borings were completed by WSB solely to obtain indications of subsurface conditions as part of a geotechnical exploration program. No services were performed to evaluate subsurface environmental conditions. WSB has not performed observations, investigations, explorations, studies or testing that are not specifically listed in the scope of service. WSB should not be liable for failing to discover any condition whose discovery required the performance of services not authorized by the Agreement . Geotechnical Report 2021 Street Improvements Prior Lake, Minnesota WSB Project No. 013977-000 Page 15 5. STANDARD OF CARE The recommendations and opinions contained in this report are based on our professional judgment. The soil testing and geotechnical engineering services performed for this project have been performed with the level of skill and diligence ordinarily exercised by reputable members of the same profession under similar circumstances, at the same time and in the same or a similar locale. No warranty, either expressed or implied, is made. Geotechnical Report Appendix A 2021 Street Improvements Prior Lake, Minnesota WSB Project No. 013977-000 APPENDIX A Soil Borings Exhibit Logs of Test Borings Symbols and Terminology on Test Boring Log Notice to Report Users Boring Log Information Unified Soil Classification Sheet (USCS) ?±A@ G³WX Twin Oaks Middle School Hidden Oaks Middle School W O O D S I DE RD S E HIDDENOAKS CIR S E 158 ST W 153 ST W 160 ST E SUE ANN LNHURON ST SEFORSYTHERDSELUTHER RD SE G LO R YCIRSEM IL L E R S C IR SEW I L D WOODCIRSEHILLSBOROAVSCOUNTRYDR COU N T RYLNOMEGATRLSEHWY 13 ST IM BER TRL S E 160 ST SE FISHPOINTRDSE Proje ct L ocation 0 400Feet¯2021 Street Reconstruction ProjectPrior Lake, MN Document Path: K:\013977-000\GIS\Maps\ProjectLocationAerial.mxd Date Saved: 8/27/2019 8:25:51 AM1 inch = 400 f eet 3 1/4" HSA 0' - 19.5' 28 25 20 1 2 3 4 5 6 7 8 HSA SB HSA SB HSA SB HSA SB HSA SB HSA SB HSA SB Pavement Section Fill Glacial Till Fill Fill Fill CL CL 15 7 4 7 5 8 8 8" BITUMINOUS ASPHALT 10" AGGREGATE BASE: Clayey Sand, brown FILL, Sandy Lean Clay, brown to gray, moist FILL, Organic Clay with Sand and Peat, dark brown and black, moist FILL, Organic Clay with Sand and Lean Clay with Sand, black and brown and olive brown, moist SILTY CLAY, brown, wet, soft LEAN CLAY WITH SAND, brown to gray, moist, soft End of Boring 21.0 ft. N-Value Plot 9.50 19 TIME CASING DEPTH CAVE-IN DEPTH WATER DEPTH WATER ELEVATION WATER LEVEL MEASUREMENTS SAMPLED DEPTHDATE 19.5 172111:00 am9/09/2019 METHOD START: 9/09/2019 END: 9/09/2019 Logged By: MWOR. Kurth Notes: Crew Chief: None PROJECT NAME: 2021 Street Improvements LOG OF TEST BORING PROJECT LOCATION: Prior Lake, Minnesota BORING NUMBER PB-01 PAGE 1 OF 1SURFACE ELEVATION: 962 ftCLIENT/WSB #: 013977-000 SAMPLE MC %No.TYPE DrillingOperationGEOLOGIC ORIGINUSCSDEPTH (ft) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 WLN % FinesGEOTECHNICAL N-PLOT - WSB.GDT - 10/10/19 09:57 - K:\013977-000\GEOTECH-CMT\PL 2021 ST IMP.GPJELEV. (ft) 961 960 959 958 957 956 955 954 953 952 951 950 949 948 947 946 945 944 943 942 941 ELEV. (ft) 961 960 959 958 957 956 955 954 953 952 951 950 949 948 947 946 945 944 943 942 941 DESCRIPTION OF MATERIAL 15 7 4 7 5 8 8 3 1/4" HSA 0' - 19.5' 29 17 16 38 1 2 3 4 5 6 7 8 HSA SB HSA SB HSA SB HSA SB HSA SB HSA SB HSA SB Pavement Section Fill Glacial Till Fill SC CL CL 10 4 6 9 12 15 14 10" BITUMINOUS ASPHALT 24" AGGREGATE BASE: Crushed Limestone: Silty Sand with Gravel, tan FILL, Lean Clay with a little Sand, pieces of Wood, olive gray, wet CLAYEY SAND WITH GRAVEL, brown to gray, wet, loose - brown to reddish brown SANDY LEAN CLAY, brown to reddish brown, moist, firm to hard SANDY LEAN CLAY, dark gray, wet, firm End of Boring 21.0 ft. N-Value Plot 9.50 19 TIME CASING DEPTH CAVE-IN DEPTH WATER DEPTH WATER ELEVATION WATER LEVEL MEASUREMENTS SAMPLED DEPTHDATE 19.5 132112:10 pm9/09/2019 METHOD START: 9/09/2019 END: 9/09/2019 Logged By: MWOR. Kurth Notes: Crew Chief: 3.0 943 PROJECT NAME: 2021 Street Improvements LOG OF TEST BORING PROJECT LOCATION: Prior Lake, Minnesota BORING NUMBER PB-02 PAGE 1 OF 1SURFACE ELEVATION: 946 ftCLIENT/WSB #: 013977-000 SAMPLE MC %No.TYPE DrillingOperationGEOLOGIC ORIGINUSCSDEPTH (ft) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 WLN % FinesGEOTECHNICAL N-PLOT - WSB.GDT - 10/10/19 09:57 - K:\013977-000\GEOTECH-CMT\PL 2021 ST IMP.GPJELEV. (ft) 945 944 943 942 941 940 939 938 937 936 935 934 933 932 931 930 929 928 927 926 925 ELEV. (ft) 945 944 943 942 941 940 939 938 937 936 935 934 933 932 931 930 929 928 927 926 925 DESCRIPTION OF MATERIAL 10 4 6 9 12 15 14 3 1/4" HSA 0' - 19.5' 17 14 14 1 2 3 4 5 6 7 8 HSA SB HSA SB HSA SB HSA SB HSA SB HSA SB HSA SB Pavement Section Fill Glacial Till Fill CL 9 4 12 13 15 16 17 7" BITUMINOUS ASPHALT 7" AGGREGATE BASE: Crushed Limestone: Silty Sand with Gravel, tan FILL, Sandy Clay and Clayey Sand, brown and gray, moist SANDY LEAN CLAY, gray, moist, firm to hard End of Boring 21.0 ft. N-Value Plot 10.50 21 TIME CASING DEPTH CAVE-IN DEPTH WATER DEPTH WATER ELEVATION WATER LEVEL MEASUREMENTS SAMPLED DEPTHDATE 19.5 17211:00 pm9/09/2019 METHOD START: 9/09/2019 END: 9/09/2019 Logged By: MWOR. Kurth Notes: Crew Chief: None PROJECT NAME: 2021 Street Improvements LOG OF TEST BORING PROJECT LOCATION: Prior Lake, Minnesota BORING NUMBER PB-03 PAGE 1 OF 1SURFACE ELEVATION: 956 ftCLIENT/WSB #: 013977-000 SAMPLE MC %No.TYPE DrillingOperationGEOLOGIC ORIGINUSCSDEPTH (ft) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 WLN % FinesGEOTECHNICAL N-PLOT - WSB.GDT - 10/10/19 09:57 - K:\013977-000\GEOTECH-CMT\PL 2021 ST IMP.GPJELEV. (ft) 955 954 953 952 951 950 949 948 947 946 945 944 943 942 941 940 939 938 937 936 935 ELEV. (ft) 955 954 953 952 951 950 949 948 947 946 945 944 943 942 941 940 939 938 937 936 935 DESCRIPTION OF MATERIAL 9 4 12 13 15 16 17 3 1/4" HSA 0' - 29.5' 16 15 17 15 14 9 1 2 3 4 5 6 7 8 9 10 HSA SB HSA SB HSA SB HSA SB HSA SB HSA SB HSA SB HSA SB HSA SB Pavement Section Glacial TillCL CL CL CL 12 15 16 20 15 15 21 18 50/0.2 4" BITUMINOUS ASPHALT 7" AGGREGATE BASE: Sand with Gravel, brown LEAN CLAY WITH SAND, brownish gray, moist, hard SANDY LEAN CLAY, brown with white streaks, moist, hard LEAN CLAY WITH SAND, brown to gray, moist, hard - brown SANDY LEAN CLAY WITH GRAVEL AND COBBLES, dark brown, moist, very dense End of Boring 31.0 ft. N-Value Plot 12.50 25 TIME CASING DEPTH CAVE-IN DEPTH WATER DEPTH WATER ELEVATION WATER LEVEL MEASUREMENTS SAMPLED DEPTHDATE 29.5 243111:00 am9/09/2019 METHOD START: 9/09/2019 END: 9/09/2019 Logged By: MWOR. Kurth Notes: Crew Chief: None PROJECT NAME: 2021 Street Improvements LOG OF TEST BORING PROJECT LOCATION: Prior Lake, Minnesota BORING NUMBER PB-04 PAGE 1 OF 1SURFACE ELEVATION: 982 ftCLIENT/WSB #: 013977-000 SAMPLE MC %No.TYPE DrillingOperationGEOLOGIC ORIGINUSCSDEPTH (ft) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 WLN % FinesGEOTECHNICAL N-PLOT - WSB.GDT - 10/10/19 09:57 - K:\013977-000\GEOTECH-CMT\PL 2021 ST IMP.GPJELEV. (ft) 981 980 979 978 977 976 975 974 973 972 971 970 969 968 967 966 965 964 963 962 961 960 959 958 957 956 955 954 953 952 951 ELEV. (ft) 981 980 979 978 977 976 975 974 973 972 971 970 969 968 967 966 965 964 963 962 961 960 959 958 957 956 955 954 953 952 951 DESCRIPTION OF MATERIAL 12 15 16 20 15 15 21 18 3 1/4" HSA 0' - 29.5' 12 15 15 15 11 1 2 3 4 5 6 7 8 9 10 HSA SB HSA SB HSA SB HSA SB HSA SB HSA SB HSA SB HSA SB HSA SB Pavement Section Glacial TillSM CL SM CL CL 11 12 14 12 21 20 19 15 19 6.5" BITUMINOUS ASPHALT 8" AGGREGATE BASE: Silty Sand with Gravel, light brown SILTY SAND, fine grained, brown, moist, medium dense LEAN CLAY WITH SAND, brown with white streaks, moist, firm SILTY SAND WITH GRAVEL, fine to medium grained, brown, moist, medium dense LEAN CLAY, a little Sand, brown with reddish brown and white streaks, moist, hard LEAN CLAY, a little Sand, dark brown, moist, hard End of Boring 31.0 ft. N-Value Plot 12.50 25 TIME CASING DEPTH CAVE-IN DEPTH WATER DEPTH WATER ELEVATION WATER LEVEL MEASUREMENTS SAMPLED DEPTHDATE 29.5 133112:20 pm9/10/2019 METHOD START: 9/10/2019 END: 9/10/2019 Logged By: MWOR. Kurth Notes: Crew Chief: None PROJECT NAME: 2021 Street Improvements LOG OF TEST BORING PROJECT LOCATION: Prior Lake, Minnesota BORING NUMBER PB-05 PAGE 1 OF 1SURFACE ELEVATION: 986 ftCLIENT/WSB #: 013977-000 SAMPLE MC %No.TYPE DrillingOperationGEOLOGIC ORIGINUSCSDEPTH (ft) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 WLN % FinesGEOTECHNICAL N-PLOT - WSB.GDT - 10/10/19 09:57 - K:\013977-000\GEOTECH-CMT\PL 2021 ST IMP.GPJELEV. (ft) 985 984 983 982 981 980 979 978 977 976 975 974 973 972 971 970 969 968 967 966 965 964 963 962 961 960 959 958 957 956 955 ELEV. (ft) 985 984 983 982 981 980 979 978 977 976 975 974 973 972 971 970 969 968 967 966 965 964 963 962 961 960 959 958 957 956 955 DESCRIPTION OF MATERIAL 11 12 14 12 21 20 19 15 19 3 1/4" HSA 0' - 29.5' 11 19 15 19 15 14 1 2 3 4 5 6 7 8 9 10 HSA SB HSA SB HSA SB HSA SB HSA SB HSA SB HSA SB HSA SB HSA SB Pavement Section Fill Glacial Till Glacial Outwash Glacial Till Fill Fill Fill ML SC SP SM CL 16 10 7 8 16 9 21 12 16 6" BITUMINOUS ASPHALT 9" AGGREGATE BASE: Sand with Silt and Gravel, brown FILL, Lean Clay with Sand, grayish brown, moist FILL, Organic Clay with a little Sand, black and dark brown, moist FILL, Lean Clay with Sand, brown and gray, moist CLAYEY SILT, brown, moist, soft CLAYEY SAND WITH GRAVEL, brown to gray, moist to wet, hard SAND WITH GRAVEL, medium to coarse grained, brown, waterbearing, loose SILTY SAND, fine grained, brown, saturated, medium dense LEAN CLAY, a little Sand, dark gray, moist, firm to hard End of Boring 31.0 ft. N-Value Plot 12.50 25 TIME CASING DEPTH CAVE-IN DEPTH WATER DEPTH WATER ELEVATION WATER LEVEL MEASUREMENTS SAMPLED DEPTHDATE 29.5 143111:17 am9/25/2019 METHOD START: 9/25/2019 END: 9/25/2019 Logged By: MWOR. Kurth Notes: Crew Chief: 15.0 967 PROJECT NAME: 2021 Street Improvements LOG OF TEST BORING PROJECT LOCATION: Prior Lake, Minnesota BORING NUMBER PB-06 PAGE 1 OF 1SURFACE ELEVATION: 982 ftCLIENT/WSB #: 013977-000 SAMPLE MC %No.TYPE DrillingOperationGEOLOGIC ORIGINUSCSDEPTH (ft) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 WLN % FinesGEOTECHNICAL N-PLOT - WSB.GDT - 10/10/19 09:57 - K:\013977-000\GEOTECH-CMT\PL 2021 ST IMP.GPJELEV. (ft) 981 980 979 978 977 976 975 974 973 972 971 970 969 968 967 966 965 964 963 962 961 960 959 958 957 956 955 954 953 952 951 ELEV. (ft) 981 980 979 978 977 976 975 974 973 972 971 970 969 968 967 966 965 964 963 962 961 960 959 958 957 956 955 954 953 952 951 DESCRIPTION OF MATERIAL 16 10 7 8 16 9 21 12 16 3 1/4" HSA 0' - 29.5' 15 1 2 3 4 5 6 7 8 9 10 HSA SB HSA SB HSA SB HSA SB HSA SB HSA SB HSA SB HSA SB HSA SB Pavement Section Glacial Till Glacial Outwash SC SP SP 7 24 8 10 10 9 9 8 21 8" BITUMINOUS ASPHALT 4.5" AGGREGATE BASE: Sand with Clay and Gravel, dark brown CLAYEY SAND, brown to gray, wet, soft to hard SAND, fine grained, brown, moist, loose SAND WITH GRAVEL, fine to medium grained, brown, moist, medium dense End of Boring 31.0 ft. N-Value Plot 140 28 TIME CASING DEPTH CAVE-IN DEPTH WATER DEPTH WATER ELEVATION WATER LEVEL MEASUREMENTS SAMPLED DEPTHDATE 29.5 133112:17 pm9/25/2019 METHOD START: 9/25/2019 END: 9/25/2019 Logged By: MWOR. Kurth Notes: Crew Chief: None PROJECT NAME: 2021 Street Improvements LOG OF TEST BORING PROJECT LOCATION: Prior Lake, Minnesota BORING NUMBER PB-07 PAGE 1 OF 1SURFACE ELEVATION: 978 ftCLIENT/WSB #: 013977-000 SAMPLE MC %No.TYPE DrillingOperationGEOLOGIC ORIGINUSCSDEPTH (ft) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 WLN % FinesGEOTECHNICAL N-PLOT - WSB.GDT - 10/10/19 09:57 - K:\013977-000\GEOTECH-CMT\PL 2021 ST IMP.GPJELEV. (ft) 977 976 975 974 973 972 971 970 969 968 967 966 965 964 963 962 961 960 959 958 957 956 955 954 953 952 951 950 949 948 947 ELEV. (ft) 977 976 975 974 973 972 971 970 969 968 967 966 965 964 963 962 961 960 959 958 957 956 955 954 953 952 951 950 949 948 947 DESCRIPTION OF MATERIAL 7 24 8 10 10 9 9 8 21 3 1/4" HSA 0' - 29.5' 1 2 3 4 5 6 7 8 9 10 HSA SB HSA SB HSA SB HSA SB HSA SB HSA SB HSA SB HSA SB HSA SB Pavement Section Glacial OutwashSP SP SP SP 27 20 15 2 27 68 44 18 25 6" BITUMINOUS ASPHALT 9" AGGREGATE BASE: Crushed LImestone: Silty Sand with Gravel, tan SAND WITH A LITTLE GRAVEL, fine grained, brown, medium dense SAND WITH A LITTLE GRAVEL, fine to medium grained, brown, medium dense to very loose SAND WITH GRAVEL, fine to medium grained, brown, moist, medium dense to very dense SAND, fine grained, brown, moist, medium dense End of Boring 31.0 ft. N-Value Plot 360 72 TIME CASING DEPTH CAVE-IN DEPTH WATER DEPTH WATER ELEVATION WATER LEVEL MEASUREMENTS SAMPLED DEPTHDATE 28.5 12311:15 pm9/25/2019 METHOD START: 9/25/2019 END: 9/25/2019 Logged By: MWOR. Kurth Notes: Crew Chief: None PROJECT NAME: 2021 Street Improvements LOG OF TEST BORING PROJECT LOCATION: Prior Lake, Minnesota BORING NUMBER PB-08 PAGE 1 OF 1SURFACE ELEVATION: 970 ftCLIENT/WSB #: 013977-000 SAMPLE MC %No.TYPE DrillingOperationGEOLOGIC ORIGINUSCSDEPTH (ft) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 WLN % FinesGEOTECHNICAL N-PLOT - WSB.GDT - 10/10/19 09:57 - K:\013977-000\GEOTECH-CMT\PL 2021 ST IMP.GPJELEV. (ft) 969 968 967 966 965 964 963 962 961 960 959 958 957 956 955 954 953 952 951 950 949 948 947 946 945 944 943 942 941 940 939 ELEV. (ft) 969 968 967 966 965 964 963 962 961 960 959 958 957 956 955 954 953 952 951 950 949 948 947 946 945 944 943 942 941 940 939 DESCRIPTION OF MATERIAL 27 20 15 2 27 68 44 18 25 3 1/4" HSA 0' - 29.5' 14 12 15 1 2 3 4 5 6 7 8 9 10 HSA SB HSA SB HSA SB HSA SB HSA SB HSA SB HSA SB HSA SB HSA SB Pavement Section Glacial Till Glacial Outwash CL CL CL CL SP SP 8 9 13 5 23 11 20 30 28 6.5" BITUMINOUS ASPHALT 10" AGGREGATE BASE: Crushed Limestone: Silty Sand with Gravel, tan LEAN CLAY WITH SAND, brown, moist, soft SILTY CLAY WITH SAND, lenses of Silty Sand, brown, moist, soft to firm LEAN CLAY WITH SAND, brown to gray, moist, soft SILTY CLAY, lenses of Silty Sand, brown, moist, hard SAND WITH GRAVEL, medium to fine grained, brown, moist, medium dense SAND, fine grained, brown, moist, medium dense End of Boring 31.0 ft. N-Value Plot 170 34 TIME CASING DEPTH CAVE-IN DEPTH WATER DEPTH WATER ELEVATION WATER LEVEL MEASUREMENTS SAMPLED DEPTHDATE 29.5312:07 pm9/25/2019 METHOD START: 9/25/2019 END: 9/25/2019 Logged By: MWOR. Kurth Notes: Crew Chief: None PROJECT NAME: 2021 Street Improvements LOG OF TEST BORING PROJECT LOCATION: Prior Lake, Minnesota BORING NUMBER PB-09 PAGE 1 OF 1SURFACE ELEVATION: 958 ftCLIENT/WSB #: 013977-000 SAMPLE MC %No.TYPE DrillingOperationGEOLOGIC ORIGINUSCSDEPTH (ft) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 WLN % FinesGEOTECHNICAL N-PLOT - WSB.GDT - 10/10/19 09:57 - K:\013977-000\GEOTECH-CMT\PL 2021 ST IMP.GPJELEV. (ft) 957 956 955 954 953 952 951 950 949 948 947 946 945 944 943 942 941 940 939 938 937 936 935 934 933 932 931 930 929 928 927 ELEV. (ft) 957 956 955 954 953 952 951 950 949 948 947 946 945 944 943 942 941 940 939 938 937 936 935 934 933 932 931 930 929 928 927 DESCRIPTION OF MATERIAL 8 9 13 5 23 11 20 30 28 3 1/4" HSA 0' - 19.5' 14 1 2 3 4 5 6 7 8 HSA SB HSA SB HSA SB HSA SB HSA SB HSA SB HSA SB Pavement Section Glacial Till Glacial Outwash CL SP SP-SM 14 15 12 8 13 16 30 8" BITUMINOUS ASPHALT 4.5" AGGREGATE BASE: Crushed Limestone: Silty Sand with Gravel, tan LEAN CLAY WITH SAND, brown to gray, moist, firm SAND WITH GRAVEL, fine to medium grained, brown, moist, medium dense to loose to medium dense SAND WITH SILT AND GRAVEL, fine to medium grained, brown, moist, dense End of Boring 21.0 ft. N-Value Plot 170 34 TIME CASING DEPTH CAVE-IN DEPTH WATER DEPTH WATER ELEVATION WATER LEVEL MEASUREMENTS SAMPLED DEPTHDATE 19.5 102111:25 am9/27/2019 METHOD START: 9/27/2019 END: 9/27/2019 Logged By: MWOR. Kurth Notes: Crew Chief: None PROJECT NAME: 2021 Street Improvements LOG OF TEST BORING PROJECT LOCATION: Prior Lake, Minnesota BORING NUMBER PB-10 PAGE 1 OF 1SURFACE ELEVATION: 984 ftCLIENT/WSB #: 013977-000 SAMPLE MC %No.TYPE DrillingOperationGEOLOGIC ORIGINUSCSDEPTH (ft) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 WLN % FinesGEOTECHNICAL N-PLOT - WSB.GDT - 10/10/19 09:57 - K:\013977-000\GEOTECH-CMT\PL 2021 ST IMP.GPJELEV. (ft) 983 982 981 980 979 978 977 976 975 974 973 972 971 970 969 968 967 966 965 964 963 ELEV. (ft) 983 982 981 980 979 978 977 976 975 974 973 972 971 970 969 968 967 966 965 964 963 DESCRIPTION OF MATERIAL 14 15 12 8 13 16 30 3 1/4" HSA 0' - 19.5' 14 18 14 11 1 2 3 4 5 6 7 8 HSA SB HSA SB HSA SB HSA SB HSA SB HSA SB HSA SB Pavement Section Glacial Till Glacial Outwash CL SP 9 9 18 17 13 19 16 3" BITUMINOUS ASPHALT 5.5" AGGREGATE BASE: Sand with Gravel, brown LEAN CLAY WITH SAND, brown, moist, firm to hard SAND, fine grained, brown, moist, medium dense End of Boring 21.0 ft. N-Value Plot 11.50 23 TIME CASING DEPTH CAVE-IN DEPTH WATER DEPTH WATER ELEVATION WATER LEVEL MEASUREMENTS SAMPLED DEPTHDATE 19.5 14211:46 pm9/26/2019 METHOD START: 9/26/2019 END: 9/26/2019 Logged By: MWOR. Kurth Notes: Crew Chief: None PROJECT NAME: 2021 Street Improvements LOG OF TEST BORING PROJECT LOCATION: Prior Lake, Minnesota BORING NUMBER PB-11 PAGE 1 OF 1SURFACE ELEVATION: 996 ftCLIENT/WSB #: 013977-000 SAMPLE MC %No.TYPE DrillingOperationGEOLOGIC ORIGINUSCSDEPTH (ft) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 WLN % FinesGEOTECHNICAL N-PLOT - WSB.GDT - 10/10/19 09:57 - K:\013977-000\GEOTECH-CMT\PL 2021 ST IMP.GPJELEV. (ft) 995 994 993 992 991 990 989 988 987 986 985 984 983 982 981 980 979 978 977 976 975 ELEV. (ft) 995 994 993 992 991 990 989 988 987 986 985 984 983 982 981 980 979 978 977 976 975 DESCRIPTION OF MATERIAL 9 9 18 17 13 19 16 3 1/4" HSA 0' - 19.5' 17 15 1 2 3 4 5 6 7 8 HSA SB HSA SB HSA SB HSA SB HSA SB HSA SB HSA SB Pavement Section Fill Glacial Till Glacial Outwash Fill CL SP SP 15 10 16 6 10 12 24 4" BITUMINOUS ASPHALT 7" AGGREGATE BASE: Crushed Limestone: Silty Sand with Gravel, reddish brown FILL, Lean Clay with Sand, grayish brown, moist LEAN CLAY WITH SAND, brown, moist, firm to hard SAND, fine to medium grained, brown, moist, loose to medium dense SAND, fine grained, brown, moist, medium dense End of Boring 21.0 ft. N-Value Plot 140 28 TIME CASING DEPTH CAVE-IN DEPTH WATER DEPTH WATER ELEVATION WATER LEVEL MEASUREMENTS SAMPLED DEPTHDATE 19.5 12211:15 pm9/27/2019 METHOD START: 9/27/2019 END: 9/27/2019 Logged By: MWOR. Kurth Notes: Crew Chief: None PROJECT NAME: 2021 Street Improvements LOG OF TEST BORING PROJECT LOCATION: Prior Lake, Minnesota BORING NUMBER PB-12 PAGE 1 OF 1SURFACE ELEVATION: 972 ftCLIENT/WSB #: 013977-000 SAMPLE MC %No.TYPE DrillingOperationGEOLOGIC ORIGINUSCSDEPTH (ft) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 WLN % FinesGEOTECHNICAL N-PLOT - WSB.GDT - 10/10/19 09:57 - K:\013977-000\GEOTECH-CMT\PL 2021 ST IMP.GPJELEV. (ft) 971 970 969 968 967 966 965 964 963 962 961 960 959 958 957 956 955 954 953 952 951 ELEV. (ft) 971 970 969 968 967 966 965 964 963 962 961 960 959 958 957 956 955 954 953 952 951 DESCRIPTION OF MATERIAL 15 10 16 6 10 12 24 3 1/4" HSA 0' - 19.5' 15 15 16 35 17 1 2 3 4 5 6 7 8 HSA SB HSA SB HSA SB HSA SB HSA SB HSA SB HSA SB Pavement Section Fill Glacial Till Fill Fill CL CL 8 8 9 16 4 11 27 4.5" BITUMINOUS ASPHALT 8.5" AGGREGATE BASE: Crushed Limestone: Silty Sand with Gravel, reddish brown FILL, Silty Clay and Lean Clay with Sand, brown to gray to dark gray, moist FILL, Lean Clay with Sand, gray, moist SILTY CLAY, brown, wet, very soft SANDY LEAN CLAY, brown to reddish brown, moist, firm to hard End of Boring 21.0 ft. N-Value Plot 15.50 31 TIME CASING DEPTH CAVE-IN DEPTH WATER DEPTH WATER ELEVATION WATER LEVEL MEASUREMENTS SAMPLED DEPTHDATE 19.5 142112:10 pm9/27/2019 METHOD START: 9/27/2019 END: 9/27/2019 Logged By: MWOR. Kurth Notes: Crew Chief: None PROJECT NAME: 2021 Street Improvements LOG OF TEST BORING PROJECT LOCATION: Prior Lake, Minnesota BORING NUMBER PB-13 PAGE 1 OF 1SURFACE ELEVATION: 991 ftCLIENT/WSB #: 013977-000 SAMPLE MC %No.TYPE DrillingOperationGEOLOGIC ORIGINUSCSDEPTH (ft) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 WLN % FinesGEOTECHNICAL N-PLOT - WSB.GDT - 10/10/19 09:57 - K:\013977-000\GEOTECH-CMT\PL 2021 ST IMP.GPJELEV. (ft) 990 989 988 987 986 985 984 983 982 981 980 979 978 977 976 975 974 973 972 971 970 ELEV. (ft) 990 989 988 987 986 985 984 983 982 981 980 979 978 977 976 975 974 973 972 971 970 DESCRIPTION OF MATERIAL 8 8 9 16 4 11 27 3 1/4" HSA 0' - 19.5' 15 16 16 17 15 1 2 3 4 5 6 7 8 HSA SB HSA SB HSA SB HSA SB HSA SB HSA SB HSA SB Pavement Section Glacial Till Glacial Outwash Glacial Till CL SM CL CL 12 8 9 10 12 10 10 4" BITUMINOUS ASPHALT 8" AGGREGATE BASE: Sand with Gravel, brown LEAN CLAY WITH SAND, brown to gray, moist, soft to firm SILTY SAND, fine grained, gray, moist, medium dense LEAN CLAY, brown, moist, firm LEAN CLAY WITH SAND, brown to gray, moist, firm End of Boring 21.0 ft. N-Value Plot 80 16 TIME CASING DEPTH CAVE-IN DEPTH WATER DEPTH WATER ELEVATION WATER LEVEL MEASUREMENTS SAMPLED DEPTHDATE 19.5211:00 pm9/26/2019 METHOD START: 9/26/2019 END: 9/26/2019 Logged By: MWOR. Kurth Notes: Crew Chief: None PROJECT NAME: 2021 Street Improvements LOG OF TEST BORING PROJECT LOCATION: Prior Lake, Minnesota BORING NUMBER PB-14 PAGE 1 OF 1SURFACE ELEVATION: 946 ftCLIENT/WSB #: 013977-000 SAMPLE MC %No.TYPE DrillingOperationGEOLOGIC ORIGINUSCSDEPTH (ft) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 WLN % FinesGEOTECHNICAL N-PLOT - WSB.GDT - 10/10/19 09:57 - K:\013977-000\GEOTECH-CMT\PL 2021 ST IMP.GPJELEV. (ft) 945 944 943 942 941 940 939 938 937 936 935 934 933 932 931 930 929 928 927 926 925 ELEV. (ft) 945 944 943 942 941 940 939 938 937 936 935 934 933 932 931 930 929 928 927 926 925 DESCRIPTION OF MATERIAL 12 8 9 10 12 10 10 3 1/4" HSA 0' - 19.5' 12 15 18 12 1 2 3 4 5 6 7 8 HSA SB HSA SB HSA SB HSA SB HSA SB HSA SB HSA SB Pavement Section Glacial Till Glacial Outwash Glacial Till Glacial Outwash Glacial Till SM SM SC SM CL 11 5 6 13 18 21 24 6" BITUMINOUS ASPHALT 6" AGGREGATE BASE: Crushed LImestone: Silty Sand, light brown SILTY SAND WITH CLAY, brown, moist, medium dense to loose SILTY SAND, fine grained, brown, wet, medium dense CLAYEY SAND, fine to medium grained, brown, wet, hard SILTY SAND, fine grained, brown, wet, medium dense LEAN CLAY WITH SAND, dark gray, moist, hard End of Boring 21.0 ft. N-Value Plot 140 28 TIME CASING DEPTH CAVE-IN DEPTH WATER DEPTH WATER ELEVATION WATER LEVEL MEASUREMENTS SAMPLED DEPTHDATE 19.5 122112:20 pm9/26/2019 METHOD START: 9/26/2019 END: 9/26/2019 Logged By: MWOR. Kurth Notes: Crew Chief: None PROJECT NAME: 2021 Street Improvements LOG OF TEST BORING PROJECT LOCATION: Prior Lake, Minnesota BORING NUMBER PB-15 PAGE 1 OF 1SURFACE ELEVATION: 990 ftCLIENT/WSB #: 013977-000 SAMPLE MC %No.TYPE DrillingOperationGEOLOGIC ORIGINUSCSDEPTH (ft) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 WLN % FinesGEOTECHNICAL N-PLOT - WSB.GDT - 10/10/19 09:57 - K:\013977-000\GEOTECH-CMT\PL 2021 ST IMP.GPJELEV. (ft) 989 988 987 986 985 984 983 982 981 980 979 978 977 976 975 974 973 972 971 970 969 ELEV. (ft) 989 988 987 986 985 984 983 982 981 980 979 978 977 976 975 974 973 972 971 970 969 DESCRIPTION OF MATERIAL 11 5 6 13 18 21 24 3 1/4" HSA 0' - 29.5' 20 15 15 16 1 2 3 4 5 6 7 8 9 10 HSA SB HSA SB HSA SB HSA SB HSA SB HSA SB HSA SB HSA SB HSA SB Pavement Section Glacial Till Glacial Outwash CL CL SP 9 9 15 12 11 11 14 14 16 7" BITUMINOUS ASPHALT 5" AGGREGATE BASE: Silty Sand, brown LEAN CLAY WITH A LITTLE SAND, brown, moist, soft LEAN CLAY WITH SAND AND A LITTLE GRAVEL, brown to gray, moist, soft to firm to hard SAND, fine grained, brown, moist, medium dense End of Boring 31.0 ft. N-Value Plot 100 20 TIME CASING DEPTH CAVE-IN DEPTH WATER DEPTH WATER ELEVATION WATER LEVEL MEASUREMENTS SAMPLED DEPTHDATE 29.5 19313:15 pm9/25/2019 METHOD START: 9/25/2019 END: 9/25/2019 Logged By: MWOR. Kurth Notes: Crew Chief: None PROJECT NAME: 2021 Street Improvements LOG OF TEST BORING PROJECT LOCATION: Prior Lake, Minnesota BORING NUMBER PB-16 PAGE 1 OF 1SURFACE ELEVATION: 984 ftCLIENT/WSB #: 013977-000 SAMPLE MC %No.TYPE DrillingOperationGEOLOGIC ORIGINUSCSDEPTH (ft) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 WLN % FinesGEOTECHNICAL N-PLOT - WSB.GDT - 10/10/19 09:57 - K:\013977-000\GEOTECH-CMT\PL 2021 ST IMP.GPJELEV. (ft) 983 982 981 980 979 978 977 976 975 974 973 972 971 970 969 968 967 966 965 964 963 962 961 960 959 958 957 956 955 954 953 ELEV. (ft) 983 982 981 980 979 978 977 976 975 974 973 972 971 970 969 968 967 966 965 964 963 962 961 960 959 958 957 956 955 954 953 DESCRIPTION OF MATERIAL 9 9 15 12 11 11 14 14 16 3 1/4" HSA 0' - 29.5' 15 15 14 13 11 1 2 3 4 5 6 7 8 9 10 HSA SB HSA SB HSA SB HSA SB HSA SB HSA SB HSA SB HSA SB HSA SB Pavement Section Glacial Till Glacial Outwash CL CL SP 12 14 14 22 17 34 40 95 28 6" BITUMINOUS ASPHALT 4.5" AGGREGATE BASE: Sand with Silt and Gravel, brown SANDY CLAY WITH GRAVEL, brown and gray, moist, firm to hard - brown SANDY CLAY WITH GRAVEL, brown to dark brown, moist, very hard SAND, fine grained, brown, moist, medium dense End of Boring 31.0 ft. N-Value Plot 49.50 99 TIME CASING DEPTH CAVE-IN DEPTH WATER DEPTH WATER ELEVATION WATER LEVEL MEASUREMENTS SAMPLED DEPTHDATE 29.5 15314:10 pm9/25/2019 METHOD START: 9/25/2019 END: 9/25/2019 Logged By: MWOR. Kurth Notes: Crew Chief: None PROJECT NAME: 2021 Street Improvements LOG OF TEST BORING PROJECT LOCATION: Prior Lake, Minnesota BORING NUMBER PB-17 PAGE 1 OF 1SURFACE ELEVATION: 982 ftCLIENT/WSB #: 013977-000 SAMPLE MC %No.TYPE DrillingOperationGEOLOGIC ORIGINUSCSDEPTH (ft) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 WLN % FinesGEOTECHNICAL N-PLOT - WSB.GDT - 10/10/19 09:57 - K:\013977-000\GEOTECH-CMT\PL 2021 ST IMP.GPJELEV. (ft) 981 980 979 978 977 976 975 974 973 972 971 970 969 968 967 966 965 964 963 962 961 960 959 958 957 956 955 954 953 952 951 ELEV. (ft) 981 980 979 978 977 976 975 974 973 972 971 970 969 968 967 966 965 964 963 962 961 960 959 958 957 956 955 954 953 952 951 DESCRIPTION OF MATERIAL 12 14 14 22 17 34 40 95 28 3 1/4" HSA 0' - 29.5' 16 17 17 16 1 2 3 4 5 6 7 8 9 10 HSA SB HSA SB HSA SB HSA SB HSA SB HSA SB HSA SB HSA SB HSA SB Pavement Section Fill Glacial Till Glacial Outwash Fill CL SP-SM SP 14 8 24 11 14 14 15 16 27 6" BITUMINOUS ASPHALT 8" AGGREGATE BASE: Sand with Silt and Gravel, dark brown FILL, Lean Clay with Sand, brown and gray and reddish brown, moist LEAN CLAY WITH SAND, brown to reddish brown, moist, firm SAND WITH SILT AND GRAVEL, fine grained, brown, moist, medium dense SAND, fine grained, brown, moist, medium dense to dense End of Boring 31.0 ft. N-Value Plot 15.50 31 TIME CASING DEPTH CAVE-IN DEPTH WATER DEPTH WATER ELEVATION WATER LEVEL MEASUREMENTS SAMPLED DEPTHDATE 29.5 203111:45 am9/26/2019 METHOD START: 9/26/2019 END: 9/26/2019 Logged By: MWOR. Kurth Notes: Crew Chief: None PROJECT NAME: 2021 Street Improvements LOG OF TEST BORING PROJECT LOCATION: Prior Lake, Minnesota BORING NUMBER PB-18 PAGE 1 OF 1SURFACE ELEVATION: 980 ftCLIENT/WSB #: 013977-000 SAMPLE MC %No.TYPE DrillingOperationGEOLOGIC ORIGINUSCSDEPTH (ft) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 WLN % FinesGEOTECHNICAL N-PLOT - WSB.GDT - 10/10/19 09:57 - K:\013977-000\GEOTECH-CMT\PL 2021 ST IMP.GPJELEV. (ft) 979 978 977 976 975 974 973 972 971 970 969 968 967 966 965 964 963 962 961 960 959 958 957 956 955 954 953 952 951 950 949 ELEV. (ft) 979 978 977 976 975 974 973 972 971 970 969 968 967 966 965 964 963 962 961 960 959 958 957 956 955 954 953 952 951 950 949 DESCRIPTION OF MATERIAL 14 8 24 11 14 14 15 16 27 Feasibility Report Fish Point Road (CSAH 44 to TH 13) Reconstruction Project TRN#20-000001 City of Prior Lake WSB Project No. R-13977-000 APPENDIX C Phase 1 Opinion of Probable Cost Phase 2 Opinion of Probable Cost WSB Project:2021 Street Reconstruction Project Design By:LME Project Location:City of Prior Lake, MN Checked By:EAB City Project No.: WSB Project No:013977-000 Date:9/2/2020 Item No. MnDOT Specification No. Description Unit Estimated Total Quantity Estimated Unit Price Estimated Total Cost 1 2021.501 MOBILIZATION LS 1.0 149,000.00$ 149,000.00$ 2 2101.505 CLEARING ACRE 0.5 50,000.00$ 25,000.00$ 3 2101.505 GRUBBING ACRE 0.5 50,000.00$ 25,000.00$ 4 2104.502 REMOVE SIGN EACH 8 50.00$ 400.00$ 5 2104.502 REMOVE MAIL BOX SUPPORT EACH 58 50.00$ 2,900.00$ 6 2104.503 SAWING CONCRETE PAVEMENT (FULL DEPTH) L F 315 5.00$ 1,575.00$ 7 2104.503 SAWING BIT PAVEMENT (FULL DEPTH) L F 1310 3.00$ 3,930.00$ 8 2104.503 REMOVE CURB & GUTTER L F 7460 8.00$ 59,680.00$ 9 2104.503 REMOVE WOOD FENCE L F 20 50.00$ 1,000.00$ 10 2104.504 REMOVE CONCRETE DRIVEWAY PAVEMENT S Y 413 18.00$ 7,434.00$ 11 2104.504 REMOVE BITUMINOUS DRIVEWAY PAVEMENT S Y 1295 12.00$ 15,540.00$ 12 2215.504 REMOVE BITUMINOUS PAVEMENT S Y 11898 3.00$ 35,694.00$ 13 2104.601 SALVAGE AND REINSTALL LANDSCAPE STRUCTURES LS 1 10,000.00$ 10,000.00$ 14 2106.507 EXCAVATION - COMMON C Y 2309 20.00$ 46,180.00$ 15 2106.507 EXCAVATION - SUBGRADE C Y 9479 23.00$ 218,017.00$ 16 2106.507 SELECT GRANULAR EMBANKMENT (CV) C Y 9479 19.00$ 180,101.00$ 17 2106.507 STABILIZING AGGREGATE C Y 450 25.00$ 11,250.00$ 18 2123.610 STREET SWEEPER (WITH PICKUP BROOM) HOUR 50 150.00$ 7,500.00$ 19 2130.523 WATER MGAL 250 50.00$ 12,500.00$ 20 2123.610 UTILITY CREW HOUR 50 100.00$ 5,000.00$ 21 2211.507 AGGREGATE BASE CLASS 5 CY 2288 33.00$ 75,504.00$ 22 2211.607 CRUSHED ROCK C Y 10 20.00$ 200.00$ 23 2360.504 TYPE SP 9.5 WEAR CRS MIX(2,C)3.0" THICK S Y 1295 45.00$ 58,275.00$ 24 2360.509 TYPE SP 12.5 WEARING COURSE MIX (3,C) TON 1059 75.00$ 79,425.00$ 25 2360.509 TYPE SP 12.5 NON WEAR COURSE MIX (3,C) TON 1765 73.00$ 128,845.00$ 26 2504.602 IRRIGATION SYSTEM REPAIR EACH 55 250.00$ 13,750.00$ 27 2531.503 CONCRETE CURB & GUTTER DESIGN B618 L F 7460 20.00$ 149,200.00$ 28 2531.504 7" CONCRETE DRIVEWAY PAVEMENT S Y 413 75.00$ 30,975.00$ 29 2540.602 MAIL BOX EACH 57 35.00$ 1,995.00$ 30 2540.602 MAIL BOX SUPPORT EACH 57 60.00$ 3,420.00$ 31 2540.602 TEMPORARY MAIL BOX EACH 57 40.00$ 2,280.00$ 32 2557.603 WOODEN FENCE L F 20 300.00$ 6,000.00$ 33 2563.601 TRAFFIC CONTROL LS 1 40,000.00$ 40,000.00$ 34 2564.518 SIGN PANELS TYPE C S F 38 25.00$ 950.00$ 35 2564.602 SIGN PANELS TYPE SPECIAL EACH 6 300.00$ 1,800.00$ 36 2572.503 CLEAN ROOT CUTTING L F 50 100.00$ 5,000.00$ 37 2572.510 PRUNE TREES HOUR 50 100.00$ 5,000.00$ 38 2573.501 STABILIZED CONSTRUCTION EXIT LS 1 5,000.00$ 5,000.00$ 39 2573.502 STORM DRAIN INLET PROTECTION EACH 16 150.00$ 2,400.00$ 40 2573.503 SILT FENCE, TYPE MS L F 1000 3.00$ 3,000.00$ 41 2573.503 SEDIMENT CONTROL LOG TYPE WOOD FIBER L F 2000 3.00$ 6,000.00$ 42 2574.507 COMMON TOPSOIL BORROW C Y 114 30.00$ 3,420.00$ 43 2575.504 SODDING TYPE LAWN S Y 4145 5.00$ 20,725.00$ 44 2575.504 EROSION CONTROL BLANKETS CATEGORY 3 S Y 1500 5.00$ 7,500.00$ 45 2575.508 HYDRAULIC MULCH MATRIX LB 1000 3.00$ 3,000.00$ 46 2572.506 WATER GAL 100 50.00$ 5,000.00$ 47 2575.523 RAPID STABILIZATION METHOD 3 MGAL 1000 3.00$ 3,000.00$ CONSTRUCTION TOTAL 1,479,365.00$ CONTINGENCY TOTAL (10%) 147,936.50$ SUBTOTAL 1,627,301.50$ INDIRECT COST TOTAL (28%) 455,644.42$ TOTAL 2,082,945.92$ OPINION OF PROBABLE COST A. STREET IMPROVEMENTS (LOCAL) WSB Project:2021 Street Reconstruction Project Design By:LME Project Location:City of Prior Lake, MN Checked By:EAB City Project No.: WSB Project No:013977-000 Date:9/2/2020 Item No. MnDOT Specification No. Description Unit Estimated Total Quantity Estimated Unit Price Estimated Total Cost OPINION OF PROBABLE COST A. STREET IMPROVEMENTS (LOCAL) 48 2104.502 REMOVE DRAINAGE STRUCTURE EACH 9 500.00$ 4,500.00$ 49 2104.503 REMOVE SEWER PIPE (STORM) L F 192 20.00$ 3,840.00$ 50 2502.503 4" PERF PE PIPE DRAIN L F 7376 25.00$ 184,400.00$ 51 2502.602 4" PVC PIPE DRAIN CLEANOUT EACH 41 500.00$ 20,500.00$ 52 2503.503 12" RC PIPE SEWER DES 3006 CL V L F 78 42.00$ 3,276.00$ 53 2503.503 15" RC PIPE SEWER DES 3006 CL V L F 371 45.00$ 16,695.00$ 54 2503.602 CONNECT TO EXISTING STORM SEWER EACH 7 2,000.00$ 14,000.00$ 55 2503.603 LINING SEWER PIPE 12"L F 215 50.00$ 10,750.00$ 56 2503.603 LINING SEWER PIPE 15"L F 185 60.00$ 11,100.00$ 57 2504.604 4" POLYSTYRENE INSULATION S Y 43 45.00$ 1,935.00$ 58 2506.602 CONST DRAINAGE STRUCTURE DESIGN SPEC (2'X3') EACH 5 2,500.00$ 12,500.00$ 59 2506.603 CONST DRAINAGE STRUCTURE DESIGN 48-4020 L F 48 550.00$ 26,400.00$ 60 2506.603 CONST DRAINAGE STRUCTURE DESIGN 60-4020 L F 7 650.00$ 4,550.00$ CONSTRUCTION TOTAL 283,496.00$ CONTINGENCY TOTAL (10%) 28,349.60$ SUBTOTAL 311,845.60$ INDIRECT COST TOTAL (28%) 87,316.77$ TOTAL 399,162.37$ 59 2104.502 REMOVE CASTING EACH 6 200.00$ 1,200.00$ 60 2104.502 REMOVE MANHOLE EACH 9 500.00$ 4,500.00$ 61 2104.503 REMOVE SANITARY SERVICE PIPE L F 1710 10.00$ 17,100.00$ 62 2104.503 REMOVE SEWER PIPE (SANITARY) L F 1365 20.00$ 27,300.00$ 63 2503.602 CONNECT TO EXISTING SANITARY SEWER SER EACH 57 1,500.00$ 85,500.00$ 64 2503.603 4" PVC PIPE SEWER L F 1920 25.00$ 48,000.00$ 65 2503.603 8" PVC PIPE SEWER L F 1365 60.00$ 81,900.00$ 66 2503.603 LINING SEWER PIPE 8"L F 2002 40.00$ 80,080.00$ 67 2506.502 CASTING ASSEMBLY EACH 14 800.00$ 11,200.00$ 68 2506.502 ADJUST FRAME & RING CASTING EACH 8 700.00$ 5,600.00$ 69 2506.602 CHIMNEY SEAL EACH 20 300.00$ 6,000.00$ 70 2506.603 CONSTRUCT 48" SAN MANHOLE L F 101 400.00$ 40,400.00$ CONSTRUCTION TOTAL 408,780.00$ CONTINGENCY TOTAL (10%) 40,878.00$ SUBTOTAL 449,658.00$ INDIRECT COST TOTAL (28%) 125,904.24$ TOTAL 575,562.24$ 71 2104.502 REMOVE GATE VALVE & BOX EACH 20 80.00$ 1,600.00$ 72 2104.502 REMOVE CURB STOP & BOX EACH 57 50.00$ 2,850.00$ 73 2104.502 REMOVE HYDRANT EACH 9 200.00$ 1,800.00$ 74 2104.503 REMOVE WATER MAIN L F 3295 8.00$ 26,360.00$ 75 2104.503 REMOVE WATER SERVICE PIPE L F 1710 6.00$ 10,260.00$ 76 2105.601 DEWATERING LS 1 25,000.00$ 25,000.00$ 77 2504.601 TEMPORARY WATER SERVICE LS 1 25,000.00$ 25,000.00$ 78 2504.602 CONNECT TO EXISTING WATER MAIN EACH 2 1,500.00$ 3,000.00$ 79 2504.602 CONNECT TO EXISTING WATER SERVICE EACH 57 1,500.00$ 85,500.00$ 80 2504.602 HYDRANT EACH 9 7,000.00$ 63,000.00$ 81 2504.602 1" CORPORATION STOP EACH 64 600.00$ 38,400.00$ 82 2504.602 6" GATE VALVE & BOX EACH 9 1,600.00$ 14,400.00$ 83 2504.602 8" GATE VALVE & BOX EACH 20 2,000.00$ 40,000.00$ 84 2504.602 1" CURB STOP & BOX EACH 64 350.00$ 22,400.00$ 85 2504.603 1" TYPE PE PIPE L F 1920 40.00$ 76,800.00$ D. WATERMAIN IMPROVEMENTS (LOCAL) C. SANITARY SEWER IMPROVEMENTS (LOCAL) B. DRAINAGE IMPROVEMENTS (LOCAL) WSB Project:2021 Street Reconstruction Project Design By:LME Project Location:City of Prior Lake, MN Checked By:EAB City Project No.: WSB Project No:013977-000 Date:9/2/2020 Item No. MnDOT Specification No. Description Unit Estimated Total Quantity Estimated Unit Price Estimated Total Cost OPINION OF PROBABLE COST A. STREET IMPROVEMENTS (LOCAL)86 2504.603 6" C900 PVC WATERMAIN L F 135 40.00$ 5,400.00$ 87 2504.603 8" C900 PVC WATERMAIN L F 3295 50.00$ 164,750.00$ 88 2504.608 DUCTILE IRON FITTINGS LB 2000 8.00$ 16,000.00$ CONSTRUCTION TOTAL 622,520.00$ CONTINGENCY TOTAL (10%) 62,252.00$ SUBTOTAL 684,772.00$ INDIRECT COST TOTAL (28%) 191,736.16$ TOTAL 876,508.16$ 89 2545.502 LIGHTING UNIT TYPE SPECIAL EACH 14 2,500.00$ 35,000.00$ CONSTRUCTION TOTAL 35,000.00$ CONTINGENCY TOTAL (10%) 3,500.00$ SUBTOTAL 38,500.00$ INDIRECT COST TOTAL (28%) 10,780.00$ TOTAL 49,280.00$ 90 2104.503 REMOVE RETAINING WALL L F 564 15.00$ 8,460.00$ 91 2105.504 GEOTEXTILE FABRIC TYPE 7 S Y 498 20.00$ 9,960.00$ 92 2106.507 EXCAVATION - COMMON C Y 173 18.00$ 3,114.00$ 93 2106.507 SELECT GRANULAR EMBANKMENT (CV) C Y 239 18.00$ 4,302.00$ 94 2402.503 ORNAMENTAL METAIL RAILING L F 490 250.00$ 122,500.00$ 95 2411.604 MODULAR BLOCK RETAINING WALL S F 2238 55.00$ 123,090.00$ 96 2451.507 COARSE FILTER AGGREGATE (CV) C Y 83 18.00$ 4,095.00$ 97 2502.503 4" PERF TP PIPE DRAIN L F 564 25.00$ 14,100.00$ CONSTRUCTION TOTAL 289,621.00$ CONTINGENCY TOTAL (10%) 28,962.10$ SUBTOTAL 318,583.10$ INDIRECT COST TOTAL (28%) 89,203.27$ TOTAL 407,786.37$ GRAND TOTAL (LOCAL) 4,391,245.06$ E. LIGHTING IMPROVEMENTS (LOCAL) F. RETAINING WALL IMPROVEMENTS (LOCAL) WSB Project:2021 Street Reconstruction Project Design By:LME Project Location:City of Prior Lake, MN Checked By:EAB City Project No.: WSB Project No:013977-000 Date:9/3/2020 Item No. MnDOT Specification No. Description Unit Estimated Total Quantity Estimated Unit Price Estimated Total Cost 1 2021.501 MOBILIZATION LS 1 157,913.60$ 157,913.60$ 2 2101.505 CLEARING ACRE 0.6 54,080.00$ 32,448.00$ 3 2101.505 GRUBBING ACRE 0.6 54,080.00$ 32,448.00$ 4 2104.502 REMOVE SIGN EACH 64 54.08$ 3,461.12$ 5 2104.502 REMOVE MAIL BOX SUPPORT EACH 20 54.08$ 1,081.60$ 6 2104.503 SAWING CONCRETE PAVEMENT (FULL DEPTH) L F 331 5.41$ 1,790.05$ 7 2104.503 SAWING BIT PAVEMENT (FULL DEPTH) L F 375 3.24$ 1,216.80$ 8 2104.503 REMOVE CURB & GUTTER L F 4100 8.65$ 35,476.48$ 9 2104.503 REMOVE FENCE L F 75 54.08$ 4,056.00$ 10 2104.504 REMOVE CONCRETE DRIVEWAY PAVEMENT S Y 609 19.47$ 11,856.50$ 11 2104.504 REMOVE BITUMINOUS DRIVEWAY PAVEMENT S Y 247 12.98$ 3,205.86$ 12 2215.504 REMOVE BITUMINOUS PAVEMENT S Y 9389 3.24$ 30,465.43$ 13 2104.518 REMOVE SIDEWALK S F 12300 7.57$ 93,125.76$ 14 2104.518 REMOVE CONCRETE MEDIAN S F 1122 7.57$ 8,494.89$ 15 2104.601 SALVAGE AND REINSTALL LANDSCAPE STRUCTURES LS 1.0 27,040.00$ 27,040.00$ 16 2104.601 SALVAGE FLASHER SYSTEM LS 1 16,224.00$ 16,224.00$ 17 2106.507 EXCAVATION - COMMON C Y 1473 21.63$ 31,863.94$ 18 2106.507 EXCAVATION - SUBGRADE C Y 3881 27.04$ 104,942.24$ 19 2106.507 SELECT GRANULAR EMBANKMENT (CV) C Y 3611 21.63$ 78,113.15$ 20 2106.507 STABILIZING AGGREGATE C Y 100 27.04$ 2,704.00$ 21 2123.610 STREET SWEEPER (WITH PICKUP BROOM) HOUR 6 162.24$ 973.44$ 22 2130.523 WATER MGAL 60 54.08$ 3,244.80$ 23 2123.610 UTILITY CREW HOUR 6 108.16$ 648.96$ 24 2211.507 AGGREGATE BASE CLASS 5 CY 3536 37.86$ 133,858.82$ 25 2211.607 CRUSHED ROCK C Y 30 21.63$ 648.96$ 26 2360.504 TYPE SP 9.5 WEAR CRS MIX(2,C)3.0" THICK S Y 247 48.67$ 12,021.98$ 27 2360.509 TYPE SP 12.5 WEARING COURSE MIX (3,C) TON 1114 81.12$ 90,367.68$ 28 2360.509 TYPE SP 12.5 NON WEAR COURSE MIX (3,C) TON 2228 81.12$ 180,735.36$ 29 2504.602 IRRIGATION SYSTEM REPAIR EACH 15 270.40$ 4,056.00$ 30 2521.518 4" CONCRETE WALK S F 9868 10.82$ 106,732.29$ 31 2521.518 6" CONCRETE WALK S F 1155 12.98$ 14,990.98$ 32 2531.503 CONCRETE CURB & GUTTER DESIGN B618 L F 4234 21.63$ 91,589.89$ 33 2531.504 CONCRETE MEDIAN S Y 93 54.08$ 5,029.44$ 34 2531.504 6" CONCRETE DRIVEWAY PAVEMENT S Y 640 81.12$ 51,916.80$ 35 2531.618 TRUNCATED DOMES S F 88 21.63$ 1,903.62$ 36 2540.602 MAIL BOX EACH 20 37.86$ 757.12$ 37 2540.602 MAIL BOX SUPPORT EACH 30 64.90$ 1,946.88$ 38 2540.602 TEMPORARY MAIL BOX EACH 30 43.26$ 1,297.92$ 39 2557.603 WOODEN FENCE L F 75 324.48$ 24,336.00$ 40 2563.601 TRAFFIC CONTROL LS 1 54,080.00$ 54,080.00$ 41 2563.601 DRIVER FEEDBACK SIGN - ELECTRICAL WORK LS 1 10,816.00$ 10,816.00$ 42 2563.602 DRIVER FEEDBACK SIGNS EACH 1 16,224.00$ 16,224.00$ 43 2564.518 SIGN PANELS TYPE C S F 147 27.04$ 3,974.88$ 44 2564.602 SIGN PANELS TYPE SPECIAL EACH 6 324.48$ 1,946.88$ 45 2572.503 CLEAN ROOT CUTTING L F 10 108.16$ 1,081.60$ 46 2572.506 WATER GAL 30 54.08$ 1,622.40$ 47 2572.510 PRUNE TREES HOUR 6 108.16$ 648.96$ 48 2573.501 STABILIZED CONSTRUCTION EXIT LS 1.0 5,408.00$ 5,408.00$ 49 2573.502 STORM DRAIN INLET PROTECTION EACH 18 162.24$ 2,920.32$ 50 2573.503 SILT FENCE, TYPE MS L F 60 3.24$ 194.69$ 51 2573.503 SEDIMENT CONTROL LOG TYPE WOOD FIBER L F 600 3.24$ 1,946.88$ 52 2574.507 COMMON TOPSOIL BORROW C Y 65 32.45$ 2,109.12$ 53 2575.504 SODDING TYPE LAWN S Y 2355 5.41$ 12,735.84$ 54 2575.504 EROSION CONTROL BLANKETS CATEGORY 3 S Y 600 5.41$ 3,244.80$ 55 2575.508 HYDRAULIC MULCH MATRIX LB 300 3.24$ 973.44$ 56 2575.523 RAPID STABILIZATION METHOD 3 MGAL 300 3.24$ 973.44$ 57 2582.503 4" SOLID LINE MULTI COMP L F 150 2.16$ 324.48$ A. STREET IMPROVEMENTS (FISH POINT RD - HURON TO TH 13) OPINION OF PROBABLE COST WSB Project:2021 Street Reconstruction Project Design By:LME Project Location:City of Prior Lake, MN Checked By:EAB City Project No.: WSB Project No:013977-000 Date:9/3/2020 Item No. MnDOT Specification No. Description Unit Estimated Total Quantity Estimated Unit Price Estimated Total Cost A. STREET IMPROVEMENTS (FISH POINT RD - HURON TO TH 13) OPINION OF PROBABLE COST 58 2582.503 24" SOLID LINE MULTI COMP L F 50 3.24$ 162.24$ 59 2582.503 4" DBLE SOLID LINE MULTI COMP L F 1100 2.16$ 2,379.52$ 60 2582.518 PAVT MSSG MULTI COMP S F 100 6.49$ 648.96$ 61 2582.518 CROSSWALK MULTI COMP S F 375 6.49$ 2,433.60$ CONSTRUCTION TOTAL 1,531,834.39$ CONTINGENCY TOTAL (10%) 153,183.44$ SUBTOTAL 1,685,017.83$ INDIRECT COST TOTAL (28%) 471,804.99$ TOTAL 2,156,822.82$ 62 2021.501 MOBILIZATION LS 1 57,324.80$ 57,324.80$ 63 2104.502 REMOVE SIGN EACH 22 54.08$ 1,189.76$ 64 2104.503 SAWING CONCRETE PAVEMENT (FULL DEPTH) L F 50 5.41$ 270.40$ 65 2104.503 SAWING BIT PAVEMENT (FULL DEPTH) L F 275 3.24$ 892.32$ 66 2104.503 REMOVE CURB & GUTTER L F 2800 8.65$ 24,227.84$ 67 2104.504 REMOVE CONCRETE DRIVEWAY PAVEMENT S Y 250 19.47$ 4,867.20$ 68 2104.504 REMOVE BITUMINOUS DRIVEWAY PAVEMENT S Y 170 12.98$ 2,206.46$ 69 2215.504 REMOVE BITUMINOUS PAVEMENT S Y 4668 3.24$ 15,146.73$ 70 2104.518 REMOVE SIDEWALK S F 16800 7.57$ 127,196.16$ 71 2104.601 SALVAGE FLASHER SYSTEM LS 1 16,224.00$ 16,224.00$ 72 2106.507 EXCAVATION - COMMON C Y 656 21.63$ 14,190.59$ 73 2106.507 EXCAVATION - SUBGRADE C Y 1806 27.04$ 48,834.24$ 74 2106.507 SELECT GRANULAR EMBANKMENT (CV) C Y 1626 21.63$ 35,173.63$ 75 2106.507 STABILIZING AGGREGATE C Y 50 27.04$ 1,352.00$ 76 2123.610 STREET SWEEPER (WITH PICKUP BROOM) HOUR 4 162.24$ 648.96$ 77 2130.523 WATER MGAL 40 54.08$ 2,163.20$ 78 2123.610 UTILITY CREW HOUR 4 108.16$ 432.64$ 79 2211.507 AGGREGATE BASE CLASS 5 CY 1574 37.86$ 59,585.34$ 80 2211.607 CRUSHED ROCK C Y 20 21.63$ 432.64$ 81 2360.504 TYPE SP 9.5 WEAR CRS MIX(2,C)3.0" THICK S Y 170 48.67$ 8,274.24$ 82 2360.509 TYPE SP 12.5 WEARING COURSE MIX (3,C) TON 554 81.12$ 44,940.48$ 83 2360.509 TYPE SP 12.5 NON WEAR COURSE MIX (3,C) TON 1108 81.12$ 89,880.96$ 84 2504.602 IRRIGATION SYSTEM REPAIR EACH 10 270.40$ 2,704.00$ 85 2521.518 4" CONCRETE WALK S F 1260 10.82$ 13,628.16$ 86 2521.518 6" CONCRETE WALK S F 315 12.98$ 4,088.45$ 87 2531.503 CONCRETE CURB & GUTTER DESIGN B618 L F 2900 21.63$ 62,732.80$ 88 2531.504 6" CONCRETE DRIVEWAY PAVEMENT S Y 263 81.12$ 21,334.56$ 89 2531.618 TRUNCATED DOMES S F 48 21.63$ 1,038.34$ 90 2563.601 TRAFFIC CONTROL LS 1 27,040.00$ 27,040.00$ 91 2564.518 SIGN PANELS TYPE C S F 49 27.04$ 1,324.96$ 92 2564.602 SIGN PANELS TYPE SPECIAL EACH 6 324.48$ 1,946.88$ 93 2565.601 INSTALL FLASHER SYSTEM LS 1 16,224.00$ 16,224.00$ 94 2572.506 WATER GAL 20 54.08$ 1,081.60$ 95 2572.510 PRUNE TREES HOUR 4 108.16$ 432.64$ 96 2573.501 STABILIZED CONSTRUCTION EXIT LS 1 5,408.00$ 5,408.00$ 97 2573.502 STORM DRAIN INLET PROTECTION EACH 6 162.24$ 973.44$ 98 2573.503 SILT FENCE, TYPE MS L F 40 3.24$ 129.79$ 99 2573.503 SEDIMENT CONTROL LOG TYPE WOOD FIBER L F 400 3.24$ 1,297.92$ 100 2574.507 COMMON TOPSOIL BORROW C Y 45 32.45$ 1,460.16$ 101 2575.504 SODDING TYPE LAWN S Y 1694 5.41$ 9,161.15$ 102 2575.504 EROSION CONTROL BLANKETS CATEGORY 3 S Y 400 5.41$ 2,163.20$ 103 2575.508 HYDRAULIC MULCH MATRIX LB 200 3.24$ 648.96$ 104 2575.523 RAPID STABILIZATION METHOD 3 MGAL 200 3.24$ 648.96$ 105 2582.503 4" SOLID LINE MULTI COMP L F 150 2.16$ 324.48$ B. STREET IMPROVEMENTS (FISH POINT RD - CR 44 TO HURON) WSB Project:2021 Street Reconstruction Project Design By:LME Project Location:City of Prior Lake, MN Checked By:EAB City Project No.: WSB Project No:013977-000 Date:9/3/2020 Item No. MnDOT Specification No. Description Unit Estimated Total Quantity Estimated Unit Price Estimated Total Cost A. STREET IMPROVEMENTS (FISH POINT RD - HURON TO TH 13) OPINION OF PROBABLE COST 106 2582.503 24" SOLID LINE MULTI COMP L F 50 3.24$ 162.24$ 107 2582.503 4" DBLE SOLID LINE MULTI COMP L F 1400 2.16$ 3,028.48$ 108 2582.518 PAVT MSSG MULTI COMP S F 100 6.49$ 648.96$ 109 2582.518 CROSSWALK MULTI COMP S F 375 6.49$ 2,433.60$ CONSTRUCTION TOTAL 737,520.33$ CONTINGENCY TOTAL (10%) 73,752.03$ SUBTOTAL 811,272.36$ INDIRECT COST TOTAL (28%) 227,156.26$ TOTAL 1,038,428.62$ 110 2104.502 REMOVE DRAINAGE STRUCTURE EACH 7 540.80$ 3,785.60$ 111 2104.503 REMOVE SEWER PIPE (STORM) L F 488 21.63$ 10,556.42$ 112 2501.502 15" RC PIPE APRON EACH 1 540.80$ 540.80$ 113 2502.503 4" PERF PE PIPE DRAIN L F 4150 27.04$ 112,216.00$ 114 2502.602 4" PVC PIPE DRAIN CLEANOUT EACH 8 540.80$ 4,326.40$ 115 2503.503 12" RC PIPE SEWER DES 3006 CL V L F 80 45.43$ 3,634.18$ 116 2503.503 15" RC PIPE SEWER DES 3006 CL V L F 795 48.67$ 38,694.24$ 117 2503.503 18" RC PIPE SEWER DES 3006 CL III L F 65 50.84$ 3,304.29$ 118 2503.602 CONNECT TO EXISTING STORM SEWER EACH 1 2,163.20$ 2,163.20$ 119 2503.603 LINING SEWER PIPE 15"L F 130 60.00$ 7,800.00$ 120 2504.604 4" POLYSTYRENE INSULATION S Y 20 48.67$ 973.44$ 121 2506.502 CONST DRAINAGE STRUCTURE DESIGN H EACH 2 3,244.80$ 6,489.60$ 122 2506.503 CONST DRAINAGE STRUCTURE DES 48-4020 L F 6 648.96$ 3,893.76$ 123 2506.503 CONST DRAINAGE STRUCTURE DES 60-4020 L F 16 757.12$ 12,113.92$ 124 2506.602 CONST DRAINAGE STRUCTURE DESIGN SPEC (2'X3') EACH 15 2,704.00$ 40,560.00$ CONSTRUCTION TOTAL 251,051.84$ CONTINGENCY TOTAL (10%) 25,105.18$ SUBTOTAL 276,157.02$ INDIRECT COST TOTAL (28%) 77,323.97$ TOTAL 353,480.99$ 125 2104.502 REMOVE DRAINAGE STRUCTURE EACH 10 540.80$ 5,408.00$ 126 2104.503 REMOVE SEWER PIPE (STORM) L F 663 21.63$ 14,342.02$ 127 2501.502 18" RC PIPE APRON EACH 1 703.04$ 703.04$ 128 2502.503 4" PERF PE PIPE DRAIN L F 2800 27.04$ 75,712.00$ 129 2502.602 4" PVC PIPE DRAIN CLEANOUT EACH 4 540.80$ 2,163.20$ 130 2503.503 12" RC PIPE SEWER DES 3006 CL V L F 38 45.43$ 1,726.23$ 131 2503.503 15" RC PIPE SEWER DES 3006 CL V L F 388 48.67$ 18,884.74$ 132 2503.503 18" RC PIPE SEWER DES 3006 CL III L F 32 50.84$ 1,626.73$ 133 2503.602 CONNECT TO EXISTING STORM SEWER EACH 2 2,163.20$ 4,326.40$ 134 2504.604 4" POLYSTYRENE INSULATION S Y 12 48.67$ 584.06$ 135 2506.503 CONST DRAINAGE STRUCTURE DES 48-4020 L F 8 648.96$ 5,191.68$ 136 2506.602 CONST DRAINAGE STRUCTURE DESIGN SPEC (2'X3') EACH 7 2,704.00$ 18,928.00$ CONSTRUCTION TOTAL 149,596.10$ CONTINGENCY TOTAL (10%) 14,959.61$ SUBTOTAL 164,555.71$ INDIRECT COST TOTAL (28%) 46,075.60$ TOTAL 210,631.30$ 137 2104.502 REMOVE CASTING EACH 2 216.32$ 432.64$ 138 2104.502 REMOVE MANHOLE EACH 9 525.00$ 4,725.00$ 139 2104.503 REMOVE SANITARY SERVICE PIPE L F 600 10.82$ 6,489.60$ 140 2104.503 REMOVE SEWER PIPE (SANITARY) L F 1265 21.05$ 26,628.25$ 141 2503.602 CONNECT TO EXISTING SANITARY SEWER SER EACH 20 2,163.20$ 43,264.00$ 142 2503.603 4" PVC PIPE SEWER L F 630 27.04$ 17,035.20$ 143 2503.603 8" PVC PIPE SEWER L F 1265 63.16$ 79,897.40$ 144 2503.603 LINING SEWER PIPE 8"L F 365 43.26$ 15,791.36$ 145 2506.502 CASTING ASSEMBLY EACH 2 865.28$ 1,730.56$ E. SANITARY SEWER IMPROVEMENTS (FISH POINT RD - HURON TO TH 13) D. DRAINAGE IMPROVEMENTS (FISH POINT RD - CR 44 TO HURON) C. DRAINAGE IMPROVEMENTS (FISH POINT RD - HURON TO TH 13) WSB Project:2021 Street Reconstruction Project Design By:LME Project Location:City of Prior Lake, MN Checked By:EAB City Project No.: WSB Project No:013977-000 Date:9/3/2020 Item No. MnDOT Specification No. Description Unit Estimated Total Quantity Estimated Unit Price Estimated Total Cost A. STREET IMPROVEMENTS (FISH POINT RD - HURON TO TH 13) OPINION OF PROBABLE COST 146 2506.502 ADJUST FRAME & RING CASTING EACH 8 757.12$ 6,056.96$ 147 2506.602 CHIMNEY SEAL EACH 8 324.48$ 2,595.84$ 148 2506.603 CONSTRUCT 48" SAN MANHOLE L F 117 450.00$ 52,650.00$ CONSTRUCTION TOTAL 204,646.81$ CONTINGENCY TOTAL (10%) 20,464.68$ SUBTOTAL 225,111.49$ INDIRECT COST TOTAL (28%) 63,031.22$ TOTAL 288,142.71$ 149 2503.603 LINING SEWER PIPE 8"L F 738 43.26$ 31,928.83$ 150 2506.502 ADJUST FRAME & RING CASTING EACH 3 757.12$ 2,271.36$ 151 2506.602 CHIMNEY SEAL EACH 3 324.48$ 973.44$ CONSTRUCTION TOTAL 35,173.63$ CONTINGENCY TOTAL (10%) 3,517.36$ SUBTOTAL 38,691.00$ INDIRECT COST TOTAL (28%) 10,833.48$ TOTAL 49,524.47$ 152 2104.502 REMOVE GATE VALVE & BOX EACH 8 86.53$ 692.22$ 153 2104.502 REMOVE CURB STOP & BOX EACH 20 54.08$ 1,081.60$ 154 2104.502 REMOVE HYDRANT EACH 2 216.32$ 432.64$ 155 2104.503 REMOVE WATER MAIN L F 2050 8.65$ 17,738.24$ 156 2104.503 REMOVE WATER SERVICE PIPE L F 600 6.49$ 3,893.76$ 157 2105.601 DEWATERING LS 1 13,520.00$ 13,520.00$ 158 2504.601 TEMPORARY WATER SERVICE LS 1 13,520.00$ 13,520.00$ 159 2504.602 CONNECT TO EXISTING WATER MAIN EACH 1 1,622.40$ 1,622.40$ 160 2504.602 CONNECT TO EXISTING WATER SERVICE EACH 20 1,622.40$ 32,448.00$ 161 2504.602 HYDRANT EACH 2 7,571.20$ 15,142.40$ 162 2504.602 1" CORPORATION STOP EACH 21 432.64$ 9,085.44$ 163 2504.602 6" GATE VALVE & BOX EACH 2 1,730.56$ 3,461.12$ 164 2504.602 8" GATE VALVE & BOX EACH 8 2,163.20$ 17,305.60$ 165 2504.602 1" CURB STOP & BOX EACH 21 378.56$ 7,949.76$ 166 2504.603 1" TYPE PE PIPE L F 630 43.26$ 27,256.32$ 167 2504.603 6" C900 PVC WATERMAIN L F 30 43.26$ 1,297.92$ 168 2504.603 8" C900 PVC WATERMAIN L F 2050 54.08$ 110,864.00$ 169 2504.608 DUCTILE IRON FITTINGS LB 700 8.65$ 6,056.96$ CONSTRUCTION TOTAL 283,368.38$ CONTINGENCY TOTAL (10%) 28,336.84$ SUBTOTAL 311,705.22$ INDIRECT COST TOTAL (28%) 87,277.46$ TOTAL 398,982.68$ 170 2104.502 REMOVE GATE VALVE & BOX EACH 5 86.53$ 432.64$ 171 2104.502 REMOVE HYDRANT EACH 2 216.32$ 432.64$ 172 2104.503 REMOVE WATER MAIN L F 1400 8.65$ 12,113.92$ 173 2105.601 DEWATERING LS 1 13,520.00$ 13,520.00$ 174 2504.601 TEMPORARY WATER SERVICE LS 1 13,520.00$ 13,520.00$ 175 2504.602 CONNECT TO EXISTING WATER MAIN EACH 3 1,622.40$ 4,867.20$ 176 2504.602 HYDRANT EACH 2 7,571.20$ 15,142.40$ 177 2504.602 6" GATE VALVE & BOX EACH 2 1,730.56$ 3,461.12$ 178 2504.602 8" GATE VALVE & BOX EACH 5 2,163.20$ 10,816.00$ 179 2504.603 6" C900 PVC WATERMAIN L F 30 43.26$ 1,297.92$ 180 2504.603 8" C900 PVC WATERMAIN L F 1400 54.08$ 75,712.00$ 181 2504.608 DUCTILE IRON FITTINGS LB 500 8.65$ 4,326.40$ CONSTRUCTION TOTAL 155,642.24$ CONTINGENCY TOTAL (10%) 15,564.22$ SUBTOTAL 171,206.46$ INDIRECT COST TOTAL (28%) 47,937.81$ TOTAL 219,144.27$ H. WATERMAIN IMPROVEMENTS (FISH POINT RD - CR 44 TO HURON) G. WATERMAIN IMPROVEMENTS (FISH POINT RD - HURON TO TH 13) F. SANITARY SEWER IMPROVEMENTS (FISH POINT RD - CR 44 TO HURON) WSB Project:2021 Street Reconstruction Project Design By:LME Project Location:City of Prior Lake, MN Checked By:EAB City Project No.: WSB Project No:013977-000 Date:9/3/2020 Item No. MnDOT Specification No. Description Unit Estimated Total Quantity Estimated Unit Price Estimated Total Cost A. STREET IMPROVEMENTS (FISH POINT RD - HURON TO TH 13) OPINION OF PROBABLE COST 182 2021.501 MOBILIZATION LS 1 2,204.00$ 2,204.00$ 183 2545.502 LIGHTING UNIT TYPE SPECIAL EACH 8 2,704.00$ 21,632.00$ CONSTRUCTION TOTAL 23,836.00$ CONTINGENCY TOTAL (10%) 2,383.60$ SUBTOTAL 26,219.60$ INDIRECT COST TOTAL (28%) 7,341.49$ TOTAL 33,561.09$ 184 2021.501 MOBILIZATION LS 1 2,204.00$ 2,204.00$ 185 2545.502 LIGHTING UNIT TYPE SPECIAL EACH 4 2,704.00$ 10,816.00$ CONSTRUCTION TOTAL 13,020.00$ CONTINGENCY TOTAL (10%) 1,302.00$ SUBTOTAL 14,322.00$ INDIRECT COST TOTAL (28%) 4,010.16$ TOTAL 18,332.16$ 186 2104.503 REMOVE RETAINING WALL L F 1571 16.22$ 25,487.90$ 187 2104.503 REMOVE FENCE L F 325 16.22$ 5,272.80$ 188 2105.504 GEOTEXTILE FABRIC TYPE 7 S Y 1638 4.33$ 7,086.64$ 189 2106.507 EXCAVATION - COMMON C Y 1516 19.47$ 29,514.70$ 190 2106.507 SELECT GRANULAR EMBANKMENT (CV) C Y 856 16.22$ 13,887.74$ 191 2402.503 ORNAMENTAL METAIL RAILING L F 1180 270.40$ 319,072.00$ 192 2411.604 MODULAR BLOCK RETAINING WALL S F 7368 59.49$ 438,307.58$ 193 2451.507 COARSE FILTER AGGREGATE (CV) C Y 273 19.47$ 4,095.00$ 194 2502.503 4" PERF TP PIPE DRAIN L F 1571 27.04$ 42,479.84$ CONSTRUCTION TOTAL 885,204.22$ CONTINGENCY TOTAL (10%) 88,520.42$ SUBTOTAL 973,724.64$ INDIRECT COST TOTAL (28%) 272,642.90$ TOTAL 1,246,367.54$ 195 - REVISED TRAFFIC CONTROL SYSTEM LS 1 91,936.00$ 91,936.00$ CONSTRUCTION TOTAL 91,936.00$ CONTINGENCY TOTAL (10%) 9,193.60$ SUBTOTAL 101,129.60$ INDIRECT COST TOTAL (28%) 28,316.29$ TOTAL 129,445.89$ 196 2106.507 EXCAVATION - COMMON C Y 323 19.47$ 6,288.42$ 197 2106.507 COMMON EMBANKMENT (CV) C Y 50 16.22$ 811.20$ 198 2211.507 AGGREGATE BASE CLASS 5 CY 194 37.86$ 7,344.06$ 199 2521.518 4" CONCRETE WALK S F 10150 10.82$ 109,782.40$ 200 2521.518 6" CONCRETE WALK S F 300 12.98$ 3,893.76$ 201 2531.618 TRUNCATED DOMES S F 72 27.04$ 1,946.88$ CONSTRUCTION TOTAL 130,066.73$ CONTINGENCY TOTAL (10%) 13,006.67$ SUBTOTAL 143,073.40$ INDIRECT COST TOTAL (28%) 40,060.55$ TOTAL 183,133.95$ GRAND TOTAL (FISH POINT ROAD - 2023 DOLLARS) 6,325,998.49$ M. ADDITIONAL SIDEWALK IMPROVEMENTS L. TH 13/FISH POINT ROAD INTERSECTION IMPROVEMENTS K. RETAINING WALL IMPROVEMENTS (FISH POINT) J. LIGHTING IMPROVEMENTS (FISH POINT RD - CR 44 TO HURON) I. LIGHTING IMPROVEMENTS (FISH POINT RD - HURON TO TH 13) Feasibility Report Fish Point Road (CSAH 44 to TH 13) Reconstruction Project TRN#20-000001 City of Prior Lake WSB Project No. R-13977-000 APPENDIX D Assessment Map Phase 1 Preliminary Assessment Roll Phase 2 Preliminary Assessment Roll ?±A@ G³WX 47 70 64 67 68 69 63 53 54 52 27 26 3 20 65 66 71 72 7374757677787980 58 59 61 60 62 48 49 50 51 555657 37 38 39 40 41 42 43 44 45 24232221 36 3534 33 32 31 30 29 28 8182 83 16 15 14 13 1211109 7 6 5 4 17 1819 8 1 2 25 Project Location Construction Phase Year Phase 1 (2021) Assessed Parcels Phase 2 (2023) Assessed Parcels 0 475Feet¯Fish Point Road (CSAH 44 to TH 13) Reconstruction ProjectFigure 5 - Assessment MapPrior Lake, MN Document Path: K:\013977-000\GIS\Maps\AssessmentMap.mxd Date Saved: 8/18/2020 7:57:32 AM1 inch = 475 feet Date: 9/8/2020 Rate WSB Project No.: 013977-000 Residential Single-Family Per Unit Assessment As Determined By Special Benefit Consultation, Patchin Messner Valuation Counselors, Dated July 31, 2020: $9,000.00 Assessment Rate Determined by Special Benefit Consultation, Patchin Messner Valuation Counselors, Dated July 31, 2020:* 3 250480220 FLANAGAN KELLY MARGARET 15480 OMEGA TRL SE PRIOR LAKE, MN 55372 15480 OMEGA TRL SE SF RES 1.5 $9,000.00 $13,500.00 4 252670120 FRANZEN BENJAMIN 15504 OMEGA TRL SE PRIOR LAKE, MN 55372 15504 OMEGA TRL SE SF RES 1.5 $9,000.00 $13,500.00 5 252670110 ARDO TRUST 47-144 MAPELE WAY KANEOHE, HI 96744 15534 OMEGA TRL SE SF RES 1 $9,000.00 $9,000.00 6 252670100 KEMPER TODD D & CHRISTINE A 15546 OMEGA TRL SE PRIOR LAKE, MN 55372 15546 OMEGA TRL SE SF RES 1 $9,000.00 $9,000.00 7 252670090 WIKSTROM CRISTAL 15654 OMEGA TR SE PRIOR LAKE, MN 55372 15654 OMEGA TRL SE SF RES 1 $9,000.00 $9,000.00 14 252670030 PHILLIPICH JOHN 15659 OMEGA TRL SE PRIOR LAKE, MN 55372 15659 OMEGA TRL SE SF RES 1.5 $9,000.00 $13,500.00 15 252670020 REMARCIK JAMES T 15547 OMEGA TRL SE PRIOR LAKE, MN 55372 15547 OMEGA TRL SE SF RES 1 $9,000.00 $9,000.00 16 252670010 ANDREA MARIE STEGER REVOCABLE TRUST 15535 OMEGA TR SE PRIOR LAKE, MN 55372 15535 OMEGA TRL SE SF RES 1 $9,000.00 $9,000.00 19 259360470 YEATES SEAN R 15525 OMEGA TRL SE PRIOR LAKE, MN 55372 15525 OMEGA TRL SE SF RES 1.5 $9,000.00 $13,500.00 20 250480240 RUNNING GREGORY L 15489 OMEGA TR SE PRIOR LAKE, MN 55372 15489 OMEGA TRL SE SF RES 1 $9,000.00 $9,000.00 21 252250040 DALY JEFFREY D & SUSAN K LOEHRS 5884 TIMBER TRL SE PRIOR LAKE, MN 55372 5884 TIMBER TRL SE SF RES 1 $9,000.00 $9,000.00 22 252250030 MARTINI SCOTT J & KIMBERLEE 5900 TIMBER TRL SE PRIOR LAKE, MN 55372 5900 TIMBER TRL SE SF RES 1 $9,000.00 $9,000.00 23 252250020 KEOUGH TIMOTHY H & JANE L 5918 TIMBER TRL SE PRIOR LAKE, MN 55372 5918 TIMBER TRL SE SF RES 1 $9,000.00 $9,000.00 24 252250010 MILLER BRIAN D & KATHLEEN M 5940 TIMBER TRL SE PRIOR LAKE, MN 55372 5940 TIMBER TRL SE SF RES 1 $9,000.00 $9,000.00 25 259360581 AL-MAHMOOD PROPERTY LLC 2015 WASHTENAW AVE ANN ARBOR, MI 48104 5995 TIMBER TRL SE CH/AUD/THE **$17,820.00 26 258010090 CHARLES S & PATRICIA D STEVENS REVOCABLE TRUST 5975 TIMBER TRL SE PRIOR LAKE, MN 55372 5975 TIMBER TRL SE SF RES 1 $9,000.00 $9,000.00 27 252250140 COLLINS DAVID J & ANNETTE M 5959 TIMBER TRL SE PRIOR LAKE, MN 55372 5959 TIMBER TRL SE SF RES 1 $9,000.00 $9,000.00 28 252250130 UFKEN RANDALL L & NANCY L 5945 TIMBER TRL SE PRIOR LAKE, MN 55372 5945 TIMBER TRL SE SF RES 1 $9,000.00 $9,000.00 29 252250120 JACOBSON PAUL J 5931 TIMBER TRL SE PRIOR LAKE, MN 55372 5931 TIMBER TRL SE SF RES 1 $9,000.00 $9,000.00 30 252250110 FUHRMAN CHARLES F & JUDITH A 5915 TIMBER TRL SE PRIOR LAKE, MN 55372 5915 TIMBER TRL SE SF RES 1 $9,000.00 $9,000.00 31 252250100 RODGERS PHILIP LEE JR 5895 TIMBER TRL SE PRIOR LAKE, MN 55372 5895 TIMBER TRL SE SF RES 1 $9,000.00 $9,000.00 32 252250090 HAGEN JEFF 5879 TIMBER TR SE PRIOR LAKE, MN 55372 5879 TIMBER TRL SE SF RES 1 $9,000.00 $9,000.00 33 252250080 HEDDEN CORY 5863 TIMBER TRL SE PRIOR LAKE, MN 55372 5863 TIMBER TRL SE SF RES 1 $9,000.00 $9,000.00 34 252250070 HOWLETT PETER A 5847 TIMBER TRL SE PRIOR LAKE, MN 55372 5847 TIMBER TRL SE SF RES 1 $9,000.00 $9,000.00 35 252250060 DUDZIK ROBERT W & ELLEN 5833 TIMBER TRL SE PRIOR LAKE, MN 55372 5833 TIMBER TRL SE SF RES 1 $9,000.00 $9,000.00 36 252250050 MANTHEY TIFFANY G 15210 HOWARD LAKE RD NW SHAKOPEE, MN 55379 5821 TIMBER TRL SE SF RES 1 $9,000.00 $9,000.00 40 251800040 NUNEZ LUIS FERNANDO VEGA 15487 FISH POINT RD SE PRIOR LAKE, MN 55372 15487 FISH POINT RD SE SF RES 1 $9,000.00 $9,000.00 41 251800050 SAGAN ALEKSANDR 5874 GLORY CIR SE PRIOR LAKE, MN 55372 5874 GLORY CIR SE SF RES 1 $9,000.00 $9,000.00 42 251800060 BADLEY DONNA H PO BOX 909 PRIOR LAKE, MN 55372 5890 GLORY CIR SE SF RES 1 $9,000.00 $9,000.00 43 251800070 SPERRAZZA KELLI G 5900 GLORY CIR SE PRIOR LAKE, MN 55372 5900 GLORY CIR SE SF RES 1 $9,000.00 $9,000.00 44 251800080 AUTENRIETH MICHAEL & CHRISTI 5910 GLORY CIR SE PRIOR LAKE, MN 55372 5910 GLORY CIR SE SF RES 1 $9,000.00 $9,000.00 45 251800090 MOSHER KORY J 5901 GLORY CIR SE PRIOR LAKE, MN 55372 5901 GLORY CIR SE SF RES 1 $9,000.00 $9,000.00 47 250760010 LANGSDORF TROY F 15521 FISH POINT RD SE PRIOR LAKE, MN 55372 15521 FISH POINT RD SE SF RES 1.5 $9,000.00 $13,500.00 50 250880010 STROH JODY T 5910 MILLERS CIR SE PRIOR LAKE, MN 55372 5910 MILLERS CIR SE SF RES 1 $9,000.00 $9,000.00 51 250880020 NORBERG JEFFREY & CARIS 5920 MILLERS CIR SE PRIOR LAKE, MN 55372 5920 MILLERS CIR SE SF RES 1 $9,000.00 $9,000.00 52 250880031 AHEIMKES ANTHONY 5926 MILLERS CIR SE PRIOR LAKE, MN 55372 5926 MILLERS CIR SE SF RES 1 $9,000.00 $9,000.00 53 250880030 AAREBORN LLC 256 CANNES ST HENDERSON, NV 89015 5930 MILLERS CIR SE SF RES 1 $9,000.00 $9,000.00 54 250880040 PETRIE CHRISTOPHER P 5923 MILLERS CIR SE PRIOR LAKE, MN 55372 5923 MILLERS CIR SE SF RES 1 $9,000.00 $9,000.00 55 250880050 RASMUSSON JUSTIN 5913 MILLERS CIR SE PRIOR LAKE, MN 55372 5913 MILLERS CIR SE SF RES 1 $9,000.00 $9,000.00 56 250880060 HANSON MARK S 5903 MILLERS CIR SE PRIOR LAKE, MN 55372 5903 MILLERS CIR SE SF RES 1 $9,000.00 $9,000.00 57 250880070 JOHNSON LEANN R 5893 MILLERS CIR SE PRIOR LAKE, MN 55372 5893 MILLERS CIR SE SF RES 1 $9,000.00 $9,000.00 59 250730190 MAHANEY WILLIS MYRL JR 3919 MEADOW VIEW LN ELKO NEW MARKET, MN 55020 5885 HIDDEN OAKS CIR SE SF RES 1 $9,000.00 $9,000.00 60 250730210 WOYNILKO JAMES A JR 5903 TERRI CIR SE PRIOR LAKE, MN 55372 5903 TERRI CIR SE SF RES 1 $9,000.00 $9,000.00 61 250730200 KUCINSKI RICHARD M 5891 HIDDEN OAKS CIR SE PRIOR LAKE, MN 55372 5891 HIDDEN OAKS CIR SE SF RES 1 $9,000.00 $9,000.00 62 250730220 JACKSON AMANDA GAIL 5970 TIMBERVIEW ST SE PRIOR LAKE, MN 55372 5970 TIMBERVIEW ST SE SF RES 1 $9,000.00 $9,000.00 63 250730230 LAMONT THOMAS M & CATHERINE M 5990 TIMBERVIEW ST SE PRIOR LAKE, MN 55372 5990 TIMBERVIEW ST SE SF RES 1 $9,000.00 $9,000.00 64 250730010 ROIGER NICHOLAS 5991 TIMBERVIEW ST SE PRIOR LAKE, MN 55372 5991 TIMBERVIEW ST SE SF RES 1 $9,000.00 $9,000.00 65 250730020 VONGUTEN DAVID W & KAREN M 5915 HIDDEN OAKS CIR SE PRIOR LAKE, MN 55372 5915 HIDDEN OAKS CIR SE SF RES 1 $9,000.00 $9,000.00 66 250730030 OLSON MICHAEL J & JUDY M 5925 HIDDEN OAKS CIR SE PRIOR LAKE, MN 55372 5925 HIDDEN OAKS CIR SE SF RES 1 $9,000.00 $9,000.00 67 250730040 HETLAND MATTHEW 5935 HIDDEN OAKS CIR SE PRIOR LAKE, MN 55372 5935 HIDDEN OAKS CIR SE SF RES 1 $9,000.00 $9,000.00 68 250730050 MIU NICOLAE 5945 HIDDEN OAKS CIR SE PRIOR LAKE, MN 55372 5945 HIDDEN OAKS CIR SE SF RES 1 $9,000.00 $9,000.00 CITY OF PRIOR LAKE PHASE 1 (2021) FISH POINT ROAD (CSAH 44 TO TH 13) RECONSTRUCTION PROJECT PRELIMINARY ASSESSMENT ROLL MAP ID PID FEE OWNER FEE OWNER ADDRESS PROPOSED ASSESSMENTCITY/STATE/ZIP PROPERTY ADDRESS UNIT ASSESSMENT RATE USE DESCRIPTION UNITS Date: 9/8/2020 Rate WSB Project No.: 013977-000 Residential Single-Family Per Unit Assessment As Determined By Special Benefit Consultation, Patchin Messner Valuation Counselors, Dated July 31, 2020: $9,000.00 Assessment Rate Determined by Special Benefit Consultation, Patchin Messner Valuation Counselors, Dated July 31, 2020:* CITY OF PRIOR LAKE PHASE 1 (2021) FISH POINT ROAD (CSAH 44 TO TH 13) RECONSTRUCTION PROJECT PRELIMINARY ASSESSMENT ROLL MAP ID PID FEE OWNER FEE OWNER ADDRESS PROPOSED ASSESSMENTCITY/STATE/ZIP PROPERTY ADDRESS UNIT ASSESSMENT RATE USE DESCRIPTION UNITS 69 250730060 LEMLEY RAYMOND A 5955 HIDDEN OAKS CIR SE PRIOR LAKE, MN 55372 5955 HIDDEN OAKS CIR SE SF RES 1 $9,000.00 $9,000.00 70 250730070 WILTZ JEFFREY G & BRIDGET W 5952 HIDDEN OAKS CIR SE PRIOR LAKE, MN 55372 5952 HIDDEN OAKS CIR SE SF RES 1 $9,000.00 $9,000.00 71 250730080 SEERY DANIEL C & LISA K 5942 HIDDEN OAKS CIR SE PRIOR LAKE, MN 55372 5942 HIDDEN OAKS CIR SE SF RES 1 $9,000.00 $9,000.00 72 250730090 SANDBERG SCOTT 5932 HIDDEN OAKS CIR SE PRIOR LAKE, MN 55372 5932 HIDDEN OAKS CIR SE SF RES 1 $9,000.00 $9,000.00 73 250730100 DANKERS KRISTOPHER 5922 HIDDEN OAKS CIR SE PRIOR LAKE, MN 55372 5922 HIDDEN OAKS CIR SE SF RES 1 $9,000.00 $9,000.00 74 250730110 MERRILL WILLIAM R & KATHLEEN D 5912 HIDDEN OAKS CIR SE PRIOR LAKE, MN 55372 5912 HIDDEN OAKS CIR SE SF RES 1 $9,000.00 $9,000.00 75 250730120 MACHAL JOSEPH 5890 HIDDEN OAKS CIR SE PRIOR LAKE, MN 55372 5890 HIDDEN OAKS CIR SE SF RES 1 $9,000.00 $9,000.00 76 250730130 MEYERAAN CHRISTINA 5880 HIDDEN OAKS CIR SE PRIOR LAKE, MN 55372 5880 HIDDEN OAKS CIR SE SF RES 1 $9,000.00 $9,000.00 GRAND TOTAL - PRELIMINARY PROJECT STREET ASSESSMENT:$562,320.00 Date: 9/8/2020 Rate WSB Project No.: 013977-000 Residential Single-Family Per Unit Assessment As Determined By Special Benefit Consultation, Patchin Messner Valuation Counselors, Dated July 31, 2020: $9,000.00 Assessment Rate Determined by Special Benefit Consultation, Patchin Messner Valuation Counselors, Dated July 31, 2020:* 1 259360010 ISD 719 4540 TOWER ST SE PRIOR LAKE, MN 55372 5304 WESTWOOD DR SE SCHOOLS **$100,000.00 2 259360740 ISD 719 4540 TOWER ST SE PRIOR LAKE, MN 55372 15855 FISH POINT RD SE SCHOOLS **$115,500.00 8 259360600 BRENNAN JOSEPH M 15680 FISH POINT RD SE PRIOR LAKE, MN 55372 15680 FISH POINT RD SE SF RES 1 $9,000.00 $9,000.00 9 252670080 FERRIER MICHAEL & KRISTIN G 15676 FISH POINT RD SE PRIOR LAKE, MN 55372 15676 FISH POINT RD SE SF RES 1 $9,000.00 $9,000.00 10 252670070 MARTIN DAVID M 15650 FISH POINT RD SE PRIOR LAKE, MN 55372 15650 FISH POINT RD SE SF RES 1 $9,000.00 $9,000.00 11 252670060 BARNES NATALIE L & BRIAN E BARNES 15630 FISH POINT RD SE PRIOR LAKE, MN 55372 15630 FISH POINT RD SE SF RES 1 $9,000.00 $9,000.00 12 252670050 OLIVER BRADLEY 15622 FISH POINT RD SE PRIOR LAKE, MN 55372 15622 FISH POINT RD SE SF RES 1 $9,000.00 $9,000.00 13 252670040 BONGARD DEBRA K 15602 FISH POINT RD SE PRIOR LAKE, MN 55372 15602 FISH POINT RD SE SF RES 1 $9,000.00 $9,000.00 17 259360460 PHERSON MICHAEL D & TERRI A 15538 FISH POINT RD SE PRIOR LAKE, MN 55372 15538 FISH POINT RD SE SF RES 1 $9,000.00 $9,000.00 18 259360461 KUNTZ CORRIN L 15518 FISH POINT RD PRIOR LAKE, MN 55372 15518 FISH POINT RD SE SF RES 1 $9,000.00 $9,000.00 37 251800010 WHITMORE JOHN W & LINDA 15453 FISH POINT RD SE PRIOR LAKE, MN 55372 15453 FISH POINT RD SE SF RES 1 $9,000.00 $9,000.00 38 251800020 CAMPBELL RANDALL 15469 FISH POINT RD SE PRIOR LAKE, MN 55372 15469 FISH POINT RD SE SF RES 1 $9,000.00 $9,000.00 39 251800030 LINNYWINKEN LLC 5366 FAIRLAWN SHORE PRIOR LAKE, MN 55372 15483 FISH POINT RD SE SF RES 1 $9,000.00 $9,000.00 48 250760030 DICKENSON DARREN R 15543 FISH POINT RD SE PRIOR LAKE, MN 55372 15543 FISH POINT RD SE SF RES 1 $9,000.00 $9,000.00 49 250760040 JOKINEN SCOTT B & CYNTHIA J 15567 FISH POINT RD SE PRIOR LAKE, MN 55372 15567 FISH POINT RD SE SF RES 1 $9,000.00 $9,000.00 58 250730180 ANDERSON MARK STEVEN 15611 FISH POINT RD SE PRIOR LAKE, MN 55372 15611 FISH POINT RD SE SF RES 1 $9,000.00 $9,000.00 77 250730140 LERUM SPENCER 15657 FISH POINT RD SE PRIOR LAKE, MN 55372 15657 FISH POINT RD SE SF RES 1 $9,000.00 $9,000.00 78 250730150 RIDDLE HUGH L & TAMMY 15671 FISH POINT RD SE PRIOR LAKE, MN 55372 15671 FISH POINT RD SE SF RES 1 $9,000.00 $9,000.00 79 250730160 VIDEEN HELEN PO BOX 503 PRIOR LAKE, MN 55372 15685 FISH POINT RD SE SF RES 1 $9,000.00 $9,000.00 80 250730170 DOWNING JOHN P & JANE E 15699 FISH POINT RD SE PRIOR LAKE, MN 55372 15699 FISH POINT RD SE SF RES 1 $9,000.00 $9,000.00 81 252410010 NICKLES JAROD MICHAEL 15719 FISH POINT RD SE PRIOR LAKE, MN 55372 15719 FISH POINT RD SE SF RES 1 $9,000.00 $9,000.00 82 252410020 HALL DONALD W & LINDA L & LINDA L HALL REVOCABLE T 15739 FISH POINT RD SE PRIOR LAKE, MN 55372 15739 FISH POINT RD SE SF RES 1 $9,000.00 $9,000.00 83 252410030 PRIOR LAKE CITY OF & CITY MANAGER 4646 DAKOTA ST SE PRIOR LAKE, MN 55372 --**$19,800.00 GRAND TOTAL - PRELIMINARY PROJECT STREET ASSESSMENT:$415,300.00 CITY OF PRIOR LAKE PHASE 2 (2023) FISH POINT ROAD (CSAH 44 TO TH 13) RECONSTRUCTION PROJECT PRELIMINARY ASSESSMENT ROLL MAP ID PID FEE OWNER FEE OWNER ADDRESS CITY/STATE/ZIP PROPERTY ADDRESS USE DESCRIPTION UNITS PROPOSED ASSESSMENT UNIT ASSESSMENT RATE Feasibility Report Fish Point Road (CSAH 44 to TH 13) Reconstruction Project TRN#20-000001 City of Prior Lake WSB Project No. R-13977-000 APPENDIX E January 23, 2020 1st Neighborhood Meeting Minutes August 5, 2020 Individual Property Owner Meeting Summary K:\013977-000\Feasibility\Neighborhood Meeting Q&A.docx BOLD | VISIONARY | AUTHENTIC | PASSIONATE | OPTIMISTIC Prior Lake 2021 SRP Neighborhood Meeting City Project No. TRN#20-000001 WSB Project No. 013977-000 Thursday, January 23, 2020 6:00 p.m. Resident Q&A 28 residents in attendance Q: Pedestrian safety along Fish Point. Green space between street and sidewalk. A: Vehicle and pedestrian safety is important and will be evaluated. Design will follow MnDOT state aid requirements. Q: Project Helpline phone numbers A: Number on handout at meeting should be 952-737-4683, not 952-797-4683 Q: Resident lives by 25 mph sign, traffic often much faster A: 25 mph sig is advisory, not posted speed limit. A: Engineering and PD are aware of the speed issues. Continued PD enforcement A: Driver feedback signs will be installed with the project Q: Lighting. Lights direct up ad into windows A: Typical residential lighting will be installed with project, similar to Huron project Q: Notification and schedule A: Notices will be mailed. Updates via email and website Q: Landscaping A: Landscaping in ROW is at homeowners’ risk, will not be replaced with project. ROW is approx. 15’ behind b/c Q: 15602 Fish Point. Water flows very fast down the hill and washes away A: Leave a comment card so it can be noted in design A: Meetings will be available to meet one on one with the project team to discuss walls, drainage, services, trees, etc. Q: Lighting. Orange vs White A: Replace with white LED Q: Gas replacement A: City is coordinating with all private utilities within project and gas mains may or may not be replaced K:\013977-000\Feasibility\Neighborhood Meeting Q&A.docx Q: Fish Point alignment A: Monir changes to vertical and horizontal alignment. In general, it will look and feel the same as it does today Q: Water service/curb stop in driveway. Driveway replacement A: Yes driveway replacement, in kind, for the disturbed area. Q: Full driveway replacement A: Probably not, contractors typically don’t do that work on larger street projects Q: Old project narrowed street and patched driveways. Poor quality A: This project will be a quality product and have a warranty period Q: Electric/Cable companies A: Explained utility coordination efforts for the project. There are many different private utility owners in this area. Q: School traffic A: Project team met with School district to discuss project Q: School and Church being assessed? A: Yes Q: Project Funding A: State aid, city tax dollars, CIP, utility funds. A: Explained assessment policy and conversion of Fish Point to local road for assessment calculation Q: Kid/Pedestrian safety. Stop signs or speed bumps A: Stop signs or speed bumps not being evaluated with project. Tend to have a negative effect Q: Assessment and why 10 year pay back A: Explained City bonding policy A: Approximately 4.5% interest rate. 2 points higher than City’s rate Q: 5912 Hidden Oaks Cir. Hidden Oaks Pond A: Storm sewer is being televised and evaluated. Pond likely not changing K:\013977-000\Admin\Meeting\8 5 20 Phase 1 Property Owner Meetings\Property Owner Meeting Summary.docx BOLD | VISIONARY | AUTHENTIC | PASSIONATE | OPTIMISTIC Prior Lake 2021 SRP Property Owner Meetings City Project No. TRN#20-000001 WSB Project No. 013977-000 Wednesday, August 5th, 2020 Meeting Summaries 15453 Fish Point Rd SE (John Whitmore) - The residents’ primary concern is the work occurring along Timber Trail SE (north of their property), since the street is quite a bit higher in elevation than their lot. There are City- owned timber retaining walls (built around 1984) that are beginning to degrade at the north property line, and private landscape block retaining walls. They are requesting that the walls are replaced at the City’s cost. City and WSB staff indicated that attempts will be made to locate property corners and verify that the timber wall is within the road right- of-way. - There is an existing storm sewer grate/inlet at the base of the landscape block wall that appears to connect to the storm sewer in the street via an 18” RCP pipe. The residents indicated that when that was first installed it would backup in major storms and had flooded their basement. The City completed some adjustments many years ago, and it hasn’t been as much of an issue since. WSB will incorporate this storm sewer inlet into the site analysis. - It was also discussed that all of the shrubs along the top of the wall were in very close proximity to the road and would likely need to be removed. The residents stated they were fine with that, but also stated that their goal is to “screen” the sight an d noise of traffic along the street and along TH 13. - It was noted that their services are off of Fish Point Road and on preliminary review, their replacement didn’t seem to require any tree removals in their front yard. - The landscaping and trees at the northwest corner of their property will likely need to be removed and the residents stated they were fine with that. 5910 Glory Circle SE (Michael Autenrieth) & 5901 Glory Circle SE (Kory Mosher) - This was a joint meeting with both residents. One main question/concern was if the watermain and sanitary sewer between their two properties is going to be replaced. Both of their services come from the side yard mains within the easement. The water service for 5910 was located, and an attempt was made to locate 5901. - The resident at 5910 Glory Circle SE indicated that during major rain events, about every 5-6 years, there is a ravine behind 5900 that essentially floods and runs between the two houses and into the storm sewer inlet in the cul-de-sac. He stated that the house at 5900 has flooded many times. City and WSB staff investigated along Timber Trail SE and determined that it is likely all the drainage is coming from the area outside of City ROW and from rear yards and roof tops. This, however, will be evaluated with the stormwater analysis. - The resident at 5901 asked how much of their driveway would be impacted and if their pine tree in the boulevard would be impacted and replaced if impacted. Nick M. stated that the tree will likely be affected, and if it is in the ROW it won’t be replaced, but if it is K:\013977-000\Admin\Meeting\8 5 20 Phase 1 Property Owner Meetings\Property Owner Meeting Summary.docx on private property, it will. He also gave the resident an approximate location of driveway removals. 5910 Miller’s Circle SE (Jody Stroh) - The resident’s main question was regarding the large timber retaining walls that abut the street on the west side of her property and continue up her driveway toward her garage. It was determined that her sewer and water service are underneath the portion of the wall adjacent to the driveway and that they would be impacted. It was discussed that final wall replacement details will come with design, but that it is likely the project will only replace the portion of the wall impacted by utility work and that the property owner would be responsible for replacing any other portion of the wall if they do desired. She asked how that coordination would work and Andy B. stated that the logistics will be more thought out as we get into design and it will be communicated back to the property owners. - It was also noted to the resident that the two large trees in her front yard will likely be impacted by the sewer and water service replacement. Andy B. explained that there may be a chance that they could be saved during the replacement but may die in a few years if the root system is impacted. He discussed there may be a benefit to having the cost of the tree removal be covered by the project as opposed to the resident later on. - The resident indicated that she would like to keep the retaining wall on the east side of her property if at all possible. 5833 Timber Trail SE (Robert Dudzik) - The resident’s main concern was what impacts are proposed to the timber retaining walls. He indicated that he built the walls and would like to keep them in place if possible. The City and WSB investigated as to the location of the sewer and water service and noted that the water service was in the driveway, about 8’ from the edge of the retaining wall. The resident recalled that the sewer service comes out of the hose on the west side of the property but then angles towards the driveway and runs adjacent to the water service. City and WSB staff will review sewer televising tapes for the area to better determine where this service comes into the main. - The resident also asked what sort of access there will be to his property, as he is currently experiencing mobility challenges. The response was that WSB and City staff will work to communicate access needs to the contractor and require that special accommodations be made to provide access. In general, access to the driveway will be maintained at the beginning and end of each working day for vehicles, except when the concrete curb is curing for 5 days in front of the driveway. 15654 Omega Trail SE (Christopher Wickstrum) - This resident was joined by his neighbor to the east at 15659 Omega Trail SE. One question/concern raised by these residents was how the project will address the improper drainage of the cul-de-sac. They noted that water pools at the end of their driveways and does not make its way down the street to the north. They were curious if improvements to the street could help reduce the slope of their driveways as well. Staff relayed that this drainage issue would be addressed with the storm sewer and street design, and that there is a chance that the cul-de-sac can be raised slightly to help with the steep driveways. - They asked if the private utility pedestals could be moved and/or consolidated with the project. Staff relayed that the City and WSB coordinate with private utilities but that there are typically no restrictions or requirements to move existing pedestals. The City and WSB will notify the private utilities of the residents ’ request. K:\013977-000\Admin\Meeting\8 5 20 Phase 1 Property Owner Meetings\Property Owner Meeting Summary.docx - It was also request that Public Works staff review how snow is stored in the cul-de-sac, as currently they pile it up on the property at 15654 and cover up an electrical transformer and cable pedestals. - The resident at 15654 indicated that they would like to widen their driveway to 24’ wide. Nick M. said that this resident should coordinate with the field staff when curb and gutter is being installed. - Lastly, they requested that the design consider an addition of a cross walk at Fish Point Road and Omega Trail. They have children that are too close to the school to bus, but don’t feel safe crossing the road to get on the sidewalk along the east side of Fish Point Road. The City said that internal discussions are being had about this issue and the design will consider a crossing, or extension of the sidewalk on the west side, so that the crossing at TH 13 can be added and utilized. 15489 Omega Trail SE (Dianna & Greg Running) - The resident’s primary concern was a drainage issue in their yard were water is being held since the street is higher than their yard. This low area somewhat drains to an existing plastic pipe that goes under their driveway and connects to the storm sewer catch basin in the roadway. They were told that storm sewer will be extended into their yard and a catch basin will be installed to collect the drainage and bring it into a new RCP pipe underneath the curb line in their street. The project will also rem ove the existing plastic pipe and replace their heaved concrete apron. - They indicated that they would like to keep the large oak tree to the left of their driveway but were told it is likely that with the storm sewer replacement this tree would have to b e removed. They indicated that would be alright, if it’s necessary. They also stated all the shrubs along the street are ok to be removed. 15480 Omega Trail SE (Kelly Flanagan) - The resident was not home at the meeting time of 3:30 pm. She was contact ed by Kirsten Gray, but wasn’t going to be home until 5:00 pm when the meetings were wrapping up. She was told that the City and WSB would reschedule a meeting. 5925 Hidden Oaks Cir (Judy Olson) - The resident’s primary concern was their newly constructed concrete driveway and whether or not it would be impacted. It was pointed out to the resident that the curbs stop is along the edge of the driveway, and the replacement of the water service and sanitary sewer service would impact the driveway. They were told the driveway would be replaced in-kind, at full width, and that an attempt would be made to match the sawcut joint type. - They were also notified that the pipe tree would need to be removed, and they were fine with that and asked if they could keep the wood for firewood. They were told they could keep the wood and that they should communicate that with the field staff during tree removals.