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07-24-23-R
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07-24-23-R
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7/24/2023 6:10:07 PM
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<br />Prepared by: Bolton & Menk, Inc. ESTIMATED COSTS <br />2024 PMP Street & Utility Improvements ǀ 0T1.130168 Page 9 <br />A Level 1 wetland delineation was conducted during the summer of 2023 to identify the wetlands <br />surrounding the proposed pond dredging operations. Permitting associated with the wetland impacts <br />will be submitted to the appropriate agencies for approval at the conclusion of final design and is <br />expected to meet the conditions for a no low permit associated with the Wetland Conservation Act <br />(WCA) requirements. No additional permitting is required for the dewatering of the ponds <br />associated with the pond dredging work. <br />Existing, adjacent wetlands and potential associated permitting needs were identified through the <br />feasibility study. After meeting with the RCWD and identifying the proposed scope of work at the <br />storm sewer outfalls as it relates to RCWD’s rules and regulations, it was determined that Level 2 <br />wetland delineations and associated impacts permitting will be required to complete the work. It is <br />recommended the project’s final design scope be modified to complete the necessary delineations to <br />move forward with the proposed backyard storm sewer improvement work, as proposed in this <br />report. <br />Delineations and necessary permits will be secured during final design. A preliminary list of <br />anticipated permits for construction of the improvements beyond those identified above include the <br />Minnesota Pollution Control Agency (NPDES Construction Stormwater Permit) and the Minnesota <br />Department of Health (Public Watermain Plan Review). <br />The RCWD reached out after our meeting to inform project staff that the proposed project <br />improvements may be eligible for upcoming grant funding. The grant funding is an annual program <br />put on by the RCWD to help with implementation of stormwater management projects in the <br />RCWD. The funding is intended for projects that provide stormwater quality treatment, runoff <br />volume reductions, peak runoff rate control and/or reductions in groundwater usage. Projects <br />proposed in conjunction with municipal street projects, such as this one, are encouraged. <br />Applications for the 2024 Stormwater Management Grant are expected to open around the end of <br />September and be due around mid-December. The application to the RCWD and grant <br />administration should be considered for addition to delivery of this project. <br /> <br />VII. ESTIMATED COSTS <br />Detailed estimates of probable construction costs have been prepared for the improvements <br />described in this Report and are included in Appendix B. All costs are based on anticipated unit <br />prices for the 2024 construction season based on actual bid prices for similar projects. Actual costs <br />will be determined through competitive bids following the final design for the project. All estimated <br />costs also include a 10% contingency and 27% overhead allowance for legal, engineering, <br />administrative, and finance costs. Table 2 contains a summary of the estimated total project costs. <br />for all recommended improvements, inclusive of construction costs, contingency, and overhead <br />allowance. <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br />Table 2 – Estimated Total Project Costs <br />Proposed Improvements <br />Reclamation <br />Areas <br />Mill & <br />Overlay Areas Trails & Ponds Total Project Costs <br />Streets $973,600 $497,500 - $1,471,100 <br />Storm Sewer $358,100 $477,200 - $835,300 <br />Sanitary Sewer $120,200 $47,100 - $167,300 <br />Watermain $202,500 $17,100 - $219,600 <br />Trails & Ponds - - $307,800 $307,800 <br />Total Project Costs $1,654,400 $1,038,900 $307,800 $3,001,100
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