05-09-2022 Council Packet - Laserfiche WebLink

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assume the future pavement section will be 32-feet back-to-back. The analysis will be based on Atlas 14 precipitation depths. We will evaluate options for routing the proposed system based on the capacity of the existing stubs. We will provide a draft layout of the proposed trunk storm sewer and preliminary sizing of the trunk storm sewer for proposed conditions. Deliverables: proposed drainage area map with trunk storm sewer layout, proposed conditions H/H model, summary of discharge rates. Task 5 — Identify BMP Locations/Footprints The project area is located within RCWD. We will review the RCWD requirements and identify what BMP requirements are needed due to the road reconstruction, increase in impervious surfaces, and to mitigate any discharge rate increases. The City has identified 3 potential parcels within Lakeview and the Sunrise Park for BMPs. It may not be feasible to fully meet RCWD requirements given the depth of the new storm sewer and small size of the parcels. If additional BMP locations need to be identified outside the Lakeview Area limits; we will update this scope and fee. Deliverables: Summary of BMP sizing requirements, potential BMP locations, footprints and types. Task 6 — Prepare Draft and Final Drainage Plans We will prepare a draft report documenting tasks 1-5. We have not included preparation of cost estimates with this analysis. We will submit the draft report for City review and comments. Task 7 — Meet with City Staff We will attend 2 meetings with City Staff to present the draft report and to discuss comments from Staff. We have not included coordination with RCWD at this stage. TOTAL ESTIMATED FEE The scope of services outlined in this proposal will be billed hourly, based on our current hourly rates. We are proposing to complete tasks 1-7 for a not -to -exceed fee of $14,400.00. TIME SCHEDULE We propose to start the work for this project upon authorization. We plan to complete the work by July 2022. If you have any questions about this proposal, please feel free to call me at 612-990- 3576. Sincerely, \\metro-inet\linolakes\Shared\Community Development\Projects\Planning Studies\2022 Lakeview Area Drainage\Staff Reports\20220509 CC SR Lakeview Drainage Proposal\4. 20220429 Lakeview Drainage Proposal.docx