2021-11-10 CC Packet - Laserfiche WebLink

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Stantec Consulting Services Inc. 733 Marquette Avenue Suite 1000, Minneapolis MN 55402-2309 November 3, 2021 File: 193885141 Attention: Mr. Mark Statz, City Administrator/Engineer City of Centerville 1880 Main Street Centerville, MN 55038 Dear Mark, Reference: Proposal for Engineering Services - Old Mill Court Boardwalk This letter outlines the Scope of Services and estimated costs to provide structural engineering services for a short boardwalk through a wetland area adjacent to Old Mill Court. Our understanding is that the proposed boardwalk will be 6’ to 8’ wide, approximately 85’ long, and will be constructed on helical piers to minimize wetland impacts. The proposed scope of work will generally be limited to the structural engineering components of design and construction observation for the boardwalk. It is our understanding that the City will provide the boardwalk layout and site plan, solicit quotes, coordinate geotechnical services, and provide contract administration for this work. The City will also procure all permits. Scope of Services The scope of services for this project will consist of the tasks below. Task 1 – One virtual meeting/phone call with the City at 60% plan status to review the plans, schedule and other logistics. Task 2 – Design / Construction Documents. Stantec will provide boardwalk structural details, railing and abutment details, and technical specifications, certified by licensed professionals, for the proposed pile- supported trail. Final project specifications will be written in CSI format and prepared to allow accurate bidding and expeditious construction. We will also provide a quote form for the City to utilize to solicit contractor quotes. Task 3 – Geotechnical Review. Our team will provide the City with the required scope of the geotechnical services so the City can solicit quotes from geotechnical firms. Stantec will review the geotechnical report and incorporate its results and recommendations into our structural design. Geotechnical investigation will consist of a maximum of three soil borings at periodic intervals along the proposed boardwalk alignment. The prepared geotechnical report will include information related to the subsurface conditions, potential obstructions, and recommendations for the helical pile installation including pile depths and capacities. Geotechnical consultant costs are not included in this proposal and will be paid for by the City.