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HomeMy WebLinkAboutAECOM/Cnt 13-01/Proposal for City Hall Parking Lot AECOM AECOM 920.235.0270 tel 558 North Main Street 920.235.0321 fax Oshkosh,Wisconsin 54901 .,, February 1, 2013 Mr. James Rabe City of Oshkosh 215 Church Avenue Oshkosh, Wisconsin 54903-1130 Subject: Proposal for Construction Monitoring, Documentation, Environmental and Engineering Services, Related to Construction of the City Contract 13-01 City Hall Parking Lot, Oshkosh,Wisconsin—AECOM Proposal No. OPP-192325 Dear Mr. Rabe AECOM Technical Services, Inc. (AECOM) is presenting this proposal for the professional engineering services related to the construction of the City Contract 13-01 City Hall Parking Lot in Oshkosh,Wisconsin. AECOM was involved in all prior phases of the project. These phases included evaluating the flooding within the Division Street watershed and alternative solutions, and evaluating the feasibility of an underground detention facility. The result was a recommendation of storm sewer improvements within the watershed and the construction of an underground detention facility at the City Hall parking lot. A preliminary engineering and site investigation was then conducted by AECOM to further evaluate the feasibility of the proposed underground facility. The preliminary engineering and site investigation included a survey of the City Hall parking lot, geotechnical and environmental investigations, comparison of cast-in-place and pre-cast construction methods, and review of cost estimates previously developed. AECOM completed the final design and preparation of the construction drawings and bidding specifications, updating the opinion of probable construction costs for the City Hall underground detention facility, parking lot, and outlet storm sewer. In general,the City Hall Parking lot project consists of construction of a new storm water detention basin, 22,319 square feet in plan view, and associated inlet and outfall storm water sewers beneath the existing paved parking area to the north east of City Hall. Following detention basin construction, the project also includes reconstruction of the paved parking lot, installation of storm water bio-filtration areas, lighting, traffic signage, security fencing, and landscaping attributes. AECOM has prepared the design and bid package for City Contract 13-01 based on previous storm water basin design experience and input from the City of Oshkosh Engineering Division. Start of construction activities at the site is anticipated for early-March 2013 with substantial completion of detention basins and parking lot construction by November 1, 2013. This proposal presents our understanding of the project, our proposed scope of work, and fee estimates for these services. This document includes proprietary data that shall not be duplicated,used or disclosed outside City of Oshkosh for any purpose other than to evaluate this document.This restriction does not limit City of Oshkosh's right to use information contained in this document if it is obtained from another source without restriction. OPP-192325_City Hall Parking Lot CM_Proposal_dss.docx THE AECOM PROPOSAL NO. PP-19235 IS AVAILABLE FOR REVIEW IN THE CITY CLERK’S OFFICE.