Title
Resolution to Approve an Amendment to Professional Services Agreement with Wade Trim, Inc. for Design Engineering Services for the Valhalla Drive Utility Extension Project ($66,605.40)
Memorandum
Attached for your review and approval, please find a resolution approving an amendment to the July 30, 2008 professional services agreement with Wade Trim, Inc. (Wade Trim), for additional design engineering services in the amount of $66,605.40
Project UT-SN-06-01, the Valhalla Drive Sanitary Sewer Extension Project, is included in the City's adopted sanitary sewer capital budget. This project includes the construction of an 8-inch sanitary sewer to serve the residential properties along Valhalla Drive that have failing septic tanks and tile fields. Two of the properties are currently within the City and the remaining parcels are township islands located within an area of Pittsfield Township that is within the future intended limits of the City of Ann Arbor. All parcels will be required to pay the fixed improvement charge in effect at the time of connection. We expect to complete the design of the project in 2010 and construct the project in 2011.
Wade Trim was approved by Council on July 30, 2008 to perform the preliminary design engineering associated with this project. The preliminary sewer route consisted of a gravity sanitary sewer crossing the University of Michigan (U of M) Golf Course. However, after the completion of the survey work and reviewing alternate routes for the sanitary sewer, we determined a gravity sewer to the east end of Valhalla, terminating at a new sanitary pump station, and pumping the effluent back up to S. Main Street along Valhalla Drive could be constructed at a lower cost and with less disturbance to the adjacent properties. The design of the sanitary pump station and preparation of maintenance of traffic plans for the work within S. Main Street were not part of the preliminary scope of services as this amendment serves to a...
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