The Work that is presented in the Bid Proposal for this Contract consists of the Contractor to furnish and install approximately 658 linear feet of 8-inch PVC, C900 sewer main, 92 linear feet of 6-inch PVC, C900 sewer service connection, abandon in place by grouting 330 linear feet of existing 8” DI sewer main, remove and dispose of 453 linear feet of. Authorization of Services: Task Order Notice to Proceed 006 dated March 22, 2024 under Term Contract 4400001418 Scope: • characterize the subsurface conditions as the currently exist; • provide pavement design recommendations; • provide shoring design recommendations; and • provide earthworks engineering and construction recommendations. 2.0 PROJECT OVERVIEW Project Name: Credit Union Drive Pipe R&R Project Site Location: Credit Union Drive between 40th Avenue and W Tudor Road in Anchorage, Alaska (Figure 1) Current Site Conditions: • There is an existing 8-inch diameter sewer main along Credit Union Drive. o It is our understanding, based on information provided by AWWU, that the bottom of the sewer main has significant corrosion along the bottom of the pipe. Proposed Improvements to Site: • Replacement and upsize of approximately 740 lineal feet of the existing sewer main to a 12” PVC, C900. o The section to be replaced starts near the intersection of Credit Union Drive and W 40th Avenue and extends south. o It is our understanding that the top of the pipe is planned to be 10 feet below the ground surface (bgs). existing 8” DI sewer main, remove and dispose 6 existing SSMH’s, construct 7 new Type A, SSMH’s. Additionally, the Work includes but is not limited to trench dewatering, a temporary sewer bypass system, topsoil and seeding, and the restoration of all affected streets.
