PW2024-017_-_PROJECT_MANUAL.pdf

This is a Project Manual for the City of Tacoma, Washington, detailing the rehabilitation of the 4th Ave S Over ARGO Bridge. The project encompasses crack injection, concrete spall repair, Carbon Fiber Reinforced Polymer strengthening, partial corbel demolition, concrete overhang depth increases with new reinforced concrete and dowel connections, external post-tensioning, and expansion joint replacement. The work requires a full 77-day bridge closure with temporary traffic control and channelization. The project is located in the Industrial District along 4th Avenue South over the ARGO Yard, north of S Dawson Street and south of S Industrial Way. The scope includes rebar installation and structural steel installation as identified subcontractor work categories.

The Engineer's Estimate for this project ranges from $6,700,000 to $7,000,000. The project manual serves as the primary technical and contractual document governing bid requirements, construction specifications, and project execution standards. Bidders and subcontractors are required to be listed per project requirements, with particular attention to firms specializing in rebar and structural steel installation. The 77-day full closure timeline represents a critical project constraint requiring coordinated traffic management and community impact mitigation throughout the rehabilitation period.