city of chicago st. barcule bridge over calumet river rehab77376.pdf

This document is a scope of work for the City of Chicago's rehabilitation project of the 100th Street Bascule Bridge over the Calumet River in Illinois. The structural scope encompasses comprehensive replacement and repair work including both fixed approach span and movable span framing systems, replacement of floorbeams, stringers, sidewalks, decking, and railing components. Additional work includes replacement of movable span truss members over the river, repair of rear end truss members, replacement of rear and center breaks, bridge approach slabs, counterweight pits, river piers, abutments, and the bridge bumper system. The project also requires repairs to existing steel substructure units designated to remain, including anchor column cross girders, anchor columns, trunnion cross girders, longitudinal box girders, and longitudinal plate girders, with repairs determined as necessary upon field discovery.

The document does not specify pricing terms, contract duration, response deadlines, bid submission dates, site visit requirements, or bidder meeting schedules. No set-asides, incumbent contractor information, or specific funding amounts and sources are detailed in the available file excerpt. The rehabilitation project represents a significant capital infrastructure investment by the City of Chicago focused on restoring the structural integrity and functionality of this critical bridge crossing over the Calumet River.