225DO005_West_Corridor_drawings_flattened_-_Bridge_Maintenance_Services.pdf

This is a technical drawing document for the Regional Transportation District (RTD) in Denver, Colorado, specifically depicting bridge maintenance service requirements across the West Corridor Light Rail Transit system. The drawings illustrate multiple bridges requiring maintenance services, including LRT-COLFAX, LRT-6TH-INDIANA, LRT-WADSWORTH, and LRT-CML structures. The solicitation, identified as contract 225DO005, seeks an on-call bridge maintenance services contractor to perform cyclic and as-needed maintenance activities across all RTD-owned bridges, adjacent structures, and culverts. Services include vegetation control, general cleaning, power washing, drain maintenance, expansion joint cleaning and sealing, concrete repair, bearing maintenance, sign installation, erosion repair, and utility attachment repairs. A non-mandatory pre-bid meeting is scheduled for August 14, 2025 at the northeast corner of West Colfax Avenue and North 6th Avenue, with bids due on September 11, 2025 at 2:00 PM through RTD's online procurement portal. The contract term is three years with two optional one-year extensions, with anticipated final contractor selection by September 18, 2025. Work will be performed on a work order basis during nights, weekends, and off-peak hours to minimize service disruptions.

The contract requires a fixed-price basis with payments made according to quantities of work completed based on unit prices established in the bid. A mandatory 15% Small Business Enterprise (SBE) set-aside requirement applies, with bidders required to demonstrate good faith efforts to meet this participation goal to be considered responsive. Bid security equal to 5% of the bid amount is required. Contractors must demonstrate a five-year track record in bridge maintenance, comply with Federal Railroad Administration and Federal Transit Administration regulations, and complete RTD's On Track Safety Training. Right-of-Way Access Permits and Building and Grounds Access Permits are necessary for work execution. The work involves maintaining critical transportation infrastructure with complex operational considerations, including overhead catenary systems operating at 750 volts DC for light rail and 25,000 volts AC for commuter rail.