Summary of Bridge Maintenance Services Contract Drawings

This document consists of technical drawings and design specifications prepared by the Regional Transportation District (RTD) in Denver, Colorado for bridge maintenance services across the West Corridor Light Rail Transit system. The drawings depict the physical characteristics, structural details, and maintenance access points for multiple bridges including LRT-COLFAX, LRT-6TH-INDIANA, LRT-WADSWORTH, and LRT-CML. The flattened drawings provide contractors with essential visual references for understanding bridge configurations, overhead clearances, drainage systems, expansion joints, bearing locations, and utility attachments that will require maintenance under the contract. These technical plans are intended to support contractors in developing accurate bids and executing maintenance work orders on a fixed-price basis. The pre-bid meeting is scheduled for August 14, 2025, with bids due 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 final contractor selection anticipated by September 18, 2025.

The drawings serve as reference materials for contractors performing cyclic and as-needed maintenance activities including vegetation control, cleaning, power washing, drain maintenance, expansion joint sealing, concrete repair, bearing maintenance, sign installation, and utility attachment repairs. Contractors must possess a five-year track record in bridge maintenance and comply with Federal Railroad Administration and Federal Transit Administration regulations. The contract includes a mandatory 15% Small Business Enterprise (SBE) set-aside requirement, with bidders required to demonstrate good faith efforts to meet SBE participation goals to be considered responsive. Bid security equal to 5% of the bid amount is required. Contractors must complete RTD's On Track Safety Training and obtain necessary Right-of-Way Access Permits and Building and Grounds Access Permits. Work will be performed during nights, weekends, or off-peak hours to minimize service disruptions, with considerations for overhead catenary systems operating at 750 volts DC for light rail and 25,000 volts AC for commuter rail.