Colfax Curved Rail Replacement and Spare, Materials only

The Regional Transportation District (RTD) in Denver, Colorado is requesting bids on materials for the Colfax Curved Rail Replacement project under IFB 226DR014, with bids due October 6, 2026 at 2:00 p.m. and inquiry period closing September 24, 2026 at 2:00 p.m. RTD encourages SBE participation but has not specified an SBE participation goal.

The scope covers procurement of materials only for replacement of a curved light rail track section under the Colfax bridge near Auraria West Station: pre-curved running rail and restraining rail for two curves (TAC2 and TBC3, including spirals), and eight insulated joint kits (four single-rail and four double-rail units). All rail must be new premium or standard high-strength 115 RE steel conforming to AREMA Chapter 4, Part 2, Section 2.1. Running rail extends 20 feet past restraining rail with 1-inch gaps for field welding; restraining rail extends 10 feet past curve end with 2-inch flangeway and separator block assemblies at 4-foot maximum centers. Restraining rail totals 790.09 feet across both tracks. Insulated joint kits must be sourced from Alleghany Rail Products, American Track Systems, Portec, Railway Bonded Insulated Joints, or an approved equal, including complete kits with adhesives, bars, washers, bolts, and collars. Joint bars must be 36-inch, 6-hole bars with 1-inch huckbolts of A325 or Grade 8 steel. Bidders must submit shop drawings within 60 days of Notice to Proceed, with RTD approval required within 15 days.

Delivery is FOB to RTD's CML Storage Yard at 1721 W. Colfax Avenue, Denver, Colorado no later than December 31, 2026. Contract term is three months from Notice to Proceed with potential option periods. Award goes to the responsive, responsible low bidder. Bids must remain valid 90 days from due date. RTD reserves the right to reject all bids. Anticipated award is October 12, 2026.