Call 001 C26942-COMBO

The contract calls for comprehensive infrastructure upgrades at the US 6 and Wadsworth interchange in Jefferson County, Colorado, with a fixed completion date of August 17, 2029, and an estimated value of $20 million. The scope includes replacing the existing cloverleaf interchange with a tight diamond with loop design, reconstructing the bridge over Wadsworth and the McIntyre culvert, and extending all entrance and exit ramps. The project connects the existing six-lane roadway segments between 8th and 4th Avenues in both directions and installs a 10-foot multi-use path along both sides of Wadsworth. Extensive site work includes clearing and grubbing, removal of trees, culverts, manholes, pipes, fiber optic cables, walls, guardrails, and asphalt, alongside large-scale earthwork involving over 24,000 cubic yards of structure excavation and shoring across 17 designated areas. Drainage systems will be upgraded with reinforced and plastic concrete pipes ranging from 12 to 42 inches, alongside water service connections and welded steel piping. Structural components include prestressed concrete beams, epoxy-coated reinforcing steel, galvanized structural steel, anti-graffiti concrete coatings, bridge expansion joints, and pedestrian railings. Auxiliary elements such as Ethernet switches, glazing panels, sediment control measures, erosion mats, temporary stream crossings, and automated irrigation systems are also part of the scope. The project is procured by the Colorado Department of Transportation under solicitation number C26942-COMBO, with bidding restricted to pre-qualified contractors. Attendance at the mandatory pre-bid meeting held on May 29, 2026, is required for bid eligibility, with both in-person and virtual participation options available, the latter requiring full contact information submission. Bidders must submit a guaranty equal to 5% of their total bid, and proposals must be submitted through the CDOT DBE System portal by the deadline of June 11, 2026, at 10:00 AM.