Lower Horse Gulch Road Drainage Improvement

The City of Durango, Colorado is requesting sealed bids for the Lower Horse Gulch Road Drainage Improvement project (IFB 2026-0038-0133), a Parks, Open Space & Trails maintenance initiative, with bids due August 27, 2026 at 3:00 p.m. via Rocky Mountain E-Purchasing. Local and regional bidder preferences apply: La Plata County bidders receive a 5% preference (not to exceed $100,000), and Region 9 Colorado bidders receive a 3% preference (not to exceed $40,000), both measured against non-resident bids.

The scope includes procurement, furnishing, and installation of two prefabricated pedestrian trail bridges with concrete grade beam foundations; excavation and placement of aggregate and native soils; and construction of a dry stacked boulder wall. Work is performed at the Horse Gulch trailhead in Durango, Colorado.

Bidders must submit a 5% bid bond with their proposal and, if selected, furnish 100% Performance and Labor & Material Payment Bonds. The successful contractor must obtain a City of Durango Business License and complete a W-9 form prior to project commencement. Required insurance includes Workers' Compensation, Comprehensive General Liability (minimum $1,000,000 each occurrence / $2,000,000 aggregate), and Comprehensive Automobile Liability (minimum $500,000 each occurrence / $1,000,000 aggregate), with the City named as additional insured. Payment terms are net 30 days from project manager acceptance of monthly pay applications, with 2.5% retainage held until final acceptance.

Evaluation criteria are ability to perform the work, quality of previous performance, commitment to meeting the project timeline, and total cost to the City. Construction is scheduled to commence by September 14, 2026 and conclude by December 12, 2026. A non-mandatory pre-bid walk is scheduled for August 11, 2026 at 10:00 a.m. at the trailhead parking lot. Questions are due August 14, 2026 at 3:00 p.m., with the final addendum issued by August 18, 2026 at 3:00 p.m. Notice of Award is anticipated the week of September 1, 2026.