PKAA, Mineral Mountain Mine Closure Project

The Colorado Department of Natural Resources, Division of Reclamation, Mining and Safety is soliciting competitive bids through Invitation for Bid (IFB) number PKAA 2026*0104 for the Mineral Mountain Mine Closure Project, a mine remediation and safeguarding initiative located approximately 3 miles west of Nederland and 1 mile north of Eldora in Boulder County, Colorado. The scope of work encompasses the closure and safeguarding of four adits and eighteen shafts, stopes, and prospect pits using machine backfilling, hand backfilling, polyurethane foam injection, corrugated steel pipes, bulkheads, and monolithic concrete plugs to remediate hazardous mine features within the Grand Island-Caribou mining district. Successful bidders must demonstrate prequalification by providing verifiable experience with at least two mine closure or safeguarding projects completed within the last seven years and must submit electronically through Colorado Vendor Self Service (ColoradoVSS) a complete bid package including the bid sheet, bid schedule, bid bond (5% of proposal price for bids exceeding $50,000), equipment list detailing all equipment to be deployed on the project, and prequalification documentation. The project must be completed within 40 calendar days from the Notice to Proceed, with work commencing within 10 days of notification, and the construction period is scheduled between June 15, 2026 and July 24, 2026. Key deadlines include a mandatory virtual pre-bid meeting on January 21, 2026 at 2:00 p.m. MT (pre-registration required by January 19, 2026), a written inquiries deadline of January 28, 2026 at 4:00 p.m. MT, a bid submission deadline of March 25, 2026 at 4:00 p.m. MT, and a public bid opening on March 26, 2026 at 12:00 p.m. MT conducted virtually via Google Meet. The project is subject to Davis-Bacon prevailing wage requirements, Buy America Act provisions, Buy Clean Colorado Act requirements for eligible materials regarding embodied carbon emissions, and apprenticeship utilization mandates beginning at 15 percent through June 2026, with all prevailing wage rates and fringe benefits specified in the wage determination documents provided.

The procurement includes a 5 percent bid preference for Service Disabled Veteran Owned Small Businesses that provide proper certification. The project is funded through multiple federal and state sources, including Federal grant money from the U.S. Department of Interior, Office of Surface Mining, Reclamation and Enforcement under Title IV of the Surface Mining Control and Reclamation Act, funding from the U.S. Department of Agriculture Forest Service, and Colorado Severance Tax revenue, requiring compliance with all applicable federal provisions including System for Award Management (SAM) registration, debarment verification, the Byrd Anti-Lobbying Amendment, Clean Air Act and Federal Water Pollution Control Act certifications, and Contract Work Hours and Safety Standards Act requirements. Selected contractors must furnish comprehensive insurance coverage including workers' compensation, commercial general liability of $1,000,000 per occurrence, automobile liability of $1,000,000 combined single limit, and pollution liability of $1,000,000, along with performance and labor/materials payment bonds equal to 100 percent of the contract price for awards exceeding $150,000, with 5 percent retainage withheld until project completion. Liquidated damages are assessed at $400 per day for project delays, and all contractors must comply with a comprehensive Safety, Health, and Environmental Action Plan (SHEAP) that establishes mandatory safety protocols including Part 48 training, substance abuse screening, trenching and excavation procedures, fall protection standards, White-Nose Syndrome decontamination procedures, and environmental waste management requirements. While no specific incumbent vendor or award value is identified in the solicitation documents, the project scope and complexity involving mine closure across multiple sites, prevailing wage obligations, bonding requirements, and federal funding suggest a substantial contract value, with all contract terms contingent upon State appropriation and continuing fund availability.