Description: The solicitation (PKAA, Cottonwood Mine Closure Project) is an Invitation for Bid to perform mine-closure and maintenance work including mobilization/demobilization, safety and health planning, sediment and erosion control, and installation/repair of mine closures (shafts, adits, stopes). The bid schedule lists multiple line items (11 items noted) with detailed unit pricing required and submission is required through the Colorado VSS procurement system. The project is for the State of Colorado and includes standard contract attachments such as special conditions, appendices, Davis-Bacon wage rates, and a model construction agreement.
State · CO, US
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Colorado Department of Natural Resources
State AgencyCO
Jun 29, 2026
Closes
Aug 19, 2026
The project work will include safeguarding twelve (12) new features and six (6) maintenance features employing a variety of closure meth.
Colorado Division of Reclamation, Mining and Safety
State AgencyCO
Jun 30, 2026
Closes
Aug 19, 2026
The PKAA Cottonwood Mine Closure Project is a construction solicitation issued by the Colorado Division of Reclamation, Mining and Safety (DRMS) for the closure and safeguarding of abandoned mine features at the Cottonwood Mine located in Clear Creek and Gilpin Counties, Colorado. The project involves work on twelve new mine features and six maintenance features using standard abandoned-mine closure and reclamation methods. This is part of the State's Inactive Mine Reclamation Program (IMRP) and is posted on the Colorado Vendor Self Service (VSS) system.
StateCO
Jul 23, 2026
Closes
Aug 24, 2026
The State of Colorado is soliciting bids from a contractor for the PKAA, DRUM West Calamity Outlaw Project, involving installation of an approximately 17-foot-long and 10-foot-high welded steel fence. The contractor must provide all labor, materials, and appurtenances, including structural steel, pickets, rails, and concrete, while meeting specified construction and safety requirements. This is an open Invitation for Bid for a construction project, with mandatory pre-bid attendance and required bid, equipment, qualification, bonding, insurance, and compliance documents; it is not a grant program.
Colorado Department of Natural Resources
State AgencyCO
Jul 24, 2026
Closes
Aug 24, 2026
The Colorado Department of Natural Resources is soliciting bids for safeguarding 56 mine features, including prospect adits, a shaft, subsidence features, and adits, on Bureau of Land Management property in Mesa County. The work includes closure and safety measures for the identified mine features, and a required virtual pre-bid meeting is scheduled for August 7, 2026, at 10:00 a.m. Bids are due August 24, 2026, at 4:00 p.m. Mountain Time, so the solicitation remains open as of August 1, 2026.
Procurement and program contacts connected to State of Colorado.
