Bid guide
How to bid on the Cottonwood Mine Closure Project for Colorado's DNR
What the agency is buying
Colorado's Division of Reclamation, Mining & Safety is seeking construction services for the Cottonwood Mine Closure Project. This work includes land restoration and reclamation. Vendors interested in environmental remediation and construction projects should review this opportunity.
Key dates and deadlines
This solicitation was published on June 29, 2026. The deadline for responses is August 19, 2026, at 6:00 PM ET. All responses must be submitted through the Colorado VSS portal by this time.
Who this opportunity suits
This opportunity is suitable for construction firms specializing in land restoration, reclamation services, and environmental remediation. The commodity line for this project is "Restoration/Reclamation Services of Land and Other Properties."
How to respond
To access the solicitation, go to the Colorado VSS (Vendor Self Service) portal. Once there, open "View Published Solicitations." Search for solicitation number DQ1-PKAA-2026000533-1 to find the full posting and its 10 associated documents. To download documents or submit your response, you will need to register a free vendor account on the portal. Follow the instructions within the solicitation for submitting your bid before the deadline.
Tips for a competitive response
When preparing your response, carefully review all 10 documents provided with the solicitation. Pay close attention to the scope of work for land restoration and reclamation to ensure your proposal directly addresses all requirements. Clearly outline your firm's experience with similar mine closure or land reclamation projects, highlighting any specialized equipment or techniques you would use. Ensure your submission is complete and submitted well before the August 19, 2026 deadline to avoid any last-minute technical issues with the portal.
See the live bid — deadline, agency details, and how to respond
Dates and requirements can change via addenda; always verify on the bid page and at the original source before responding.
View this bid on BiddingSimpleThis guide was prepared by BiddingSimple from the solicitation’s public posting. It is not official guidance from DNR - Division of Reclamation Mining & Safety; the original posting controls.