9. SHEAP DQ1 2026-0289.pdf
PDF 36 KB Posted
- Attached to
- PKAA, Twin Sisters Mine Closure Project
- Solicitation number
- DQ1 PKAA 2026000289 2
- Issued by
- Boulder County, Colorado
About this file
This is a solicitation document (DQ1 2026-0289) issued by the Colorado Division of Reclamation, Mining and Safety for the Twin Sisters Mine Closure Project. The project is located in western Boulder County in the vicinity of Nederland in mountainous terrain at elevations ranging from 7,000 to 9,000 feet and involves restoration and reclamation services for 26 mines and 2 maintenance mines primarily in the area of Magnolia Road. The mine openings, which were created by underground mining operations from the 1860s until the mid-1960s for tungsten, gold, and silver extraction, are located on U.S. Forest Service land, Boulder County land, and private claims. The project will safeguard mine features using backfilling (20 features), monolithic plugs (1), corrugated steel pipes with bat ladders (3), vertical bat grates (1), and native rock bulkhead with bat access (1), with both maintenance features requiring backfilling. The pre-bid meeting is mandatory and scheduled for January 28, 2026 at 10:00 AM, with inquiries due by email on January 30, 2026 at 12:00 PM. Bids are due on June 3, 2026 at 4:00 PM, with bid opening on June 4, 2026. The contract amount is $169,196.63, with a service start date of June 5, 2026 and completion by September 1, 2026.
Amendment 1 was posted to the Virginia Solicitations System on May 19, 2026, which revised the bid schedule and special conditions. The closing date was extended from May 26, 2026 to June 1, 2026. Bidders must submit responses through the Virginia Solicitations System, with contact information available through Teresa Donaldson at the Division of Reclamation, Mining and Safety, reachable at 303-866-3567 extension 8149 or teresa.donaldson@state.co.us. Required documents include special conditions, bid schedules, equipment offerings, prevailing wage determinations, and a model construction agreement with federal provisions.
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