5. Prebid Map 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, located in western Boulder County in the vicinity of Nederland, Colorado, at elevations ranging from 7,000 to 9,000 feet. The project encompasses restoration and reclamation services for 26 mines and 2 maintenance mines primarily in the Magnolia Road area of western Boulder County. Mine features will be safeguarded using backfilling (20 sites), monolithic plugs (1), corrugated steel pipes with bat ladders (3), vertical bat grates (1), and native rock bulkhead with bat access (1). A mandatory pre-bid meeting was scheduled for January 28, 2026, at 10:00 AM. Inquiries were due via email on January 30, 2026, at 12:00 PM. Bids were due on June 1, 2026, at 4:00 PM, with bid opening occurring the following day. The contract term extends from April 26, 2026, through June 14, 2027, with a contract amount of $169,196.63.
Amendment 1 to the solicitation was posted on May 19, 2026, which revised the bid schedule and special conditions, and extended the closing date from May 26, 2026, to June 1, 2026. The solicitation documents include special conditions, project attachments, an overview map, a pre-bid map, prevailing wage determinations, bid schedules, equipment lists, safety and health provisions, and a model construction agreement with federal provisions. Bids and inquiries were to be submitted to Teresa Donaldson, the requesting office contact, at teresa.donaldson@state.co.us or 303-866-3567 X 8149. Deliverables are to be shipped to the Division of Reclamation, Mining and Safety at 1313 Sherman Street, Room 215, Denver, Colorado 80203.
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