3. Attachment 2-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 for the State of Colorado, Division of Reclamation, Mining and Safety, for the Twin Sisters Mine Closure Project located in western Boulder County near Nederland. The project encompasses restoration and reclamation services for 26 mines and 2 maintenance mines in mountainous terrain at elevations ranging from 7,000 to 9,000 feet. Mine features will be safeguarded using multiple methods including 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 is scheduled for January 15, 2026 at 10:00 AM, with inquiries due by email on January 17, 2026 at 12:00 PM. Bids are due on June 1, 2026 at 4:00 PM, followed by bid opening on June 2, 2026. The contract term extends from July 6, 2026 to September 19, 2026.
The contract amount is $169,196.63 for the restoration and reclamation services. The solicitation includes 12 attachments covering special conditions, scope of work maps, prevailing wage determinations, bid schedules, equipment offerings, and a model construction agreement with federal provisions. Amendment 1 was posted on May 19, 2026, revising the special conditions and bid schedule, and extending the original closing date from May 26, 2026 to June 1, 2026. Inquiries should be directed to Teresa Donaldson, the purchasing agent, at teresa.donaldson@state.co.us or 303-866-3567 extension 8149. The shipping and billing address for deliverables is the Division of Reclamation, Mining and Safety at 1313 Sherman Street, Room 215, Denver, CO 80203.
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