796_DQ Bid Schedule_Cottonwood.pdf
PDF 135 KB Posted
- Attached to
- PKAA, Cottonwood Mine Closure Project
- Solicitation number
- DQ1 PKAA 2026000533 2
- Issued by
- Clear Creek County, Colorado
About this file
This is a bid schedule for the Cottonwood Mine Closure Project, a Colorado state and local contract opportunity managed through the Colorado Division of Reclamation, Mining and Safety (PKAA). The project encompasses mine closure work including mobilization/demobilization, safety and environmental planning, sediment and erosion control across 225 linear feet, installation of mine closures at multiple features, and maintenance of closure systems. The bid schedule identifies eleven line items, with Items 1.0 through 6.0 representing guaranteed work and Items 7.0 through 11.0 marked as not guaranteed. The project involves multiple mine features across private and public lands (USFS and BLM ownership), with specific features and closure methods detailed across five pages of the bid schedule. All bids must be submitted electronically via Colorado VSS at http://www.colorado.gov/vss, with the bid schedule updated as of February 24, 2026, and a deadline of June 29, 2026. Bidders must complete all pages and line items without amendment and provide signatures from authorized company representatives.
The bid schedule requires offerors to provide per-unit pricing for variable quantity items and lump-sum pricing for job-based items. Pricing must be entered for each mine feature listed under Items 4.0, 5.0, and 6.0, with feature-specific details including closure methods such as machine backfill, grated corrugated steel pipe with bat gate alternatives, rock bulkheads, and adit door repairs. The not-guaranteed items (5.0 and 6.0) represent contingent work that may or may not be performed depending on project needs and budget availability. Bidders must provide complete offeror information including legal business name, address, contact details, and authorized signature. No alternative bid submittal methods are permitted unless VSS is unavailable, in which case special conditions in the project documents provide alternatives.
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Text version
Submit Bids via Colorado VSS at the following link: http://www.colorado.gov/vss Submitting Bids by mail or fax is not permitted.
If VSS is unavailable, please see project Special Conditions for alternative Bid Submittal method.
Item Description Qty Unit Per Unit Price ($) Total Price ($)
Item 1.0 - Mobilize/Demobilize 1 Job N/A
Item 2.0 - Project Safety, Health and Environmental Action Plan 1 Job N/A
Item 3.0 - Sediment and Erosion Control 225 LF
Item 4.0 - Install Mine Closures (See Page 3) 1 Job N/A
Item 5.0 - Install Mine Closures - NOT GUARANTEED (See Page 4) 1 Job N/A
Item 6.0 - Install Mine Closure Maintenance (See Page 5) 1 Job N/A
Item 7.0 - Provide and Install Additional Grating - NOT
GUARANTEED
20 SQ FT
Item 8.0 - Provide and Install Additional Concrete Shaft Footers -
NOT GUARANTEED
5 LF
Item 9.0 - Install Additional Machine Backfill - NOT GUARANTEED 10 CY
Item 10.0 - Provide and Install Additional Imported Rock Fill - NOT
GUARANTEED
5 CY
Item 11.0 - Provide and Install Additional Machine Time - NOT
GUARANTEED
10 HR
Grand Total:
Legal Business Name
June 29, 2026
DQ1 PKAA 2026*0533
Cottonwood Mine Closure Project Bid Schedule
Complete all pages in the spreadsheet as applicable.
Offeror Information
Address
City, State Zip
Phone
Signer Printed Name
Title
Date
The Bid shall be signed by a person authorized to bind the Offeror.
Do not amend any part of this bid schedule all pages of this bid schedule must be returned all line items must be completed.
Updated February 24, 2026.
Signature:
Feature ID Feature Type Closure Method Ownership Bid Amount ($)
CCC139 Shaft Machine Backfill Private
CCC140 Adit Grated Corrugated Steel Pipe with Bat Grate Alternative Private
CCC141 Adit Grated Corrugated Steel Pipe with Bat Grate Alternative Private
CCC143 Stope Shaft Grate with Bat Grate Alternative Private
GC050 Shaft Machine Backfill Private
GC051 Shaft Grated Corrugated Steel Pipe with Bat Grate Alternative Private
LAR009 Adit Rock Bulkhead with Bat Grate Alternative USFS
Bid Schedule Cottonwood Mine Closure Project
DQ1 PKAA 2026*0533
Item 4.0 - Install Mine Closures:
Do not amend any part of this bid schedule all pages of this bid schedule must be returned all line items must be completed.
Total (enter here and on Bid Schedule, Item 4.0):
Feature ID Feature
Type Closure Method Ownership Bid Amount ($)
CCC136 Adit Rock Bulkhead with Bat Grate Alternative
Private
CCC137 Adit Rock Bulkhead with Bat Grate Alternative
Private
CCC142 Adit Grated Corrugated Steel Pipe with Bat Grate Alternative
Private
GC053 Shaft Machine Backfill Private
Bid Schedule Cottonwood Mine Closure Project
DQ1 PKAA 2026*0533
Item 5.0 - Safeguard Hazardous Mine Openings - NOT GUARANTEED
Do not amend any part of this bid schedule all pages of this bid schedule must be returned all line items must be completed.
Total (enter here and on Bid Schedule, Item 5.0):
Feature ID Feature
Type Closure Method Ownership Bid Amount ($)
143-061 Adit Adit Door Repair Private
161-D-32 Adit Machine Backfill Private
224-104 Shaft Machine Backfill Private
224-119 Adit Adit Door Repair Private
245-113 Adit Adit Door Repair Private
247-P-75 Shaft Panel Access Door Repair BLM
258-114 Shaft Machine Backfill Private
Bid Schedule Cottonwood Mine Closure Project
DQ1 PKAA 2026*0533
Item 6.0 - Maintenance Features - NOT GUARANTEED
Do not amend any part of this bid schedule all pages of this bid schedule must be returned all line items must be completed.
Total (enter here and on Bid Schedule, Item 6.0):
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