PoughkeepsieAmend1.pdf
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- Solicitation number
- IFB1 PKAA 2015000040 3
- Issued by
- Rio Blanco County, Denver City, Colorado
About this file
This document is Amendment No. 1 to bid solicitation PKA-15-745 for the Poughkeepsie Mine Safety Closure Project, issued by the Colorado Division of Reclamation, Mining & Safety under the office of the Governor. The amendment provides clarifications and modifications to the original bid documents for mine closure and remediation work at the Poughkeepsie Mine site. Key changes include revised specifications for multiple features, such as Feature 11a converting to a Rebar Shaft Grate with I-Beam design, Feature 14 changing to Polyurethane Foam closure requiring approximately 30 cubic yards of material, and Feature 16 shifting from Corrugated Steel Pipe to a 20-foot length ADS N-12 Corrugated HDPE Pipe with specific drainage requirements. Additional features (33, 34, and 36) now offer a Grated Adit closure option per specification SWS 11. Updated maps, mine site field forms, and revised bid schedules are available via the VSS website. A pre-bid meeting was held with an attendance list provided. The bid submittal deadline is April 21, 2015 at 4:00 p.m., with bid opening scheduled for April 22, 2015 at 10:00 a.m. Bidders are encouraged to submit via the VSS system, and all previous terms and conditions of the original Invitation for Bid remain in effect except as modified by this amendment.
The amendment addresses technical specifications and project constraints including wetland protection requirements for Features 28-30, which prohibit equipment crossing of wetland areas. Helicopter access and material staging areas require coordination with the Project Manager, U.S. Forest Service Grand Mesa, Uncompahgre and Gunnison National Forest, and U.S. Bureau of Land Management Tres Rios Field Office, with helicopters required to be capable of lifting loads at 12,000 feet elevation. Bidders must acknowledge receipt and acceptance of the amendment on the bid form and submit the revised bid schedule by the April 21, 2015 deadline to Teresa Ryan at the Division of Reclamation, Mining and Safety in Denver, Colorado.
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1313 Sherman Street, Room 215, Denver, CO 80203 P 303.866.3567 F 303.832.8106 http://mining.state.co.us
John W. Hickenlooper, Governor | Mike King, Executive Director | Virginia Brannon, Director
1313 Sherman Street, Room 215
Denver, CO 80203
DATE: February 18, 2015
TO: All Bidders on the Poughkeepsie Mine Safety Closure Project
FROM: Jeff Litteral, Division of Reclamation, Mining & Safety
RE: Amendment No. 1 to PKA-15-745
Thank you for your attendance at the Pre-Bid Meeting. The attendance list is attached. The following clarifications and amendments should be noted and incorporated into the bid documents:
1. A REVISED Bid Schedule is attached to this Amendment. Please submit your bid using the REVISED Bid Schedule.
2. The following documents will be available as attachments via VSS website:
https://codpa-vss.hostams.com
Updated map clarifying features 32 and 36.
Mine Site Field Forms (MSFF) giving mine site information and pictures to sites not visited during prebid. NOTE: Feature 12 eroded dimensions updated from thirty five feet to fifteen feet (35’ to 15’).
3. Clarification for all features calling for Bat Grate with Access Door. The specifications for SWS Section 11 Grated Adit with Section 13 Bat Grate Alternative and Standard
Drawing No. 6 Sheet 2 will be required.
4. Feature No. 11a. Change to a Rebar Shaft Grate (Pinned) with I-Beam (see attached specification and drawings). Six (6) ten feet to twelve feet (10’ – 12’) W 8 x 10 steel I-
Beams will be anchored to span the entire sixty (60’) length of the stope opening, spaced twelve feet apart. A grade beam anchored in concrete will not be required in the vertical opening. The rebar will drape over the existing rock bridge to enclose the vertical opening connected to the stope, additionally supported by four (4) - ten feet (10’) I-beams spaced ten feet (10’) apart and anchored by a concrete footer, per SWS 11.
5. Feature 14. Change to Polyurethane Foam closure SWS Section 9 with bottom form at approximately fifteen feet (15’) below ground surface. Approximately thirty (30) cubic yards of PUF will be required. A drainage pipe per SWS 9.6.4 will be required.
https://codpa-vss.hostams.com/
6. Feature 16. Change from Corrugated Steel Pipe to a twenty feet (20’) length, two-feet
(2’) diameter ADS N-12 Corrugated HDPE Pipe. A metal grate covering the upper 1.5 feet (1.5’) will be installed within the pipe and adhered by running 3/4 inch stainless steel bar through the pipe and into the middle of the three feet (3’) depth of grouted rock required at the front of the backfill. The lowest six inches (6”) of the pipe will be open, allowing water to flow freely. All other requirements for SWS 10 will apply.
7. Features 28-30. Clarification; No crossing of wetland area with equipment will be allowed.
8. Change Feature 32 option from Bulkhead to Steel Grated Shaft Closure, per SWS 8, circle option offered Backfill or Grate, on REVISED Bid Schedule.
9. Features 33, 34 and 36 additional closure option Grated Adit per SWS 11, no access door required. Circle option offered on the REVISED Bid Schedule.
10. Feature 35. Include additional footer with drain pipe.
11. All helicopter access and material staging areas must be coordinated with Project
Manager and the U.S. Forest Service Grand Mesa, Uncompahgre and Gunnison National
Forest and/or U.S. Bureau of Land Management, Tres Rios Field Office. If helicopter is used it must be capable of lifting loads at 12,000 feet in elevation.
12. REMINDER: The Bid Submittal date is April 21, 2015 by 4:00 p.m. and the Bid Opening date is April 22, 2015 at 10:00 am.
Bidders are encouraged to utilize the VSS system for Bid Submittal:
https://codpa-vss.hostams.com
All terms and conditions of the Invitation for Bid other than as changed by this Amendment remain the same.
Receipt and acceptance of this amendment shall be acknowledged on the bid form and by submitting the REVISED Bid Schedule.
Return by April 21, 2015 at 4:00 P.M. to:
Teresa Ryan Division of Reclamation, Mining and Safety 1313 Sherman St., #215 Denver, CO 80203 https://codpa-vss.hostams.com/
File details come from the government source that posted it. Updated .