Summit Forest Keystone Amendment 1.pdf

PDF 166 KB Posted

Attached to
2017, PKAA, 1000, Summit Forest Keystone Project
Solicitation number
DQ1 PKAA 2016001661 2
Issued by
Summit County, Denver City, Colorado

About this file

This is Amendment No. 1 to an Invitation for Bid issued by the Colorado Division of Reclamation, Mining & Safety for the Summit Forest Keystone Project (PKA-16-1289). The project involves the closure and remediation of multiple mine features in Summit County, Colorado, funded through Office of Surface Mining (OSM) and United States Forest Service (USFS) programs. The work encompasses 12 mine features requiring various closure methods including shaft backfilling, adit closures with bat grates and corrugated steel pipe (CSP) installations, crown hole backfilling, stope backfilling, and polyurethane foam sealing. The bid submittal deadline is Tuesday, July 19, 2016 at 4:00 p.m., with bid opening scheduled for Wednesday, July 20, 2016 at 10:00 a.m. Hard copy bids must be submitted via fax, mail, courier service, or in person to Teresa Ryan at the Denver office; electronic and emailed bids will not be accepted. A pre-bid meeting was held prior to this amendment.

The amendment provides critical clarifications and modifications to the original bid documents for 10 of the mine features, including revised depth measurements for shafts SF04 and SF05, amended work specifications for adit closures SF06, SF07, SF15, and SF20 that specify CSP dimensions and bat ladder configurations, restrictions on equipment access for features SF08, SF09, and SF10 requiring hand tools and manual labor only, provisions for animal access at SF16 using flexible HDPE pipe, dimensional corrections for the open stope at SF18 with trail crossing restrictions, and protective measures for existing vegetation. Bidders are required to acknowledge receipt and acceptance of the amendment on the bid form and submit the revised Bid Schedule. The bid schedule requests pricing for mobilization/demobilization, project safety plan development, installation of 12 individual mine closures, and additional equipment time (20 hours not guaranteed). Funding is provided through OSM and USFS resources for Summit County projects.

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Summit Forest Keystone Project.pdf PDF
Summit Keystone Forest Attendees list.pdf PDF

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Text version

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 | Robert W. Randall, Executive Director | Virginia Brannon, Director

DATE: July 5, 2016

TO: All Bidders on the Summit Forest Keystone Project

FROM: Allen Sorenson, Division of Reclamation, Mining & Safety

RE: Amendment No. 1 to PKA-16-1289

Thank you for your attendance at the Pre-Bid Meeting. The bid submittal date is Tuesday, July 19, 2016 at 4:00 p.m. The bid opening date is Wednesday, July 20, 2016 at 10:00 a.m. The VSS system is not currently accepting electroinc bids. Hard Copy bids must be submitted via Fax, Mail/Courier service, or in person to Teresa Ryan in our Denver office at 1313 Sherman Street Room 215, Denver, CO 80203. Electronic bids and emailed bids will not be accepted. The following clarifications and amendments should be noted and incorporated into the bid documents:

1. The following Access Deterrent shall be noted for Features SF04, SF05, and SF06: Large boulders currently block the access road. Boulders to be set aside during construction, and replaced following construction.

2. The following change to the description of Feature SF04 shall be noted: Depth to Plug: 15 feet, Depth of Opening: 50 feet.

3. The following change to the description of Feature SF05 shall be noted: Depth of Opening:

65 feet.

4. The Work Description for Feature SF06 is amended as follows: Construct a corrugated steel pipe adit closure with bat ladder in accordance with Corrugated Steel Pipe Adit Closure Specifications (Section 10.0, Standard Work Specifications, Standard Drawing #5 General Bid Specifications, 2009) and Bat Grate Alternative (Section 13.0, Standard Work Specifications, Standard Drawing #6-2 General Bid Specifications, 2009). 3/4" X 3" steel cross bars are specified. A thirty-six inch (36”) diameter Corrugated Steel Pipe with minimum ten feet (10’) in length is required. Concreted durable rock surround is required.

No access is required. A drain pipe is required. Care shall be taken to prevent damage to the mature spruce tree at the adit portal. Vertical #5 rebar across the lowest four feet of the bat ladder is not required.

5. The Work Description for Feature SF07 is amended as follows: Concrete footer with drain pipe is required. Vertical #5 rebar across the lowest four feet of the bat ladder is not required.

6. The Work Descriptions for Features SF08, SF09, and SF10 are amended as follows: Hand tools and manual labor are required to backfill these Mine Features. Trucks and mechanized equipment must remain on or adjacent to Morgan Gulch Road and foot access only is allowed during work at these Mine Features, unless otherwise authorized by the

PROJECT MANAGER.

7. The Work Description for Feature SF15 is amended as follows: Concrete footer with drain pipe is required. Vertical #5 rebar across the lowest four feet of the bat ladder is not required.

8. The Work Description for Feature SF16 is amended as follows: To maintain animal access and egress to the Mine Feature, a flexible, corrugated HDPE pipe shall be inserted into the opening prior to backfilling. The pipe shall be six inch diameter (6” dia.), and ten feet (10’) in length.

9. The following change to the description of Feature SF18 shall be noted: The Eroded Dimensions of the upper 15 feet of the open stope are 25 ft. by 12 ft. The dimensions of the lower 20 feet of the open stope are 8 ft. by 7 ft. The Work Description for Feature SF18 is amended as follows: CONTRACTOR may not cross Side Door recreation trail.

Grade over prospect pits along equipment access route designated by PROJECT MANAGER. Preserve existing warning signs posted at Mine Feature and give to

PROJECT MANAGER.

10. The Work Description for Feature SF20 is amended as follows: A thirty-six inch (36”) diameter Corrugated Steel Pipe with minimum twenty feet (20’) in length is required.

Access is required. A drain pipe is required. Vertical #5 rebar across the lowest four feet of the bat ladder is not required.

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.

3/12/13

Return by July 19, 2016 at 4:00 P.M. to: Receipt of Addenda Nos._______________ is hereby acknowledged Submit Bids by mail, fax, overnight service, or in person to:

Teresa Ryan Division of Reclamation, Mining and Safety 1313 Sherman St., #215 Denver, CO 80203 Fax (303) 832-8106

SUMMIT FOREST KEYSTONE PROJECT

Revised (July 5, 2016) Bid Schedule

PKA-16-1289

ITEM DESCRIPTION QTY UNIT UNIT PRICE AMOUNT

1. Mobilization/Demobilization 1 Job $ N/A $

2. Project Safety Plan 1 Job $ N/A $

3. Install Safety Closures (total from page 2) 1 Job $ N/A $

4. Additional Equipment Time – NOT GUARANTEED 20 Hours $________/Hr. $

GRAND TOTAL $

Contractor_____________________________________ Date_________________________

Signature _____________________________ Phone___________________________

Address _______________________________________________________________

DO NOT AMEND ANY PART OF THIS BID SCHEDULE

ALL PAGES OF THIS BID SCHEDULE MUST BE RETURNED

ALL LINES ITEMS MUST BE COMPLETED

Page 1 of 2 Page(s)

3/12/13

SUMMIT FOREST KEYSTONE PROJECT

Revised (July 5, 2016) Bid Schedule

PKA-16-1289

Item 3 - Install Mine Closures:

ID

Feature

Closure Work

Bid Amount

County

Funding

SF04

Shaft

Backfill

Summit OSM/USFS

SF05

SF06

Adit

Bat Grated

CSP

SF07

Bat Grate

SF08

Crown Hole

SF09

SF10

SF15

Bat Grate

SF16

SF17

SF18

Stope

Summit OSM

SF20

Bat Grated

CSP

w/Access

Summit

OSM/USFS

SF21

Polyurethane Foam

Total (Enter here and on Page 1 of Bid Schedule, Item 3) $______________________

DO NOT AMEND ANY PART OF THIS BID SCHEDULE

ALL PAGES OF THIS BID SCHEDULE MUST BE RETURNED

ALL LINES ITEMS MUST BE COMPLETED

Page 2 of 2 Page(s)

Summit Forest Keystone Amendment1_final
Summit Forest Keystone BIDSCHEDULE_revised_TCT

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