Conlon Creek Culvert Removal & Restoration, GOGA
Closed Solicitation Posted
This opportunity was awarded. See the award notice from .
- Solicitation number
- 140P8626R0003
- Agency
-
Pacific West Region
National Park Service, Department of the Interior
- Responses due
- Set-aside
- Total Small Business
Opportunity facts
- NAICS code
- 237990 Other Heavy and Civil Engineering Construction
- PSC
- Z2KB Repair Or Alteration Of Canals
- Points of contact
Notice details come from SAM.gov. Updated .
About this opportunity
The Department of the Interior National Park Service Pacific West Region seeks culvert removal and stream restoration at Conlon Creek in Golden Gate National Recreation Area, with proposals due June 22, 2026. This is a Total Small Business Set-Aside (NAICS 237990, size standard $45 million).
Place of performance is Muir Woods National Monument, Marin County, California. Work includes removal of approximately 82 linear feet of existing culvert and concrete headwalls, installation of six rock weir structures, placement of engineered streambed material, and permanent erosion control measures across approximately 4,116 square feet of disturbed area. The permissible construction window for equipment operations in the channel is June 15 through October 15, 2026, with all work completed by October 15 to comply with environmental and fish protection requirements. Contract performance is 365 calendar days from Notice to Proceed, with work commencing within ten days of that notice.
The Government seeks offers in the $500,000 to $700,000 range. This is a firm-fixed-price award with five base line items (lump sum: Mobilization/Demobilization, Dewatering and Water Diversion Systems, Selective Demolition, Earthmoving and Construction of Weirs, and Permanent Erosion Control Treatments and Plantings) and three option line items (haul excess soils, as-built drawings, and imported streambed rock). Davis-Bacon prevailing wage rates apply per General Decision CA20260007 effective January 23, 2026. Performance and payment bonds equal to 100 percent of original contract price are required.
A mandatory site visit was scheduled for June 4, 2026, at 10:00 AM PDT (rescheduled by Amendment 0001). Evaluation factors include technical approach, schedule, project experience, key personnel experience, California Contractor State License, and past performance. Proposals require Standard Form 1442, bid bond (20 percent of total proposal price), completion of Project Experience and Past Performance questionnaires, Key Personnel Qualifications form, FAR 52.209-13 arms control certification, and FAR 52.222-38 veterans employment attestation. Offerors must submit two separate volumes: Technical and Past Performance; Business and Price.
Questions are due to Contract Specialist Quinn Rankin at Quinn_Rankin@ios.doi.gov. Amendment 0003, effective June 17, 2026, updated Attachment 13 (Questions & Answers) and Attachment 2 (Drawings). Past Performance Questionnaires must be returned to Rankin by 3:00 PM Pacific Daylight Time on June 17, 2026.
Notice text
4 versions
Update #4 · Latest ·
CONLON CREEK CULVERT REMOVAL & RESTORATION, GOLDEN GATE NATIONAL RECREATION AREA
This Amendment 0003 is to:
1. Include Attachment 13 Questions & Answers REVISED 17 June 2026.
2. Include Attachment 2 Drawings REVISED 17 June 2026.
2. No other changes have been made.
This Amendment 0002 is to:
1. Include the site visit sign-in sheet.
2. Include Attachment 13 Questions & Answers.
3. Include revised Attachment 1 Specifications.
4. Include revised Attachment 2 Drawings.
5. No other changes have been made.
This Amendment 0001 is to:
1. CHANGE THE SITE VISIT DATE from June 15 to Thursday, June 4, 2026, at 10:00 AM PDT.
2. No other changes have been made.
HOW TO ACCESS SOLICITATION DOCUMENTS: The full solicitation package (Standard Form 1442 and all associated attachments) is available for download from the Attachments section on this page. You can download each attachment individually or download all attachments as a zip file. Refer to the provisions and clauses and other attachments for additional information about this requirement and instructions on how to submit a proposal.
SITE VISIT INFORMATION: A site visit is scheduled. Information is located in Section L of the solicitation. RSVP required. While not mandatory, offerors are urged and expected to inspect the site where the work will be performed. See Section L of the solicitation for detailed information about the site visit, including meeting location.
QUESTIONS? Submit any questions regarding this solicitation in writing to Contract Specialist, Quinn Rankin, at Quinn_Rankin@ios.doi.gov and include solicitation number 140P8626R0003 in the subject line of the email.
Update #3 ·
CONLON CREEK CULVERT REMOVAL & RESTORATION, GOLDEN GATE NATIONAL RECREATION AREA
This Amendment 0002 is to:
1. Include the site visit sign-in sheet.
2. Include Attachment 13 Questions & Answers.
3. Include revised Attachment 1 Specifications.
4. Include revised Attachment 2 Drawings.
5. No other changes have been made.
This Amendment 0001 is to:
1. CHANGE THE SITE VISIT DATE from June 15 to Thursday, June 4, 2026, at 10:00 AM PDT.
2. No other changes have been made.
HOW TO ACCESS SOLICITATION DOCUMENTS: The full solicitation package (Standard Form 1442 and all associated attachments) is available for download from the Attachments section on this page. You can download each attachment individually or download all attachments as a zip file. Refer to the provisions and clauses and other attachments for additional information about this requirement and instructions on how to submit a proposal.
SITE VISIT INFORMATION: A site visit is scheduled. Information is located in Section L of the solicitation. RSVP required. While not mandatory, offerors are urged and expected to inspect the site where the work will be performed. See Section L of the solicitation for detailed information about the site visit, including meeting location.
QUESTIONS? Submit any questions regarding this solicitation in writing to Contract Specialist, Quinn Rankin, at Quinn_Rankin@ios.doi.gov and include solicitation number 140P8626R0003 in the subject line of the email.
Update #2 ·
CONLON CREEK CULVERT REMOVAL & RESTORATION, GOLDEN GATE NATIONAL RECREATION AREA
This Amendment 0001 is to:
1. CHANGE THE SITE VISIT DATE from June 15 to Thursday, June 4, 2026, at 10:00 AM PDT.
2. No other changes have been made.
HOW TO ACCESS SOLICITATION DOCUMENTS: The full solicitation package (Standard Form 1442 and all associated attachments) is available for download from the Attachments section on this page. You can download each attachment individually or download all attachments as a zip file. Refer to the provisions and clauses and other attachments for additional information about this requirement and instructions on how to submit a proposal.
SITE VISIT INFORMATION: A site visit is scheduled. Information is located in Section L of the solicitation. RSVP required. While not mandatory, offerors are urged and expected to inspect the site where the work will be performed. See Section L of the solicitation for detailed information about the site visit, including meeting location.
QUESTIONS? Submit any questions regarding this solicitation in writing to Contract Specialist, Quinn Rankin, at Quinn_Rankin@ios.doi.gov and include solicitation number 140P8626R0003 in the subject line of the email.
Update #1 ·
CONLON CREEK CULVERT REMOVAL & RESTORATION, GOLDEN GATE NATIONAL RECREATION AREA
HOW TO ACCESS SOLICITATION DOCUMENTS: The full solicitation package (Standard Form 1442 and all associated attachments) is available for download from the Attachments section on this page. You can download each attachment individually or download all attachments as a zip file. Refer to the provisions and clauses and other attachments for additional information about this requirement and instructions on how to submit a proposal.
SITE VISIT INFORMATION: A site visit is scheduled. Information is located in Section L of the solicitation. RSVP required. While not mandatory, offerors are urged and expected to inspect the site where the work will be performed. See Section L of the solicitation for detailed information about the site visit, including meeting location.
QUESTIONS? Submit any questions regarding this solicitation in writing to Contract Specialist, Quinn Rankin, at Quinn_Rankin@ios.doi.gov and include solicitation number 140P8626R0003 in the subject line of the email.
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Notice history
| Notice | Type | Posted |
|---|---|---|
| Conlon Creek Culvert Removal & Restoration, GOGA | Award Notice | |
| This notice | Solicitation | |
| Conlon Creek Culvert Removal & Restoration, GOGA | Pre-Solicitation |
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