Z--GOGA 336173 - Repair Conzelman Rd

Sources Sought Notice / Questionnaire

This Sources Sought Notice (SSN) is for market research purposes to determine the interest and qualifications of businesses for a potential future solicitation. The National Park Service (NPS) is seeking information to develop an acquisition strategy for the repair of Conzelman Road, specifically addressing erosion threatening roadway stability.

The project involves constructing a concrete retaining wall with deep pile foundations along a segment of Conzelman Road in the Golden Gate National Recreation Area, Marin County, California. The existing roadway is partially undermined due to coastal erosion. The project also includes adjusting existing guardrails and affixing a steel bridge rail to the top of the new wall. The estimated magnitude of the total price is between $1,000,000 and $5,000,000, though this is not a ceiling or floor.

• NAICS Code: 237310 – Highway, Street, and Bridge Construction ($45M Size Standard).

• Bonding: Bid, Performance, and Payment Bonds are anticipated.

• Period of Performance: Anticipated at 180 calendar days.

• Location: Golden Gate National Recreation Area, Marin County, California.

• Project Conditions: Roadway may be fully closed during construction, with efforts to reopen for weekend traffic. Protective measures for the environment and sensitive resources are required. Daily work schedules will be necessary for work in archeologically sensitive areas. Natural hazards like poisonous plants may be present.

• Coordination: Necessary for equipment inspections and material delivery, and to minimize visitor impact as the park will remain open.

• SSN Response: Interested contractors must complete and submit the attached Sources Sought Survey Questionnaire.

• Response Due Date: 29 May 2026, 2 PM Mountain Time (MT).

• Submission Method: Email the completed questionnaire to shellie_murphy@ios.doi.gov.

• Anticipated RFP Issuance: Winter 2026/Early 2027.

• Contract Type: Single Firm-Fixed-Price (FFP) contract.

The survey requests information on company name, contact details, prime contractor experience, bonding capacity, experience with retaining walls on deep pile foundations, managing bicycle traffic, and relevant small business certifications. It also asks what factors influence commitment to submitting a proposal.

Sources Sought Notice

This notice is for market research purposes to understand potential businesses and their qualifications for a project to repair Conzelman Road at the Golden Gate National Recreation Area. The National Park Service (NPS) will use this information to develop an acquisition strategy, including potential set-aside determinations for small businesses. Proposals are not being requested at this time.

• Construction of a concrete retaining wall with deep pile foundations to address erosion and stabilize the roadway.

• The wall will have a steel bridge rail affixed to the top, and existing guardrails will be adjusted.

• The project is located on a one-way/single-lane segment of Conzelman Road.

• Protective measures are required to ensure the surrounding area remains undisturbed, with specific attention to sensitive resources.

• Daily work schedules will be required for work in archeologically sensitive areas.

• The roadway may be closed during construction but should be opened for bicycle and motor vehicle traffic on weekends.

• The park will remain open during construction, requiring activities to be structured to minimize visitor impact.

• NAICS Code: 237310 – Highway, Street, and Bridge Construction

• Size Standard: $45M

• Estimated Total Price Range: $1,000,000 - $5,000,000 (Note: This is for informational purposes and not a ceiling or floor).

• Anticipated Period of Performance: 180 calendar days.

• Contract Type: Anticipated to be a single Firm-Fixed-Price (FFP) contract.

• This is a Sources Sought Notice; proposals are not requested. Responses are requested from both Large and Small Businesses.

• Interested contractors should complete and submit the attached Sources Sought Survey Questionnaire.

• Response Deadline: 2 PM Mountain Time (MT) on May 29, 2026.

• Submission Method: Email the questionnaire to shellie_murphy@ios.doi.gov.

• Responses will help determine the possibility of a Small Business or other Socio-Economic Set-Aside for the future solicitation.

• Bonding: Bid, Performance, and Payment Bonds are anticipated to be required.

• Construction site is within 12 miles of nearest suppliers and lodging facilities.

• Natural Hazards: Project area may contain irritating and poisonous plants (e.g., poison oak).

• Solicitation anticipated around Winter 2026/Early 2027.

Sources Sought Notice

This Sources Sought Notice (SSN) is for market research purposes to determine the availability and qualifications of businesses for a project to repair Conzelman Road. The National Park Service (NPS) is seeking information to develop an acquisition strategy and determine potential set-aside opportunities. Proposals are not being requested at this time.

• Construction of a concrete retaining wall with deep pile foundations.

• Shoring up a roadway prism at an erosion site along a steep coastal ridge.

• Affixing a steel bridge rail to the top of the wall.

• Adjusting existing steel guardrail to align with the new bridge rail.

• Anticipated contract type: Firm-Fixed-Price (FFP).

• Anticipated period of performance: 180 calendar days.

• Estimated total price range: Between $1,000,000 and $5,000,000 (this is not a ceiling or floor).

• Anticipated solicitation issuance: Winter 2026/Early 2027.

• Anticipated award: Single contract.

• This is a market research notice; proposals are not requested.

• Interested contractors should complete and submit the attached Sources Sought Survey Questionnaire.

• Response deadline: 2 PM Mountain Time on May 29, 2026.

• Submission method: Email the questionnaire to shellie_murphy@ios.doi.gov.

• Responses are requested from both Large and Small Businesses.

• The NPS will analyze responses to determine the possibility of a Small Business or other Socio-Economic Set-Aside for the future solicitation.

• Bonding: Bid, Performance, and Payment Bonds are anticipated to be required.

• NAICS Code: 237310 – Highway, Street, and Bridge Construction.

• Size Standard: $45M.

• Project Location: Golden Gate National Recreation Area, Marin County, California.

• The roadway can be fully closed during construction, but weekend openings for bicycle and vehicle traffic are desired. Minimizing visitor impact is a priority.

• The site may contain sensitive resources requiring protective measures and may have natural hazards like poisonous plants.