GOGA 336173 - Repair Conzelman Rd

The National Park Service, under the Department of the Interior, is seeking contractor responses for the repair and reconstruction of Conzelman Road at Golden Gate National Recreation Area in Marin County, California. The primary scope of work involves construction of a concrete retaining wall with deep pile foundations along a one-way segment of the roadway to address coastal bluff erosion, along with installation of a steel bridge rail and adjustment of existing guardrails. Key project requirements include the capability to fully close the roadway during construction while maintaining weekend access for cyclists and vehicles, implementation of protective measures for environmentally sensitive areas, daily documentation of ground-disturbing activities in archaeologically sensitive zones, and hazard mitigation for poison oak. The Government will evaluate responses based on contractor qualifications and capacity to execute the work, though specific evaluation criteria have not been detailed in this pre-solicitation phase. Interested contractors must submit responses to the Sources Sought Survey Questionnaire by 2:00 PM Mountain Time on May 29, 2026, to Contracting Officer Shellie Murphy at shellie_murphy@ios.doi.gov.

This opportunity carries no set-aside designation and has not identified any current contractors or incumbents. The estimated contract value ranges between $1,000,000 and $5,000,000, though the Government has indicated these figures are not binding floors or ceilings. The work must be completed within a 180 calendar day performance period, with the anticipated competitive Request for Proposals to be issued during Winter 2026 or Early 2027 for award of a single Firm-Fixed-Price contract. The applicable NAICS code is 237310 (Highway, Street, and Bridge Construction) with a $45 million size standard, and the PSC code is Z2LB (Repair or Alteration of Highways/Roads/Streets/Bridges/Railways). Bid, Performance, and Payment Bonds are anticipated to be required for contract performance.