Z--GOGA 336173 - Repair Conzelman Rd

The Department of the Interior, through its National Park Service and Denver Service Center Contracting Services Division, is conducting market research for the Repair Conzelman Rd project under solicitation number 140P2026R0072, a pre-solicitation notice issued to gauge industry interest and capabilities prior to a formal RFP anticipated in Winter 2026 or early 2027. The project entails constructing a concrete retaining wall along a single-lane section of Conzelman Road within the Golden Gate National Recreation Area in Marin County, California, to address coastal erosion threatening roadway integrity. Work includes deep pile foundations, installation of a steel bridge rail, and realignment of existing guardrails, with a contracted performance period of 180 calendar days. The contract is expected to be awarded as a Firm-Fixed-Price arrangement with an estimated value between $1 million and $5 million. Contractors must ensure park operations continue uninterrupted, manage bicycle traffic, mitigate natural hazards such as poison oak, and implement protective measures for archaeologically sensitive areas, including submission of daily schedules detailing work methods and equipment. All work must comply with federal construction standards under NAICS code 237310, and performance and payment bonds will be required. The prime point of contact is Shellie Murphy of the Contracting Services Division, reachable via email at [email hidden]. Responses to the Sources Sought Notice must be submitted electronically by 2:00 PM Mountain Time on May 29, 2026, through completion of the attached Sources Sought Survey Questionnaire. Offerors are required to provide their Unique Entity ID (UEI) and self-certify size status and socioeconomic eligibility, including potential designations such as WOSB, SDVOSB, HUBZone, or other small business categories under the $45 million size standard for NAICS 237310. No formal proposals, drawings, or specifications are available at this stage, and the government is not obligated to award a contract based on this notice. The site is situated within 12 miles of suppliers and lodging, and while no packaging, marking, or inspection criteria are specified, all deliverables will be accepted at the project location. No Contracting Officer’s Representative or technical oversight personnel are named, and no accounting codes or invoicing methods are detailed; such administrative requirements will be defined in the forthcoming RFP. All submissions must be directed exclusively via email to the