Retaining Wall Construction with Deep Pile Foundations

The contract mandates the design and construction of a reinforced concrete retaining wall supported by deep pile foundations to mitigate ongoing erosion of a coastal bluff located along Conzelman Road. The work requires engineering precision to ensure structural integrity against relentless marine forces, with the foundation system penetrating deep into stable substrate to anchor the wall securely and prevent future bluff collapse. All materials and construction methods must comply with geotechnical specifications tailored to the site’s sensitive coastal environment, emphasizing durability, long-term stability, and minimal ecological disruption. This subcontract opportunity, issued by the Department of the Interior through its Dsc Contracting Services Division, is open for bids with a submission deadline of May 29, 2026. The North American Industry Classification System code 238990 identifies the scope as other heavy and civil engineering construction, indicating a complex infrastructure project requiring specialized expertise in coastal stabilization. The place of performance is tied to the Conzelman Road location, though specific geographic details are not provided, and bidders must be prepared to mobilize equipment and workforce to the remote coastal site. No set-aside provisions or small business preferences are indicated, meaning the opportunity is open to all eligible contractors capable of meeting the technical and safety demands of the project.