Riprap Installation with Grout for Surface Stabilization

The contract entails the supply and installation of an eight-inch layer of riprap stone combined with grout to stabilize the ground surface directly beneath the bridge abutment, with the primary objective of preventing erosion and ensuring long-term structural integrity. The work will involve careful placement of durable, angular rock material layered to absorb and deflect water forces, followed by grout application to bind the stones and eliminate voids that could lead to scour or settlement. This activity is critical for maintaining the safety and functionality of the bridge infrastructure in the face of ongoing water flow and environmental exposure. The project is classified under NAICS code 237310, indicating it falls within the Highway, Street, and Bridge Construction sector, and is formally structured as a subcontract under the jurisdiction of the City of Pleasant Hill in California. Performance is localized to the area with ZIP code 94523, where the bridge abutment requiring stabilization is situated. The solicitation was posted on June 12, 2026, and the work is accessible through the state’s CEQA Net project portal, suggesting compliance with California environmental review requirements. No specific set-aside provisions or point of contact details are provided, but the engagement is governed by the city’s procurement processes for infrastructure maintenance and enhancement.