Earthwork and Excavation

The contract calls for comprehensive earthwork and excavation services within Napa County’s right-of-way, specifically involving structure excavation, backfill operations, and associated soil handling with strict adherence to Caltrans and Napa County specifications. All compaction must achieve a minimum of 92% Proctor density to ensure engineered soil stability and long-term performance, with work conducted in compliance with local and state regulations governing public infrastructure projects. The scope encompasses the full lifecycle of geotechnical activities from initial digging and material removal to careful placement and compaction of backfill materials. This is a subcontract opportunity posted on May 7, 2026, with a firm response deadline of June 2, 2026, at 6:30 PM. The North American Industry Classification System code 237990 identifies it under Other Heavy and Civil Engineering Construction, indicating its alignment with public works infrastructure development under the administration of California’s Public Works agency. While specific location details are not provided, performance is limited to designated areas within Napa County, and subcontractors must be prepared to meet all technical, logistical, and regulatory requirements for work conducted in publicly owned corridors. The project is accessible through the Napa County OpenGov procurement portal for further details and submission requirements.