Grading, Excavation, and Earthwork

The contract focuses on grading and excavation work aimed at restoring the natural flow of a creek, enhancing its flood capacity to handle 1,130 cubic feet per second, and installing drainage swales to manage stormwater effectively. This earthwork project is designed to improve hydrologic function and reduce flood risk in the Richmond area, with performance centered at zip code 94801. The scope emphasizes environmental restoration through land shaping and controlled water movement, aligning with infrastructure needs that prioritize natural drainage systems over engineered solutions. This is a subcontract under NAICS code 237310 for water and waste treatment construction, issued by Contra Costa County in California. The solicitation was posted on July 22, 2026, though no solicitation number or set-aside details are provided. Work is geographically confined to Richmond, with no additional administrative or contact information specified beyond the project’s location and online reference. The effort supports long-term watershed resilience by reestablishing natural creek dynamics and integrating sustainable drainage infrastructure.