Canyon Tunnel Project

The Canyon Tunnel Project, led by the South San Joaquin Irrigation District and supervised by the California Department of Water Resources, involves performing minor alterations to Goodwin Dam, State Dam No. 62. The primary scope of work consists of constructing a new inlet structure adjacent to the dam to facilitate a new water conveyance tunnel. This project is categorized under NAICS code 237990 and is located within the state of California. A Notice of Determination was filed on June 18, 2025, by the Department of Water Resources Division of Safety of Dams, certifying that the project complies with the California Environmental Quality Act. This certification confirms that the necessary environmental impact reports or negative declarations were prepared and that all required mitigation measures and monitoring plans have been adopted. Project coordination is managed by Forrest Killingsworth of the Engineering Department and Nekane Hollister, the Project Engineer.