Grove Basin Outlet Storm Drain Improvement Project

The Grove Basin Outlet Storm Drain Improvement Project, managed by the San Bernardino County Flood Control District, involves significant infrastructure upgrades to storm drain systems in Ontario, California. The scope of work includes the installation of new 84-inch and 96-inch reinforced concrete pipes from Edison Avenue to Chino Avenue, as well as replacing an existing 66-inch reinforced concrete pipe with a 72-inch pipe from Chino Avenue to the area just south of the Grove Basin. The project encompasses a total pipeline length of 6,583 feet with a disturbance area width of 14 feet. Additionally, the project requires the removal of existing outlet structures, the replacement of existing structures, and the reconstruction of affected roadways and driveways. Administrative oversight is provided by the SBC Flood Control District, with Ayida Smith serving as the primary point of contact. The project has undergone environmental review and received a Notice of Determination certifying compliance with the California Environmental Quality Act, concluding that the project will not have a significant environmental effect and requires no mitigation measures or monitoring plans. The project is identified by State Clearinghouse Number 202506512 and falls under NAICS code 237990.