Willow Hill Dam Valve Replacement Project

The Willow Hill Dam Valve Replacement Project, managed by the City of Folsom, involves the rehabilitation and replacement of upstream and downstream valves at the Willow Hill Reservoir dam that have reached the end of their serviceable life. The scope of work includes replacing the upstream slide gate valve structure and the downstream isolation valve, installing a raised landing and gate operator infrastructure at the top of the dam, and placing rip rap and armoring on a portion of the upstream face of the dam. The project is located at 321 Barnhill Drive in Folsom, Sacramento County, California. The City of Folsom has determined that the project will not have a significant environmental effect, as documented in a Negative Declaration under the California Environmental Quality Act. Consequently, no mitigation measures or monitoring plans were adopted. Administrative contact for the project is Emma Atkinson, Management Analyst for the City of Folsom. The project is classified under NAICS code 237990 and was posted as a forecast on August 27, 2025.