Foothill Regulating Park, located in Windsor, California, is a local government-owned water resource structure designed by the Natural Resources Conservation Service. Completed in 1963, this earth dam sits on Tr Windsor Creek and serves multiple purposes including irrigation, recreation, and water supply. With a dam height of 51 feet and a storage capacity of 109 acre-feet, Foothill Regulating Park plays a crucial role in managing the water resources in Sonoma County.

The park's primary purpose is water supply, and it is regulated by the California Department of Water Resources for dam safety. Despite its high hazard potential, the dam's condition assessment in 2017 deemed it satisfactory. Regular inspections are conducted, with the most recent one in July 2020. In case of emergencies, an Emergency Action Plan is in place and regularly updated to ensure public safety.

With its strategic location and essential role in water management, Foothill Regulating Park stands as a key infrastructure in safeguarding the water resources of Sonoma County. Its multiple uses, efficient design, and adherence to safety regulations make it a vital asset for the community, ensuring reliable water supply while offering recreational opportunities for residents and visitors alike.