Bethany Forebay, also known as Bethany Reservoir, is a state-owned water storage facility located in Alameda, California. Built in 1961, this earth dam stands at a height of 95 feet and has a capacity of 5,000 acre-feet of water. Its primary purpose is water supply, serving irrigation, recreation, and other water-related needs in the region.

With a surface area of 163 acres and a drainage area of 4.46 square miles, Bethany Forebay plays a crucial role in water resource management in the area. Despite its high hazard potential, the dam is currently rated in fair condition, with regular inspections and maintenance conducted to ensure its safety and functionality. The state regulatory agency, DWR, Safety of Dams, oversees permitting, inspection, and enforcement to maintain the dam's integrity.

Bethany Forebay is a vital part of the water infrastructure in California, providing essential water supply for various purposes. Climate and water resource enthusiasts will appreciate the engineering and management efforts that go into maintaining this key reservoir to meet the region's water needs while ensuring safety and sustainability for the future.