🚧 Temperance Flat Dam

Temperance Flat Dam is a proposed dam project on the San Joaquin River west of Auberry, California. Construction of the dam is on hold. The dam's main purpose would be to supplement storage capacity in the upper San Joaquin River basin. Under the current proposal, Temperance Flat would slightly more than double water storage on the San Joaquin River from below Friant Dam. The project is highly controversial because it would flood scenic canyons and historic sites along the San Joaquin River, and impact upstream hydroelectricity generation. The Bureau of Reclamation estimates the construction costs will be between US$2.5 billion and $2.6 billion, while other estimates range from $2.96 billion up to $3.35 billion. At 665 feet (203 m), Temperance Flat Dam would be the second highest dam in California, and the fifth tallest dam in the United States.