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Monticello Dam

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Monticello Dam and Lake Berryessa

Monticello Dam is located on Putah Creek where the stream crosses the eastern boundary of Napa County.  It regulates flows along the lower reaches of Putah Creek and stores surplus water. The dam is a concrete, medium-thick arch structure with a height of 304 feet above the foundation and a crest length of 1,023 feet.

Monticello Dam Powerplant was built in 1983.  It is at the base of the Monticello Dam, and has 3 generators. The was built under a FERC license and is owned, operated and maintained by Solano Irrigation District.

Lake Berryessa has a storage capacity of 1,602,000 acre-feet. 

Lake Berryessa Website

Last updated: May 26, 2010