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Oroville Dam is an earthfill embankment dam on the Feather River east of the city of Oroville, California, in the Sierra Nevada foothills east of the Sacramento Valley. At 770 feet (235 m) high, it is the tallest dam in the U.S. [ 8 ] and serves mainly for water supply, hydroelectricity generation, and flood control.
Most of the U.S.'s taller dams are located in the west because of the steeper and more rugged topography. The tallest is Oroville Dam in northern California, a 770.5-foot (234.8 m) embankment dam completed in 1968. Five of the ten tallest dams in the U.S. are located in California.
The Oroville dam footage shows the spillway flowing at 15,000 cubic feet per second.
Reservoir levels at Oroville stand at about 840 feet — 60 feet shy of the maximum. Skip to main content. Sign in. Mail. 24/7 Help. For premium support please call: 800-290-4726 more ways ...
The Oroville–Thermalito Complex is a group of reservoirs, structures, and facilities located in and around the city of Oroville in Butte County, California.The complex serves not only as a regional water conveyance and storage system, but is the headwaters for, and therefore perhaps is the most vital part of, the California Department of Water Resources' State Water Project, as one of the ...
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The Oroville Dam main spillway on August 5, 2018, during phase 2 repairs. The main spillway was successfully reconstructed by November 1, 2018. [46] According to its 2017–18 operations plan, the DWR maintained Lake Oroville at a lower than normal level to reduce the possibility that the spillway would have to be used the following winter. [44]
The historical average level for that day — March 14 — was 71% over the last 30 years. Nearly 100 miles south of Lake Oroville, Folsom Lake was exceptionally dry in November.