Folsom Dam is a concrete gravity dam on the American River of Northern California in the United States, about 25 mi (40 km) northeast of Sacramento. The dam is 340 ft (100 m) high and 1,400 ft (430 m) long, flanked by earthen wing dams. It was completed in 1955, and officially opened the following year.
Located at the junction of the north and south forks of the American River, the dam was built by the United States Army Corps of Engineers, and was transferred to the United States Bureau of Reclamation upon its completion. The dam and its reservoir, Folsom Lake, are part of the Central Valley Project, a multipurpose project that provides flood control, hydroelectricity, irrigation, and municipal water supply. To increase Sacramento's flood protection to 200-year flood protection (meaning that the area is protected from a flood that has a 0.5% chance of occurring in any given year), the Corps of Engineers recently constructed an auxiliary spillway,[8] which was completed in October 2017; it enables Folsom Dam operators to increase outflows to prevent the lake level from reaching or exceeding the height of the main dam gates.[9]
Another Central Valley Project dam, Nimbus Dam, is located further down river.
^ ab"Folsom Dam General Information". Folsom and Sly Park Units Project. U.S. Bureau of Reclamation. 2009-06-04. Archived from the original on 2012-10-09. Retrieved 2012-08-25.
^ ab"Folsom Dam Dimensions". Folsom and Sly Park Units Project. U.S. Bureau of Reclamation. 2009-06-04. Retrieved 2012-08-25.
^ abCite error: The named reference NPDP was invoked but never defined (see the help page).
^Ritzema, Randall S.; Newlin, Brad D.; Van Lienden, Brian J. (October 2001). "Appendix H: Infrastructure" (PDF). CALVIN Project. University of California Davis. Archived from the original (PDF) on 2017-11-06. Retrieved 2014-01-25.
^"Folsom Dam Hydraulics & Hydrology". Folsom and Sly Park Units Project. U.S. Bureau of Reclamation. 2009-06-04. Archived from the original on 2012-10-09. Retrieved 2012-08-25.
^ abc"Folsom Powerplant". Folsom and Sly Park Units Project. U.S. Bureau of Reclamation. 2009-05-13. Archived from the original on 2012-09-25. Retrieved 2012-08-25.
^"California Hydroelectric Statistics & Data". California Energy Commission. Archived from the original on 2018-02-26. Retrieved 2018-04-26.
^"Sacramento District > Missions > Civil Works > Folsom Dam Auxiliary Spillway". www.spk.usace.army.mil. Retrieved 2016-02-29.
^Aragon, Greg. "Army Corps Completes $900 Million Folsom Dam Auxiliary Spillway Project". Retrieved 1 September 2018.
FolsomDam is a concrete gravity dam on the American River of Northern California in the United States, about 25 mi (40 km) northeast of Sacramento. The...
American River that was under construction at the time. The dam was replaced in 1955 by the FolsomDam. The facility includes five housing units within the secure...
Folsom Lake reservoir is formed by FolsomDam, built in 1955 to control and retain the American River. The dam and reservoir are part of the Folsom Project...
"Folsom Prison Blues" is a song by American singer-songwriter Johnny Cash. Written in 1953, it was first recorded and released as a single in 1955, and...
lower American River, between Folsom and Nimbus Dams in Sacramento County, California. The lake is located within the Folsom Lake State Recreation Area which...
of Folsom Lake. The extra storage would greatly reduce the flood risk to Sacramento. The dam was to be the principal feature of the Auburn-Folsom South...
Nimbus Dam is 7 miles (11 km) downstream from FolsomDam and helps to stabilize peaking power releases from FolsomDam, and divert water into the Folsom South...
Nevada, near Lake Tahoe, to its mouth at Folsom Lake northeast of Sacramento. Prior to the construction of FolsomDam the river was about 9 miles (14 km) longer...
(7,917 ha) park was established in 1956 after the creation of the FolsomDam. Folsom Lake is the ninth largest reservoir in California and a major recreational...
The Nimbus Dam is a base load hydroelectric dam on the American River near Folsom, California. Approximately 8,700 acre-feet (10,700 dam3) of water is...
Folsom High School is a public secondary school in the western United States, located in Folsom, California, a suburb east of Sacramento. Established...
in Northern California since 1983. The net downhill course starts at FolsomDam and ends at the State Capitol in Sacramento. The race is organized by...
until 1952 when the original Folsomdam across the American River was destroyed to make way for the new much larger FolsomDam. The powerhouse was shut down...
have criticized the outdated, overly conservative operation criteria at FolsomDam, citing improved weather forecasting and snowpack measurement technology...
The Folsom Unit consists of FolsomDam, its primary water storage component, and Nimbus Dam, which serves as its downstream forebay. The FolsomDam is...
tallest dams in the United States. The main list includes all U.S. dams over 300 feet (91 m) tall, and a second list gives the tallest dams in each state...
because of that year's greater precipitation. In 1995, a gate on the FolsomDam on the American River broke open, causing the river's flow to rise by...
opening resulted in a gate failure at FolsomDam in northern California. The Tainter gate is used in water control dams and locks worldwide. The Upper Mississippi...
Interior. 1981-01-19. Retrieved 2011-06-22. "USGS Gage #11446200 on Folsom Lake near Folsom, CA" (PDF). National Water Information System. U.S. Geological...
Pollock Pines and Coloma, before emptying into Folsom Lake, the reservoir formed by the FolsomDam. The North Fork American River also flows into the...
earthquake Ah Pah Dam (defunct) Auburn Dam (defunct) Centennial Dam Sites Reservoir Temperance Flat Dam California State Water Project List of dam removals in...
the largest of these is Lake Shasta, which formed behind Shasta Dam in the 1940s. The dam can impound 4.552 million acre⋅ft (1.483 trillion US gal; 5.615 trillion L)...
dam but instead claims rights to the water as it is shipped through the American River System and ends up at Folsom Lake near Sacramento. Folsomdam was...
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