Santa Clarita Valley History In Pictures
> CASTAIC DAM & RESERVOIR   > SCV WATER AGENCY
Castaic Dam Under Construction
California Department of Water Resources

[California Department of Water Resources] — Construction of the 425-foot tall Castaic Dam, located 45 miles from downtown Los Angeles in northern Los Angeles County, California. Construction of the State Water Project facility started in 1967 and was completed in April 1972. The dam and lake provide emergency storage if needed during a shutdown of the California Aqueduct and normal regulatory storage and recreation for Southern California.

wa1801a — An aerial view looks northeast toward the future location of the dam. Photo April 1967, DWR.

wa1801b — Construction of the concrete spillway. Photo January 5, 1968, DWR.

wa1801c — An aerial view of the construction site. Photo January 5, 1968, DWR.

wa1801d — Early construction phase of the dam. Photo January 25, 1968, DWR.

wa1801e — Early construction phase of the dam. Photo January 25, 1968, DWR.

wa1801f — Dam under construction. Photo November 25, 1970, DWR.

wa1801g — An aerial view of the spillway construction. Photo November 25, 1970, DWR.

wa1801h — Dam under construction. Photo November 25, 1970, DWR.

wa1801i — Dam under construction. Photo November 25, 1970, DWR.

wa1801j — Dam under construction. Photo November 25, 1970, DWR.


Residents of the Newhall-Saugus Area (Santa Clarita Valley) voted April 24, 1962, to connect to the State Water Project, necessitating the formation of the Upper Santa Clara Valley Water Agency to wholesale the water to the local water retailers. The entity was renamed Castaic Lake Water Agency in 1970 as plans were in the works to build a reservoir to hold the water in Castaic. Construction on the dam started in 1967 and was completed in April 1972; The Castaic Reservoir, colloquially known as Castaic Lake — not to be confused with the original, natural Castaic (aka Castac) Lake in Lebec — opened for recreational use on Saturday, June 3, 1972.

Several local ranches, including the Cordova Ranch, were buried under water as the Castaic Reservoir was filled. A UCLA dig shortly beforehand uncovered numerous Indian artifacts, a few of which are on display at the Santa Clarita Valley Historical Society's museum. Some were displayed at the Castaic Lake Visitors Center until it closed; the artifacts were moved to the visitors center at Pyramid Lake, another man-made SWP reservoir. The whereabouts of the vast majority of the artifacts is unknown; it is believed they ended up in a basement at Cal State Northridge or Cal State Fullerton. Among the artifacts were numerous mortars and pestles, arrowheads, at least one obsidian spear point (which would have come to the area via a trade route from the east), and a mysterious, perfectly round stone disc, about 8 inches in diameter.


WA1801: Download larger and original (extra-large) scans here. Online only.
CASTAIC DAM & RESERVOIR; CLWA
("Castaic Lake")

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History of Santa Clarita Water Co./Division

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Dissolution of Santa Clarita Water Co.
10-25-2017

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Construction Starts 1966

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Construction 1967-70 x10

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Towner Mfg. Constrution Report 1969

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Castaic Lake: 50-Year Operating Agreement 1969

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Aerial 12/5/1970

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Boat Launch 1972

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Dorn at Afterbay Opening 5/22/1972

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Dorn-Haddad 5/22/1972

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Main Lake Opens 6/26/1972

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CLWA Facility 1980

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"Dinocroc" 2004

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Huell Howser:
Groundwater Banking 2008

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Drought 2015

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Recycled Water Main Extension, Central Park, 12/13/2017


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Aqueduct Ruptures in AV, 1971

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