Elderberry Forebay Dam

Elderberry Forebay Dam is a dam located in the Sierra Pelona Mountains of northwestern Los Angeles County, California. The dam partitions Elderberry Forebay from Castaic Lake. It forms the headwater reservoir for Castaic Power Plant, a pumped-storage hydroelectricity generation facility.^[1][3] The dam was completed in 1974 as part of the California State Water Project.

Elderberry Forebay Dam
Location	Los Angeles County, California
Coordinates	34°33′43″N 118°37′51″W
Opening date	1974; 51 years ago (1974)
Dam and spillways
Type of dam	Earthfill[1]
Impounds	Castaic Creek
Height	179 ft (55 m)[1]
Length	1,935 ft (590 m)[1]
Elevation at crest	1,550 ft (470 m)[1]
Width (base)	25 ft (7.6 m)[1]
Dam volume	5,896,950 cu yd (4,508,540 m3)[1]
Reservoir
Creates	Elderberry Forebay
Total capacity	28,400 acre⋅ft (35,000 dam3)[1]
Catchment area	81.6 sq mi (211 km2)[1]
Surface area	450 acres (180 ha)[1]
Normal elevation	1,519 ft (463 m)[2]

See also

• California State Water Project