Puddingstone Dam

Puddingstone Dam is a 147 ft (45 m) high earth and rockfill dam in the San Gabriel Valley, within San Dimas in eastern Los Angeles County, California.

Puddingstone Dam
Location of Puddingstone Dam in California
CountryUnited States
LocationSan Dimas,
Los Angeles County,
California
Coordinates34°05′25″N 117°48′33″W
Construction began1925
Opening date1928
Owner(s)Los Angeles County Department of Public Works
Dam and spillways
Type of damRock-fill
ImpoundsWalnut Creek
Height147 ft (45 m)
Length2,698 ft (822 m)
SpillwaysOverflow
Reservoir
CreatesPuddingstone Reservoir
Total capacity22,232 acre⋅ft (27,423,000 m3)
Active capacity16,342 acre⋅ft (20,158,000 m3)
Catchment area33.1 sq mi (86 km2)
Surface area490 acres (200 ha)
Power Station
Hydraulic head135 ft (41 m)

The dam was built in 1928 by the Los Angeles County Department of Public Works, which continues to operate it.

Geography

Puddingstone Dam serves mainly for flood control. It impounds Walnut Creek, a tributary of the San Gabriel River, to form Puddingstone Reservoir, which can hold more than 20,000 acre⋅ft (25,000,000 m3) of water.[1] The reservoir stores floodwater from both the Walnut Creek Wash, and also the San Dimas Wash, to which it is connected by a short artificial channel below San Dimas Dam.

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See also

References
  1. "Puddingstone". National Performance of Dams Program. Stanford University. Archived from the original on 2012-04-15. Retrieved 2011-11-24.
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