Santiago Dam

Santiago Dam
Santiago Dam, viewed from the eastern end of the lake
Santiago Dam is located in California
Santiago Dam
Location of Santiago Dam in California
CountryUnited States
LocationOrange County, California
Coordinates33°47′10″N 117°43′31″W / 33.78611°N 117.72528°W / 33.78611; -117.72528
Construction began1929[1]
(Irvine Company, Serrano Irrigation District)
Opening date1931; 93 years ago (1931)
Owner(s)Serrano Water District/Irvine Ranch Water District
Dam and spillways
Type of damRoller-compacted earth and rock fill
ImpoundsSantiago Creek
Height136 ft (41 m)[2]
Length1,425 ft (434 m)[2]
Width (crest)29 ft (8.8 m)
Width (base)760 ft (230 m)
Dam volume790,000 cu yd (600,000 m3)[3]
Spillway typeUncontrolled concrete overflow
Spillway capacity31,700 cu ft/s (900 m3/s)[4]
Reservoir
CreatesIrvine Lake
Total capacity38,800 acre⋅ft (47,900,000 m3) (max)
25,000 acre⋅ft (31,000,000 m3) (conservation)
Catchment area64 sq mi (170 km2)
Surface area700 acres (280 ha)
Power Station
Hydraulic head120 ft (37 m)
Installed capacityNone

Santiago Dam (also known as Santiago Creek Dam) is an earth/rockfill dam across Santiago Creek in Orange County, in the U.S. state of California, forming Irvine Lake. The 136-foot (41 m) earth dam and its reservoir serve for flood control and recreational purposes. It lies upstream (southeast) from the city of Orange and north of Irvine. Irvine Lake is the largest body of fresh water entirely in Orange County.

  1. ^ "The Lake That Wants For You To Catch Fish". Western Outdoor News. Archived from the original on 2011-07-18. Retrieved 2010-11-13.
  2. ^ a b "Irvine Lake, Southern California". FindLakes. Retrieved 2010-11-13.
  3. ^ Rogers, J. David; et al. "Dams and Disasters: a brief overview of dam building triumphs and tragedies in California's past" (PDF). Missouri University of Science and Technology. Retrieved 2010-11-13.[permanent dead link]
  4. ^ Planning Level Hydrology Analysis for East Orange Area 2 & 3 and Golf Course (Report). City of Orange. 2005-05-02.