California Dams

1,436 dams tracked by the National Inventory of Dams

Total Dams

1,436

High Hazard

821

57.2%

Poor / Unsatisfactory

66

Average Age

77 yrs

Hazard Classification

High821 (57.2%)
Significant160 (11.1%)
Low455 (31.7%)

Condition Assessment

Satisfactory1,093 (76.1%)
Fair106 (7.4%)
Poor / Unsatisfactory66 (4.6%)
Not Rated171 (11.9%)

Federal

163

State

50

Local

322

Private

617

Poor Condition Dams

All Dams in California

Showing 5175 of 1,436

Dam NameHeight (ft)YearHazardCondition
Vonsen

Marin County

351951HighSatisfactory
Volo Mining Company

El Dorado County

351958HighSatisfactory
Vista Del Mar Detention Basin

Contra Costa County

422011HighSatisfactory
Virginia Ranch

Yuba County

1721963HighSatisfactory
Vineyard Subdivision

Sonoma County

261962SignificantSatisfactory
Villa Park

Orange County

1181963HighSatisfactory
Vicini

Amador County

191980LowSatisfactory
Veterans Home

Napa County

471908HighFair
Vermilion Valley

Fresno County

1651954HighPoor
Veeh

Orange County

371936HighSatisfactory
Veeder Hills Dam

Napa County

42SignificantFair
Vassar Lake Dam

Yuba County

251962SignificantNot Available
Vasona Percolating

Santa Clara County

341935HighSatisfactory
Van Vleck

Sacramento County

261950SignificantSatisfactory
Vail

Riverside County

1521949HighFair
Uvas

Santa Clara County

1181957HighSatisfactory
Utica Main

Alpine County

591903HighSatisfactory
Usibelli No. 2

Napa County

261973HighSatisfactory
Upper Wilcox

Madera County

481930HighSatisfactory
Upper Twin Lake

Mono County

141905HighFair
Upper Twin Lake

Napa County

191987LowSatisfactory
Upper Sunset Lake

Alpine County

221904LowSatisfactory
Upper Stone Canyon

Los Angeles County

1111954LowSatisfactory
Upper Stehly

San Diego County

291999HighSatisfactory
Upper Settling Basin

Santa Clara County

58LowFair
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Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.