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 2650 of 1,093

Dam NameHeight (ft)YearHazardCondition
Weymouth Memorial Reservoir

Los Angeles County

181966HighSatisfactory
Wet Meadows

Alpine County

28LowSatisfactory
West Valley

Modoc County

651936HighSatisfactory
West Point Regulating

Calaveras County

361965HighSatisfactory
Westlake Reservoir

Los Angeles County

1581972HighSatisfactory
Weber

El Dorado County

921924HighSatisfactory
Wastewater Storage

Placer County

751978LowSatisfactory
Ward Lake

Lassen County

231889LowSatisfactory
Ward Creek

Alameda County

711963HighSatisfactory
Walnut Canyon

Orange County

1871968HighSatisfactory
Wallace

Calaveras County

29SignificantSatisfactory
Walker Lake

Mono County

12LowSatisfactory
Walker Creek

Marin County

251976LowSatisfactory
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
Veeh

Orange County

371936HighSatisfactory
Vasona Percolating

Santa Clara County

341935HighSatisfactory
Van Vleck

Sacramento County

261950SignificantSatisfactory
Uvas

Santa Clara County

1181957HighSatisfactory
Utica Main

Alpine County

591903HighSatisfactory
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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.