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 551575 of 821

Dam NameHeight (ft)YearHazardCondition
Glen Anne Dam

Santa Barbara County

1351953HighNot Available
Giles

Solano County

181965HighPoor
Giffen Reservoir

Fresno County

291971HighSatisfactory
Gibraltar

Santa Barbara County

1691920HighSatisfactory
Gene Wash

San Bernardino County

1401937HighSatisfactory
Gem Lake

Mono County

801917HighPoor
Gasburg Creek Dike

Tuolumne County

751971HighSatisfactory
Garvey Reservoir

Los Angeles County

1601954HighSatisfactory
Fullerton Dam

Orange County

461941HighNot Available
Friant Millerton Road Embankment A

Fresno County

131942HighNot Available
Freshwater/Runoff Pond

Sacramento County

20HighNot Available
Fresh Water Pond

Kern County

18HighNot Available
Fresh Water Impoundment

Kern County

15HighNot Available
Fresh Water

Los Angeles County

30HighNot Available
Fresh Water

Riverside County

17HighNot Available
Fresh Water

Los Angeles County

40HighNot Available
Frenchman

Plumas County

1391961HighSatisfactory
French Lake

Nevada County

951859HighSatisfactory
Fountaingrove

Sonoma County

381953HighSatisfactory
Foster

Riverside County

381945HighSatisfactory
Foss Valley

Napa County

561988HighSatisfactory
Foss Creek North Area

Sonoma County

201998HighSatisfactory
Forest Lake

Monterey County

651892HighSatisfactory
Foothill Regulating Park

Sonoma County

511963HighSatisfactory
Foothill Park

Santa Clara County

861988HighSatisfactory
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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.