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 10511075 of 1,093

Dam NameHeight (ft)YearHazardCondition
Auburn Valley Country Club #3

Placer County

391959LowSatisfactory
Auburn Lake Trails

El Dorado County

411978SignificantSatisfactory
Atascadero Park

San Luis Obispo County

181918HighSatisfactory
Asti

Sonoma County

341955LowSatisfactory
Arundell Barranca

Ventura County

571996HighSatisfactory
Arroyo Seco

Amador County

671957HighSatisfactory
Argyle No. 2

Contra Costa County

271970HighSatisfactory
Antioch Reservoir

Contra Costa County

301935HighSatisfactory
Anthony House

Nevada County

751970HighSatisfactory
Antelope

Kern County

571987HighSatisfactory
Antelope

Plumas County

1131964HighSatisfactory
Angwin

Napa County

351967HighSatisfactory
Andrew Cademartori

Calaveras County

801983HighSatisfactory
Anderson Ranch

Nevada County

471989LowSatisfactory
Anderson Cottonwood

Shasta County

241917LowSatisfactory
Amethyst Basin

San Bernardino County

452019HighSatisfactory
Amargosa Creek

Los Angeles County

651998HighSatisfactory
Alta Loma Basin #2

San Bernardino County

221971HighSatisfactory
Alta Loma Basin #1

San Bernardino County

301964HighSatisfactory
Alpine Main

Alpine County

811891HighSatisfactory
Alpine

Marin County

1431917HighSatisfactory
Almond

Alameda County

301954HighSatisfactory
Almaden Valley

Santa Clara County

381965HighSatisfactory
Alluvial Drain Detention

Fresno County

121994HighSatisfactory
Allen

Lake County

331955HighSatisfactory
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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.