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 821

Dam NameHeight (ft)YearHazardCondition
Angwin

Napa County

351967HighSatisfactory
Annadel No. 1

Sonoma County

671956HighFair
Antelope

Kern County

571987HighSatisfactory
Antelope

Plumas County

1131964HighSatisfactory
Anthony House

Nevada County

751970HighSatisfactory
Antioch Reservoir

Contra Costa County

301935HighSatisfactory
Araujo Reservoir No. 1

Napa County

391950HighFair
Araujo Reservoir No. 2

Napa County

331950HighFair
Argyle No. 2

Contra Costa County

271970HighSatisfactory
Arroyo Seco

Amador County

671957HighSatisfactory
Arundell Barranca

Ventura County

571996HighSatisfactory
Atascadero Park

San Luis Obispo County

181918HighSatisfactory
Austrian

Santa Clara County

1851950HighSatisfactory
Axell

Sonoma County

431952HighSatisfactory
Azalea

Sonoma County

441955HighSatisfactory
Bailey Debris Basin

Los Angeles County

431954HighSatisfactory
Balch Afterbay

Fresno County

1651928HighSatisfactory
Balch Diversion

Fresno County

1351927HighSatisfactory
Balsam Meadow Forebay Main

Fresno County

1231986HighSatisfactory
Bap Pond 8

Kern County

291975HighSatisfactory
Barrett

San Diego County

1611922HighFair
Bar X Ranch Reservoir #2

Lake County

302003HighSatisfactory
Bascherini

Solano County

351962HighSatisfactory
Bear Dam

Mariposa County

921954HighNot Available
Beardsley

Tuolumne County

2841957HighFair
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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.