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 12011225 of 1,436

Dam NameHeight (ft)YearHazardCondition
Clear Lake Dike 1

Modoc County

131910HighNot Available
Clear Lake

Lake County

431914LowSatisfactory
Clarke

Modoc County

171939LowSatisfactory
Circle S

Napa County

281979HighSatisfactory
Christensen No. 1

Calaveras County

331951LowSatisfactory
Chorro Creek

San Luis Obispo County

771941HighSatisfactory
Chollas

San Diego County

501901HighSatisfactory
Chinquapin

Mendocino County

491971SignificantSatisfactory
Chino Ranch #1

San Bernardino County

221918SignificantSatisfactory
Chilkoot

Madera County

111890LowSatisfactory
Chili Bar

El Dorado County

1261964HighFair
Chicago Park Forebay

Nevada County

601966LowSatisfactory
Chevy Chase 1290 Reservoir

Los Angeles County

901940HighSatisfactory
Chet Harritt

San Diego County

2001962HighSatisfactory
Chester Diversion

Plumas County

471975HighSatisfactory
Chesbro

Sacramento County

791972HighSatisfactory
Cherry Valley

Tuolumne County

3151956HighFair
Cherry Flat

Santa Clara County

601936HighSatisfactory
Cherokee

Calaveras County

441959LowSatisfactory
Chatsworth

Los Angeles County

451918HighSatisfactory
Channel Diversion Dike

Los Angeles County

421940LowSatisfactory
Chace Valley

Lassen County

161955LowSatisfactory
Chabot

Alameda County

1421892HighSatisfactory
Century

Los Angeles County

441913SignificantPoor
Central

Alameda County

551910HighSatisfactory
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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.