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 351375 of 1,436

Dam NameHeight (ft)YearHazardCondition
Dunsmuir Reservoir

Alameda County

431968HighSatisfactory
Dutcher Creek

Sonoma County

431992HighSatisfactory
Dutch Flat Afterbay

Nevada County

1651965LowSatisfactory
Dutch Flat Forebay

Nevada County

1051966LowSatisfactory
Duvall

Napa County

301940HighSatisfactory
Dwight Hammond

Siskiyou County

251959LowSatisfactory
Dyer

Alameda County

302011HighFair
Eagle Canyon Canal Diversion

Tehama County

111910LowSatisfactory
Eagle Canyon Debris Basin

Riverside County

602015HighSatisfactory
Eagle Ranch

San Luis Obispo County

551974HighSatisfactory
Eagle Rock

Los Angeles County

1131953HighSatisfactory
Early Intake

Tuolumne County

561925LowFair
East Boulder Lake

Siskiyou County

71937LowNot Rated
Eastfoot Retarding Basin

Orange County

392007HighSatisfactory
East Glorietta

Los Angeles County

221932HighSatisfactory
East Hicks Canyon Retarding Basin

Orange County

491997LowSatisfactory
Eastlake

San Diego County

351986HighSatisfactory
East Park Dam

Colusa County

1391910HighNot Available
Eaton H. Magoon Lake

Napa County

321965HighSatisfactory
Eaton Wash Debris Basin

Los Angeles County

631936HighSatisfactory
E. A. Wright

Glenn County

381950SignificantSatisfactory
Echo Lake

El Dorado County

141992HighSatisfactory
Ed R. Levin

Santa Clara County

381968HighSatisfactory
Edwards Reservoir

Santa Barbara County

1201985HighSatisfactory
El Capitan

San Diego County

2371934HighPoor
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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.