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 276300 of 1,093

Dam NameHeight (ft)YearHazardCondition
Dry Creek

Contra Costa County

301963HighSatisfactory
Duncan

Modoc County

191919LowSatisfactory
Duncan Creek Diversion

Placer County

321965LowSatisfactory
Dunn Ranch

Riverside County

441987LowSatisfactory
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
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
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
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 Casco

Riverside County

191879LowSatisfactory
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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.