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 125 of 1,436

Dam NameHeight (ft)YearHazardCondition
Yucaipa No. 3

San Bernardino County

351978LowSatisfactory
Yucaipa No. 2

San Bernardino County

491978HighSatisfactory
Yucaipa No. 1

San Bernardino County

421978HighSatisfactory
York Hill

Colusa County

381952LowSatisfactory
Yorba

Orange County

451907HighSatisfactory
Yarnell Debris Basin

Los Angeles County

421963LowSatisfactory
Wuest

San Diego County

501928LowSatisfactory
Wrigley Reservoir

Los Angeles County

421930SignificantSatisfactory
Woodward

Stanislaus County

581918HighFair
Wood Ranch

Ventura County

1461965HighSatisfactory
Woodcrest

Riverside County

441954HighSatisfactory
Wishon Main

Fresno County

2601958HighSatisfactory
Wishon Forebay

Madera County

151896LowSatisfactory
Wise Forebay

Placer County

201913HighSatisfactory
Winery Lake

Napa County

291953HighSatisfactory
Winchester

Placer County

391999SignificantSatisfactory
Wilson Debris Basin

Los Angeles County

501961HighSatisfactory
Willow Lake #1

Napa County

402004HighSatisfactory
Willow Hill Reservoir

Sacramento County

24HighFair
Williams Valley

Mendocino County

471965LowSatisfactory
Williamson No. 1

El Dorado County

421926SignificantPoor
Williams

Santa Clara County

691895LowSatisfactory
Wildhorse

Modoc County

121934LowNot Rated
Wide Canyon

Riverside County

841968HighSatisfactory
Whittier Reservoir No. 4

Los Angeles County

551931LowSatisfactory
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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.