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 10761093 of 1,093

Dam NameHeight (ft)YearHazardCondition
Williams Valley

Mendocino County

471965LowSatisfactory
Willow Lake #1

Napa County

402004HighSatisfactory
Wilson Debris Basin

Los Angeles County

501961HighSatisfactory
Winchester

Placer County

391999SignificantSatisfactory
Winery Lake

Napa County

291953HighSatisfactory
Wise Forebay

Placer County

201913HighSatisfactory
Wishon Forebay

Madera County

151896LowSatisfactory
Wishon Main

Fresno County

2601958HighSatisfactory
Woodcrest

Riverside County

441954HighSatisfactory
Wood Ranch

Ventura County

1461965HighSatisfactory
Wrigley Reservoir

Los Angeles County

421930SignificantSatisfactory
Wuest

San Diego County

501928LowSatisfactory
Yarnell Debris Basin

Los Angeles County

421963LowSatisfactory
Yorba

Orange County

451907HighSatisfactory
York Hill

Colusa County

381952LowSatisfactory
Yucaipa No. 1

San Bernardino County

421978HighSatisfactory
Yucaipa No. 2

San Bernardino County

491978HighSatisfactory
Yucaipa No. 3

San Bernardino County

351978LowSatisfactory
PreviousPage 44 of 44

Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.