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 455

Dam NameHeight (ft)YearHazardCondition
Yucaipa No. 3

San Bernardino County

351978LowSatisfactory
York Hill

Colusa County

381952LowSatisfactory
Yarnell Debris Basin

Los Angeles County

421963LowSatisfactory
Wuest

San Diego County

501928LowSatisfactory
Wishon Forebay

Madera County

151896LowSatisfactory
Williams Valley

Mendocino County

471965LowSatisfactory
Williams

Santa Clara County

691895LowSatisfactory
Wildhorse

Modoc County

121934LowNot Rated
Whittier Reservoir No. 4

Los Angeles County

551931LowSatisfactory
White Rock Lake

Nevada County

141855LowSatisfactory
White Pines

Calaveras County

351970LowSatisfactory
White

Modoc County

161918LowPoor
Whispering Oaks

Mariposa County

311968LowSatisfactory
Wet Meadows

Alpine County

28LowSatisfactory
West Side Detention Dike 2

Riverside County

371968LowNot Available
Weaver Lake Dam

Nevada County

271967LowNot Rated
Wastewater Storage

Placer County

751978LowSatisfactory
Ward Lake

Lassen County

231889LowSatisfactory
Walker Lake

Mono County

12LowSatisfactory
Walker Creek

Marin County

251976LowSatisfactory
Vicini

Amador County

191980LowSatisfactory
Upper Twin Lake

Napa County

191987LowSatisfactory
Upper Sunset Lake

Alpine County

221904LowSatisfactory
Upper Stone Canyon

Los Angeles County

1111954LowSatisfactory
Upper Settling Basin

Santa Clara County

58LowFair
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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.