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 2650 of 455

Dam NameHeight (ft)YearHazardCondition
Upper Sardine Lake

Sierra County

23LowSatisfactory
Upper San Fernando

Los Angeles County

821921LowSatisfactory
Upper Rock Lake Main

Nevada County

171855LowSatisfactory
Upper Plaskett

Glenn County

281955LowNot Rated
Upper Pasture

Modoc County

15LowSatisfactory
Upper Otay

San Diego County

781901LowSatisfactory
Upper Monarch Lake

Tulare County

221905LowSatisfactory
Upper Lindsey

Nevada County

81870LowSatisfactory
Upper Kinney Lake

Alpine County

26LowSatisfactory
Upper Hollywood

Los Angeles County

871933LowSatisfactory
Upper Gorge

Mono County

441953LowSatisfactory
Upper Feeley

Nevada County

231870LowSatisfactory
Upper Elder

Shasta County

26LowSatisfactory
Upper Biscar Dam (Blm)

Lassen County

132006LowNot Rated
Upper 4s Ranch

San Diego County

281927LowSatisfactory
Union Main

Alpine County

361910LowSatisfactory
Twin Lake

Alpine County

221903LowSatisfactory
Tiger Creek Forebay

Amador County

33LowSatisfactory
Thurman

Shasta County

631966LowSatisfactory
Three Lakes

Plumas County

331928LowSatisfactory
Terminal Northeast Auxiliary Dam

Solano County

281959LowNot Available
Telephone Flat

Modoc County

71931LowNot Rated
Tejon Storage 2

Kern County

671956LowSatisfactory
Tejon Storage 1

Kern County

321946LowSatisfactory
Tamarac Lake

Alpine County

211905LowSatisfactory
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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.