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 426450 of 821

Dam NameHeight (ft)YearHazardCondition
Los Angeles Reservoir

Los Angeles County

1301977HighSatisfactory
Los Banos Creek Detention Dam

Merced County

1671965HighNot Available
Los Padres

Monterey County

1481949HighSatisfactory
Lost Creek

Butte County

1221924HighFair
Los Vaqueros

Contra Costa County

2311997HighSatisfactory
Lowe

Sonoma County

301959HighSatisfactory
Lower Bear

Amador County

2451952HighSatisfactory
Lower Bucks Lake

Plumas County

991928HighFair
Lower Crystal Springs

San Mateo County

1491888HighSatisfactory
Lower Franklin

Los Angeles County

1031922HighSatisfactory
Lower Peak Lake Main

Placer County

311860HighSatisfactory
Lower Peters Canyon Retarding Basin

Orange County

521990HighSatisfactory
Lower Pond / Pond 1

Sacramento County

40HighNot Available
Lower San Fernando

Los Angeles County

1251918HighSatisfactory
Lower Stehly

San Diego County

60HighSatisfactory
Lower Sunset Debris Basin

Los Angeles County

861963HighSatisfactory
Lower Twin Lake

Mono County

161888HighFair
Lundy Lake

Mono County

481911HighSatisfactory
Lynch Canyon

Solano County

21HighFair
Lyons

Tuolumne County

1321930HighSatisfactory
Lytton

Sonoma County

341956HighSatisfactory
Mabey Canyon

Riverside County

461974HighSatisfactory
Macumber

Shasta County

271907HighSatisfactory
Madera Lake

Madera County

311958HighSatisfactory
Maerkle

San Diego County

1651963HighSatisfactory
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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.