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 676700 of 1,436

Dam NameHeight (ft)YearHazardCondition
Los Padres

Monterey County

1481949HighSatisfactory
Los Banos Creek Detention Dam

Merced County

1671965HighNot Available
Los Angeles Reservoir

Los Angeles County

1301977HighSatisfactory
Lopez Dam

Los Angeles County

501954HighNot Available
Lopez

San Luis Obispo County

1661969HighSatisfactory
Loon Lake Main

El Dorado County

1081963SignificantSatisfactory
Lookout

Modoc County

111930LowSatisfactory
Long Valley West No. 2

Napa County

351982LowSatisfactory
Long Valley

Mono County

1261941HighSatisfactory
Longley

Inyo County

271910LowSatisfactory
Long Lake

Plumas County

121938SignificantSatisfactory
Loma Rica Airport

Nevada County

411965HighSatisfactory
Lolonis Vineyards

Mendocino County

671999HighSatisfactory
Log Cabin

Yuba County

541969HighSatisfactory
Lobdel Lake

Mono County

271948LowSatisfactory
L. L. Anderson

Placer County

2311965HighSatisfactory
Live Oak Reservoir

Los Angeles County

1051975HighSatisfactory
Live Oak

Los Angeles County

761922HighSatisfactory
Littlerock

Los Angeles County

1241924HighSatisfactory
Little Panoche Detention

Fresno County

1511966HighNot Available
Little Mountain

San Bernardino County

281958HighSatisfactory
Little Juniper

Modoc County

221926SignificantSatisfactory
Little Grass Valley

Plumas County

2101961HighSatisfactory
Little Dalton Debris Basin

Los Angeles County

711960HighSatisfactory
Lindero

Los Angeles County

191966LowSatisfactory
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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.