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 326350 of 821

Dam NameHeight (ft)YearHazardCondition
Indian Valley

Lake County

2251975HighFair
Iron Canyon

Shasta County

2141965HighSatisfactory
Irrigation Reservoir

Kern County

221980HighSatisfactory
Isabella Dam

Kern County

1851953HighNot Available
Jackson Creek

Amador County

1931965HighSatisfactory
Jackson Creek Spillway

Amador County

37HighSatisfactory
Jackson Lake

Nevada County

291943HighSatisfactory
Jackson Meadows

Nevada County

2051965HighSatisfactory
James H. Turner

Alameda County

1931964HighSatisfactory
James J. Lenihan

Santa Clara County

2081953HighFair
James Porter

Modoc County

211928HighSatisfactory
J.C. Jacobsen

Kern County

561973HighSatisfactory
Jeff Davis

Calaveras County

1141973HighSatisfactory
Jenks Lake - Dam

San Bernardino County

301875HighNot Rated
Johnson Ranch

Mendocino County

26HighFair
Juncal

Santa Barbara County

1601930HighSatisfactory
Jurupa Basin

San Bernardino County

292001HighSatisfactory
Jurupa Basin

Riverside County

221983HighSatisfactory
Kellogg Ballpark

Sonoma County

511962HighSatisfactory
Kelly Lake

Placer County

241928HighSatisfactory
Kern River County Park

Kern County

241959HighSatisfactory
Keswick Dam

Shasta County

1571950HighNot Available
Kidd Lake Main

Placer County

431850HighSatisfactory
Kimball Creek

Napa County

801939HighSatisfactory
Kuhn

Santa Clara County

671947HighSatisfactory
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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.