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 476500 of 821

Dam NameHeight (ft)YearHazardCondition
Mcvicker Canyon Debris Basin

Riverside County

55HighFair
Meadow Lane

Sonoma County

301979HighSatisfactory
Melrose Avenue

San Diego County

571998HighSatisfactory
Mem

Tehama County

411976HighSatisfactory
Mendiboure

Lassen County

301949HighSatisfactory
Mendocino 3 Upper

Mendocino County

491915HighSatisfactory
Mendocino Middle

Mendocino County

391908HighFair
Merced Falls

Merced County

431901HighFair
Merlo

Sonoma County

741982HighSatisfactory
Metcalf

Napa County

341974HighSatisfactory
Metz Road Detention Basin

Riverside County

121981HighSatisfactory
Middlefield Reservoir

Alameda County

1471958HighSatisfactory
Middle Fork Brush Creek

Sonoma County

371961HighSatisfactory
Mill Creek

Santa Cruz County

761889HighFair
Milliken

Napa County

1101924HighSatisfactory
Mills

Sacramento County

231952HighSatisfactory
Mineral Hot Springs Lake

San Bernardino County

541967HighSatisfactory
Miner'S Ranch

Butte County

901962HighSatisfactory
Miramar

San Diego County

1651960HighSatisfactory
Misselbeck

Shasta County

961920HighPoor
Moccasin Lower

Tuolumne County

601930HighFair
Mockingbird Canyon

Riverside County

741914HighSatisfactory
Modesto Reservoir

Stanislaus County

361911HighSatisfactory
Mojave River Dam

San Bernardino County

2001971HighNot Available
Monticello Dam

Napa County

3041957HighNot Available
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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.