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 126150 of 821

Dam NameHeight (ft)YearHazardCondition
Skyrocket

Calaveras County

431999HighSatisfactory
Skinner Clearwell

Riverside County

441991HighSatisfactory
Sinaloa Lake

Ventura County

301925HighSatisfactory
Silver Lake

Plumas County

211906HighSatisfactory
Silver Lake

Amador County

321876HighPoor
Silver Lake

Los Angeles County

431976HighSatisfactory
Silt Pond

Los Angeles County

80HighNot Available
Silt Pond

Riverside County

25HighNot Available
Silt Pond

Ventura County

80HighNot Available
Sierra Madre Villa

Los Angeles County

501958HighSatisfactory
Sierra Madre

Los Angeles County

691928HighSatisfactory
Shiloh Ranch

Sonoma County

611991HighSatisfactory
Shelley

Siskiyou County

271952HighSatisfactory
Shaver Lake

Fresno County

1801927HighSatisfactory
Shasta River

Siskiyou County

961928HighSatisfactory
Shasta Dam

Shasta County

6021945HighNot Available
Seven Oaks

San Bernardino County

5501999HighSatisfactory
Sequoia Lake

Fresno County

511888HighSatisfactory
Sepulveda Dam

Los Angeles County

571941HighNot Available
Senior Canyon

Ventura County

761964HighSatisfactory
Senator Wash-Xanyō Xamshré Dike

Imperial County

951966HighNot Available
Seeger

Marin County

1151961HighSatisfactory
Searsville

San Mateo County

681890HighSatisfactory
Scout Lake

Mendocino County

631964HighSatisfactory
Scotts Flat Spillway

Nevada County

55HighSatisfactory
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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.