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 776800 of 1,436

Dam NameHeight (ft)YearHazardCondition
Lake Arthur

Placer County

441909HighSatisfactory
Lake Arrowhead

San Bernardino County

1901922SignificantPoor
Lake Angela

Shasta County

241958HighSatisfactory
Lake Angela

Nevada County

281924HighSatisfactory
Lake Alta

Placer County

221862HighFair
Lake Aloha Auxiliary No. 4

El Dorado County

91917LowSatisfactory
Lake Almanor

Plumas County

1351927HighFair
Lake Ada Rose

Mendocino County

501964HighSatisfactory
La Herradura

Napa County

731948LowSatisfactory
Lagunitas

Marin County

481872SignificantSatisfactory
Lagunita

Sonoma County

491954HighSatisfactory
Lagunita

Santa Clara County

161900HighSatisfactory
Laguna Regulating Basin

Los Angeles County

431970SignificantSatisfactory
La Grange

Stanislaus County

1311893SignificantSatisfactory
Lagoon Valley County Park

Solano County

131981LowSatisfactory
Lafranchi Creek

Sonoma County

231982SignificantSatisfactory
Lafayette

Contra Costa County

1321929HighFair
Lady Franklin Lake

Tulare County

211905LowSatisfactory
La Contenta

Calaveras County

432002HighSatisfactory
Kunkle

Butte County

541907SignificantSatisfactory
Kuhn

Santa Clara County

671947HighSatisfactory
Kramer

Lassen County

311937LowSatisfactory
Klau Dam (Blm)

San Luis Obispo County

451961LowNot Rated
Kinney Meadows

Alpine County

441929LowSatisfactory
King Ridge Road

Sonoma County

52LowFair
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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.