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 10511075 of 1,436

Dam NameHeight (ft)YearHazardCondition
Ralston Afterbay

Placer County

891966HighFair
Ramona

San Diego County

2281988HighSatisfactory
Rancho Cielito

San Bernardino County

91912HighSatisfactory
Rancho Del Ciervo

Santa Barbara County

651938HighSatisfactory
Rancho Rubini

Colusa County

311955HighPoor
Rancho Seco

Sacramento County

581972HighSatisfactory
Rattlesnake Canyon

Orange County

791959HighFair
Ray Soule Reservoir

Siskiyou County

281953SignificantSatisfactory
Reba

Alpine County

701965HighSatisfactory
Reclaimed Water Reservoir

Shasta County

371995LowSatisfactory
Rector Creek

Napa County

1641946HighSatisfactory
Redbank

Fresno County

331962HighSatisfactory
Redbank Creek Detention Basin

Fresno County

171990HighSatisfactory
Red Bluff Diversion Dike 2

Tehama County

151963LowNot Available
Redhawk Lake

Calaveras County

331882HighSatisfactory
Red Lake

Alpine County

351924HighSatisfactory
Red Mountain Reservoir

San Diego County

1201985HighSatisfactory
Red Rock No. 1

Lassen County

631893HighSatisfactory
Redwood Landfill Leachate Impoundment

Marin County

101991SignificantFair
Reid

Calaveras County

321969LowSatisfactory
Relief

Tuolumne County

1401909HighPoor
Renner Sibley Creek

Modoc County

281959LowSatisfactory
Reservoir A

Placer County

931973HighSatisfactory
Reservoir C

Modoc County

201911SignificantNot Rated
Reservoir M

Modoc County

131977LowNot Rated
PreviousPage 43 of 58Next

Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.