Washington Dams

817 dams tracked by the National Inventory of Dams

Total Dams

817

High Hazard

404

49.4%

Poor / Unsatisfactory

65

Average Age

55 yrs

Hazard Classification

High404 (49.4%)
Significant98 (12.0%)
Low312 (38.2%)

Condition Assessment

Satisfactory241 (29.5%)
Fair191 (23.4%)
Poor / Unsatisfactory65 (8.0%)
Not Rated320 (39.2%)

Federal

69

State

42

Local

193

Private

392

Tallest Dams

High Hazard Dams

All Dams in Washington

Showing 125 of 191

Dam NameHeight (ft)YearHazardCondition
204th Street Stormwater Detention Basin

King County

92001SignificantFair
Antilon Lake Dam

Chelan County

621913HighFair
Badger Mountain Irr Dist Reservoir Expan

Benton County

141977HighFair
Barlond Dairy Lagoon

Snohomish County

111990SignificantFair
Berger Dam

Thurston County

111970HighFair
Boman Reservoir Dam

Ferry County

231977HighFair
Bosma Old Pond 1

Yakima County

92000SignificantFair
Boundary

Pend Oreille County

3601967HighFair
Boyd Lower Reservoir Dam

San Juan County

241960HighFair
Buck Mountain Reservoir Dam No 1

San Juan County

171985HighFair
Buck Mountain Reservoir Dam No 2

San Juan County

321985HighFair
Buck Mountain Reservoir Dam No 3

San Juan County

201985HighFair
Bueler Dairy Waste Storage Pond

Snohomish County

152000SignificantFair
Camano Island Cattle CO Dam

Adams County

172004HighFair
Camping Dairy Lagoon Dam

Whatcom County

71980HighFair
Cardinal Crest Reservoir Dam

Franklin County

141990HighFair
Casad Dam

Kitsap County

1901956HighFair
Cedar Heights Dam

Skagit County

152007HighFair
Cedar Hills Landfill Csw Pond

King County

142016SignificantFair
Cedar Way Stormwater Detention Dam

Snohomish County

311985HighFair
Centralia Coal Mine Dam No 32b

Thurston County

271991LowFair
Centralia Coal Mine Dam No 3b

Lewis County

1401980SignificantFair
Centralia Coal Mine Pond 46 Dam

Lewis County

302004HighFair
Chelan

Chelan County

661927SignificantFair
Chiawana Frenchman Hills Dam

Grant County

241995HighFair
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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.