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
- Grand Coulee Dam550 ft
- Ross540 ft
- Mud Mountain Dam425 ft
- Swift No. 1412 ft
- Diablo389 ft
High Hazard Dams
- Grand Coulee DamHigh
- RossHigh
- Mud Mountain DamHigh
- Swift No. 1High
- DiabloHigh
Poor Condition Dams
- Lower BakerPoor
- WellsPoor
- Van Stone Tailings DamPoor
- Indian Creek DamPoor
- Butterworth DamPoor
All Dams in Washington
Showing 676–700 of 817
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Columbia Marsh Unit #2 Dam Grant County | 15 | 1957 | Low | Fair |
| Columbia Marsh Unit #1 Pond No. 3 Dam Grant County | 13 | 1958 | Low | Poor |
| Columbia Marsh Unit #1 Dam Grant County | 25 | 1958 | Low | Poor |
| College Hill Reservoir Grays Harbor County | 31 | 1899 | High | Poor |
| Coldwater Debris Dam Cowlitz County | 200 | 1981 | Undetermined | Not Rated |
| Colchuck Lake Saddle Dam Chelan County | 9 | 1930 | Low | Not Rated |
| Colchuck Lake Dam Chelan County | 18 | 1930 | High | Poor |
| Coffin Sheep Dam No 3 Benton County | 31 | 1938 | Low | Not Rated |
| Cle Elum Dam Kittitas County | 165 | 1933 | High | Not Available |
| Clear Lake Saddle Dam Chelan County | 8 | 1888 | High | Satisfactory |
| Clear Lake Dam Chelan County | 13 | 1888 | High | Satisfactory |
| Clear Creek Dam Yakima County | 84 | 1914 | High | Not Available |
| Christine Lake Dam Mason County | 18 | 1967 | Low | Not Rated |
| Chinook Water District Dam Pacific County | 26 | 1991 | Low | Not Rated |
| Chief Joseph Dam Douglas County | 230 | 1955 | High | Not Available |
| Chiawana Rd O Sw Pond Grant County | 16 | 2019 | High | Not Rated |
| Chiawana Gleed Ranch Dam Yakima County | 21 | 2003 | High | Fair |
| Chiawana Frenchman Hills Dam Grant County | 24 | 1995 | High | Fair |
| Chelan Chelan County | 66 | 1927 | Significant | Fair |
| Chehalis Regional Water Reclamation Pond Lewis County | 17 | 2005 | Significant | Satisfactory |
| Chase Lake Stormwater Detention Dam Snohomish County | 10 | 1990 | High | Not Rated |
| Chapman Lake Dam Spokane County | 18 | 1940 | Low | Not Rated |
| Chaplain Lake South Dam Snohomish County | 75 | 1930 | High | Satisfactory |
| Chaplain Lake North Dam Snohomish County | 35 | 1940 | High | Satisfactory |
| Chambers Lake Pierce County | 7 | 1967 | Low | Not Available |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.