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 251–275 of 312
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Columbia Marsh Unit #1 Dam Grant County | 25 | 1958 | Low | Poor |
| Colchuck Lake Saddle Dam Chelan County | 9 | 1930 | Low | Not Rated |
| Coffin Sheep Dam No 3 Benton County | 31 | 1938 | Low | Not Rated |
| Christine Lake Dam Mason County | 18 | 1967 | Low | Not Rated |
| Chinook Water District Dam Pacific County | 26 | 1991 | Low | Not Rated |
| Chapman Lake Dam Spokane County | 18 | 1940 | Low | Not Rated |
| Chambers Lake Pierce County | 7 | 1967 | Low | Not Available |
| Chambers Creek Reservoir Dam Pierce County | 22 | 1970 | Low | Not Rated |
| Centralia Power Plant Surge Pond Dam Lewis County | 13 | 1971 | Low | Not Rated |
| Centralia Coal Mine Dam No 6b Lewis County | 13 | 1970 | Low | Not Rated |
| Centralia Coal Mine Dam No 5c Lewis County | 20 | 1970 | Low | Not Rated |
| Centralia Coal Mine Dam No 5 Lewis County | 14 | 1971 | Low | Not Rated |
| Centralia Coal Mine Dam No 44 Lewis County | 19 | 1975 | Low | Not Rated |
| Centralia Coal Mine Dam No 3d Lewis County | 285 | 1988 | Low | Not Rated |
| Centralia Coal Mine Dam No 3a Lewis County | 18 | 1970 | Low | Not Rated |
| Centralia Coal Mine Dam No 36a Lewis County | 14 | 1989 | Low | Not Rated |
| Centralia Coal Mine Dam No 36 Lewis County | 13 | 1989 | Low | Not Rated |
| Centralia Coal Mine Dam No 32b Thurston County | 27 | 1991 | Low | Fair |
| Centralia Coal Mine Dam No 20c Thurston County | 10 | 1981 | Low | Not Rated |
| Centralia Coal Mine Dam No 19a Lewis County | 13 | 1977 | Low | Not Rated |
| Centralia Coal Mine Dam No 19 Lewis County | 13 | 1977 | Low | Not Rated |
| Carnation Waste Pond No 7 Grant County | 16 | 1979 | Low | Not Rated |
| Carnation Potato Waste Lagoon System Adams County | 33 | 1990 | Low | Not Rated |
| Carl Malone Wildlife Pond Douglas County | 9 | 1992 | Low | Not Rated |
| Campbell Lake Dam Okanogan County | 10 | 1948 | Low | Not Rated |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.