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 226–250 of 312
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Durhack Dam No 4 San Juan County | 21 | 1968 | Low | Not Rated |
| Durhack Dam No 3 San Juan County | 18 | 1968 | Low | Not Rated |
| Durhack Dam No 2 San Juan County | 10 | 1968 | Low | Not Rated |
| Durhack Dam No 1 San Juan County | 23 | 1968 | Low | Not Rated |
| Duncan Dam No 2 Pend Oreille County | 18 | 1966 | Low | Not Rated |
| Duncan Creek Dam Skamania County | 24 | 1963 | Low | Not Rated |
| Dragoon Lake Dam Spokane County | 18 | 1913 | Low | Not Rated |
| Dosser Reservoir Dam Spokane County | 14 | 1959 | Low | Not Rated |
| Dohman Creek Dam Pacific County | 41 | 1978 | Low | Not Rated |
| Dhondt Dam Stevens County | 18 | 1983 | Low | Not Rated |
| Devils Hole Dam Kitsap County | 22 | 1959 | Low | Poor |
| Deschutes Dam Thurston County | 45 | 1951 | Low | Not Rated |
| Davis Lake Dam Okanogan Co Okanogan County | 7 | 1974 | Low | Not Rated |
| Dagger Lake Dam Snohomish County | 10 | 1912 | Low | Not Rated |
| Cziglenski Beaver Pond Dam Stevens County | 8 | 1995 | Low | Not Rated |
| Crab Creek Flood Flat Water Control Structure Grant County | 11 | 2024 | Low | Not Rated |
| Coyote Lake Dam Adams County | 16 | 1976 | Low | Poor |
| Cow Lake Dam Adams County | 7 | 1935 | Low | Not Rated |
| Coweeman Gravel Pit No. 2 Dam Cowlitz County | 12 | 1962 | Low | Not Rated |
| Conger Lake Dam Pend Oreille County | 22 | 1926 | Low | Not Rated |
| Con Agra Foods New Storage Basin Franklin County | 13 | 2006 | Low | Not Rated |
| Con Agra Foods Main Storage Basin Dam Franklin County | 23 | 1970 | Low | Not Rated |
| Colville Wastewater Lagoons Stevens County | 7 | 1967 | Low | Not Rated |
| 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 |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.