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 576–600 of 817
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Fargher Lake Dam Clark County | 7 | 1986 | Low | Not Rated |
| Fanchers Dam Okanogan County | 68 | 1926 | High | Fair |
| Fairview Reservoir No 2 Grays Harbor County | 25 | 1921 | High | Fair |
| Fairview Reservoir No 1 Grays Harbor County | 35 | 1915 | High | Poor |
| Fairfield Sewage Equalization Basin - Lagoon 2 Spokane County | 12 | 1966 | Significant | Fair |
| Fairfield Sewage Aerated Lagoon - Lagoon 1 Spokane County | 13 | 2003 | Significant | Fair |
| Failor Lake Dam Grays Harbor County | 32 | 1956 | Low | Not Rated |
| Everett Washwater Storage Pond Dam Snohomish County | 20 | 1985 | Low | Not Rated |
| Everett Reservoir No 4 Snohomish County | 24 | 1952 | High | Satisfactory |
| Everett Reservoir No 3 Snohomish County | 22 | 1923 | High | Satisfactory |
| Everett Clearwell Pond Dam Snohomish County | 31 | 1985 | Low | Not Rated |
| Evans Tieton Pond Dam Yakima County | 35 | 2004 | High | Satisfactory |
| Evans Konnowac Dam Yakima County | 33 | 1990 | High | Poor |
| Evans Flavorland Reservoir No 2 Yakima County | 40 | 1998 | High | Satisfactory |
| Evans Flavorland Reservoir No 1 Yakima County | 50 | 1985 | High | Satisfactory |
| Evans Far West Pond Dam Yakima County | 18 | 1997 | High | Poor |
| Evans Desert Aire Pond Grant County | 9 | 1990 | High | Satisfactory |
| Erickson Dam No 2 San Juan County | 14 | 1964 | Low | Not Rated |
| Erickson Dam No 1 San Juan County | 13 | 1964 | Low | Not Rated |
| Erickson Dam Clark County | 18 | 1968 | Significant | Poor |
| Enloe Dam Okanogan County | 63 | 1920 | Significant | Fair |
| Engelsma Dairy Lagoon Dam Whatcom County | 7 | 1994 | Significant | Fair |
| Ely Pump Storage Dam Benton County | 15 | 1965 | Low | Not Rated |
| Elwick Dam Clallam County | 25 | 1962 | High | Poor |
| Elmer Dam Clark County | 16 | 1958 | High | Satisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.