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 26–50 of 62
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Kayak Lake Dam Snohomish County | 24 | 1965 | High | Poor |
| Klonaqua Lake Dam Chelan County | 35 | 1933 | High | Poor |
| Koura Dam Kitsap County | 28 | 1949 | High | Poor |
| Kyte Dam Thurston County | 20 | 1966 | High | Poor |
| Lords Lake East Dam Jefferson County | 42 | 1956 | High | Poor |
| Lower Baker Skagit County | 285 | 1927 | High | Poor |
| Meadow Lake Dam Chelan County | 17 | 1920 | High | Poor |
| Middle Pine Lake Dam Spokane County | 11 | 1938 | Low | Poor |
| Mountain Meadows Lake Dam Pend Oreille County | 10 | 1959 | High | Poor |
| Moxee Valley Orchards Dam Yakima County | 39 | 1985 | High | Poor |
| Newcastle Railroad Embankment Dam King County | 55 | 1900 | High | Poor |
| Newman Lake Flood Control Dam Spokane County | 13 | 1976 | High | Poor |
| Nielsen Dam B Snohomish County | 9 | 1973 | High | Poor |
| Nielsen Dam C Snohomish County | 9 | 1973 | High | Poor |
| Nookachamps Hills Dam Skagit County | 54 | 1969 | Significant | Poor |
| Olympic Orchards Dam 1 Yakima County | 21 | 1985 | High | Poor |
| Parker Reservoir Dam Yakima County | 36 | 1955 | High | Poor |
| Ponderosa Lake Dam Stevens County | 60 | 1969 | High | Poor |
| Rabel Dam Okanogan County | 15 | 1940 | High | Poor |
| Rainbow Springs Dam Snohomish County | 14 | 1969 | High | Poor |
| Ruth Lake Dam Kitsap County | 18 | 1977 | Low | Poor |
| Schweitzer Dam and Reservoir Okanogan County | 18 | 1914 | High | Poor |
| Serenity Lake Dam Stevens County | 17 | 1972 | High | Poor |
| Slavic Lake Dam Pierce County | 13 | 1990 | Significant | Poor |
| Spokane Hutterian Brethren Dam Spokane County | 39 | 2006 | High | Poor |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.