Alaska Dams
107 dams tracked by the National Inventory of Dams
Total Dams
107
High Hazard
29
27.1%
Poor / Unsatisfactory
11
Average Age
57 yrs
Hazard Classification
Condition Assessment
Federal
5
State
6
Local
45
Private
43
Tallest Dams
- Fort Knox Tailings Dam350 ft
- Blue Lake294 ft
- Green Lake210 ft
- Red Dog Tailings Main Dam208 ft
- Terror Lake193 ft
High Hazard Dams
- Blue LakeHigh
- Red Dog Tailings Main DamHigh
- Salmon CreekHigh
- Swan LakeHigh
- Solomon GulchHigh
Poor Condition Dams
- Hess Creek DamUnsatisfactory
- Wrangell LowerPoor
- Wrangell UpperPoor
- Seldovia Upper DamPoor
- Alitak Cannery Dam #2Poor
All Dams in Alaska
Showing 1–25 of 40
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Whitman Lake Ketchikan Gateway Borough County | 39 | 1927 | High | Satisfactory |
| Upper Silvis Ketchikan Gateway Borough County | 60 | 1968 | Low | Satisfactory |
| Terror Lake Kodiak Island Borough County | 193 | 1984 | Low | Satisfactory |
| Swan Lake Ketchikan Gateway Borough County | 174 | 1984 | High | Satisfactory |
| Solomon Gulch Chugach Census Area County | 115 | 1981 | High | Satisfactory |
| Shotgun Creek Div Kodiak Island Borough County | 40 | 1984 | Low | Satisfactory |
| Salmon Creek City and Borough of Juneau County | 175 | 1914 | High | Satisfactory |
| Red Dog Water Supply Dam Northwest Arctic Borough County | 75 | 1989 | Significant | Satisfactory |
| Red Dog Tailings Main Dam Northwest Arctic Borough County | 208 | 1993 | High | Satisfactory |
| Red Dog Tailings Back Dam Northwest Arctic Borough County | 66 | 2010 | High | Satisfactory |
| Pond 7 Dam City and Borough of Juneau County | 30 | 2005 | Significant | Satisfactory |
| Pond 10 Dam | — | — | Significant | Satisfactory |
| Pogo R.T.P. Dam Southeast Fairbanks Census Area County | 91 | 2005 | High | Satisfactory |
| New Kake Dam Prince of Wales-Hyder Census Area County | 38 | 2007 | High | Satisfactory |
| Monashka Creek Dike Kodiak Island Borough County | 45 | 1982 | Significant | Satisfactory |
| Monashka Creek Dam Kodiak Island Borough County | 58 | 1982 | Significant | Satisfactory |
| Lower Slate Lake Tailings Dam City and Borough of Juneau County | 63 | 2010 | Significant | Satisfactory |
| Lower Silvis Ketchikan Gateway Borough County | 32 | 1954 | Low | Satisfactory |
| Lower Dewey Municipality of Skagway County | 28 | 1905 | Low | Satisfactory |
| Lake Lucile Dam Matanuska-Susitna Borough County | 6 | 1969 | Significant | Satisfactory |
| Lake Connell Ketchikan Gateway Borough County | 96 | 1953 | High | Satisfactory |
| Ketchikan Lakes Ketchikan Gateway Borough County | 34 | 1957 | High | Satisfactory |
| Itasigrook North Slope Borough County | 13 | 1964 | Significant | Satisfactory |
| Icy Creek Reservoir Dam Aleutians West Census Area County | 24 | 1993 | Significant | Satisfactory |
| Green Lake City and Borough of Sitka County | 210 | 1982 | Significant | Satisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.