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 107
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Wrangell Upper City and Borough of Wrangell County | 28 | 1967 | High | Poor |
| Wrangell Lower City and Borough of Wrangell County | 28 | 1968 | High | Poor |
| Whitman Lake Ketchikan Gateway Borough County | 39 | 1927 | High | Satisfactory |
| Westchester Lagoon Dam Municipality of Anchorage County | 22 | 1973 | Significant | Fair |
| Ward Cove Cannery Dam Ketchikan Gateway Borough County | 27 | 1932 | Low | Not Rated |
| Upper Silvis Ketchikan Gateway Borough County | 60 | 1968 | Low | Satisfactory |
| Two Bull Ridge Pond T5 Dam Denali Borough County | 49 | 2000 | Low | Fair |
| Terror Lake Kodiak Island Borough County | 193 | 1984 | Low | Satisfactory |
| Swan Lake Ketchikan Gateway Borough County | 174 | 1984 | High | Satisfactory |
| Stover Dam Kodiak Island Borough County | 11 | 1962 | Low | Not Rated |
| Solomon Gulch Chugach Census Area County | 115 | 1981 | High | Satisfactory |
| Shotter Creek Upper Dam Hoonah-Angoon Census Area County | 9 | 1968 | Significant | Fair |
| Shotgun Creek Div Kodiak Island Borough County | 40 | 1984 | Low | Satisfactory |
| Ship Creek Dam Municipality of Anchorage County | 50 | 1954 | High | Fair |
| Sherwood Estates Dam Matanuska-Susitna Borough County | 20 | 1975 | Low | Not Rated |
| Seldovia Upper Dam Kenai Peninsula Borough County | 25 | 1953 | Low | Poor |
| Sand Pit Dam City and Borough of Juneau County | 33 | 2016 | Low | Fair |
| Salmon Creek City and Borough of Juneau County | 175 | 1914 | High | Satisfactory |
| Roycroft Lake Kenai Peninsula Borough County | 7 | 1979 | Significant | Not Rated |
| 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 |
| Red Dog Mine Water Diversion Dam Northwest Arctic Borough County | 34 | 1991 | Low | Fair |
| Pond 7 Dam City and Borough of Juneau County | 30 | 2005 | Significant | Satisfactory |
| Pond 10 Dam | — | — | Significant | Satisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.