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 51–75 of 107
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Kwethluk Wastewater Lagoon Dam Bethel Census Area County | 13 | — | Significant | Not Rated |
| Lake Connell Ketchikan Gateway Borough County | 96 | 1953 | High | Satisfactory |
| Lake Demarie Dam Aleutians West Census Area County | 19 | 1951 | Significant | Not Rated |
| Lake Leone Dam Aleutians West Census Area County | 9 | 1945 | Significant | Not Rated |
| Lake Lucile Dam Matanuska-Susitna Borough County | 6 | 1969 | Significant | Satisfactory |
| Lake Osprey Dam City and Borough of Sitka County | 8 | 1919 | Low | Not Rated |
| Lake "O" The Hills Municipality of Anchorage County | 13 | 1975 | High | Fair |
| Long Lake Dam City and Borough of Juneau County | 30 | 1973 | Low | Fair |
| Lot D9 Dam | 26 | — | Significant | Not Rated |
| Lowell Creek Kenai Peninsula Borough County | 34 | 1945 | High | Not Rated |
| Lower Dewey Municipality of Skagway County | 28 | 1905 | Low | Satisfactory |
| Lower Fire Lake Dam Municipality of Anchorage County | 13 | 1960 | High | Fair |
| Lower Silvis Ketchikan Gateway Borough County | 32 | 1954 | Low | Satisfactory |
| Lower Slate Lake Tailings Dam City and Borough of Juneau County | 63 | 2010 | Significant | Satisfactory |
| Mahoona Dam Kodiak Island Borough County | 13 | 1986 | Low | Unsatisfactory |
| Meals Lake Dam Chugach Census Area County | 23 | 1972 | High | Fair |
| Monashka Creek Dam Kodiak Island Borough County | 58 | 1982 | Significant | Satisfactory |
| Monashka Creek Dike Kodiak Island Borough County | 45 | 1982 | Significant | Satisfactory |
| Moose Creek Dam Fairbanks North Star Borough County | 60 | 1979 | High | Not Available |
| New England Fish CO Dam Aleutians East Borough County | 10 | 1940 | Low | Not Rated |
| New Kake Dam Prince of Wales-Hyder Census Area County | 38 | 2007 | High | Satisfactory |
| Nixon Fork Tailings Dam Yukon-Koyukuk Census Area County | 64 | 1995 | Significant | Fair |
| North Fork Lake Dam Prince of Wales-Hyder Census Area County | 12 | — | Significant | Not Rated |
| North Lake East Dam Aleutians West Census Area County | 14 | 1970 | Significant | Not Rated |
| North Lake West Dam Aleutians West Census Area County | 10 | 1945 | Significant | Not Rated |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.