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 26–43 of 43
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Monashka Creek Dam Kodiak Island Borough County | 58 | 1982 | Significant | Satisfactory |
| Monashka Creek Dike Kodiak Island Borough County | 45 | 1982 | Significant | 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 |
| Petersburg Upper Dam Petersburg Borough County | 27 | 1950 | Significant | Fair |
| Pillar Creek Dam No.1.A Kodiak Island Borough County | 45 | 1969 | Significant | Fair |
| Pillar Creek Dam No.1.B Kodiak Island Borough County | 24 | 1968 | Significant | Fair |
| Pillar Creek Dam No. 2.A Kodiak Island Borough County | 17 | 1968 | Significant | Fair |
| Pillar Creek Dam No. 2.B Kodiak Island Borough County | 17 | 1968 | Significant | Fair |
| Pillar Creek Dam No. 2.C Kodiak Island Borough County | 24 | 1968 | Significant | Fair |
| Pond 10 Dam | — | — | Significant | Satisfactory |
| Pond 7 Dam City and Borough of Juneau County | 30 | 2005 | Significant | Satisfactory |
| Red Dog Water Supply Dam Northwest Arctic Borough County | 75 | 1989 | Significant | Satisfactory |
| Roycroft Lake Kenai Peninsula Borough County | 7 | 1979 | Significant | Not Rated |
| Shotter Creek Upper Dam Hoonah-Angoon Census Area County | 9 | 1968 | Significant | Fair |
| Westchester Lagoon Dam Municipality of Anchorage County | 22 | 1973 | Significant | Fair |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.