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
High29 (27.1%)
Significant43 (40.2%)
Low35 (32.7%)
Condition Assessment
Satisfactory40 (37.4%)
Fair27 (25.2%)
Poor / Unsatisfactory11 (10.3%)
Not Rated29 (27.1%)
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 26–27 of 27
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Bettinger Upper Reservoir Dam Kodiak Island Borough County | 67 | 1968 | High | Fair |
| Akutan Hydro Dam Aleutians East Borough County | 21 | 1993 | Significant | Fair |
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Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.