Hydroelectric Dams in Alaska
Alaska has 28 hydroelectric dams, of which 9 carry a high hazard classification. The dam generates hydroelectric power by channeling water through turbines, converting the energy of flowing water into electricity.
| # | Dam | County | Height (ft) | Hazard | Condition | Year |
|---|---|---|---|---|---|---|
| 1 | Blue Lake | City and Borough of Sitka | 294 | High | Satisfactory | 1961 |
| 2 | Green Lake | City and Borough of Sitka | 210 | Significant | Satisfactory | 1982 |
| 3 | Terror Lake | Kodiak Island Borough | 193 | Low | Satisfactory | 1984 |
| 4 | Salmon Creek | City and Borough of Juneau | 175 | High | Satisfactory | 1914 |
| 5 | Swan Lake | Ketchikan Gateway Borough | 174 | High | Satisfactory | 1984 |
| 6 | Bradley Lake Dam | Kenai Peninsula Borough | 125 | Low | Satisfactory | 1991 |
| 7 | Upper Silvis | Ketchikan Gateway Borough | 60 | Low | Satisfactory | 1968 |
| 8 | Eklutna Dam | Municipality of Anchorage | 56 | High | Satisfactory | 1965 |
| 9 | Solomon Gulch Spillway | Chugach Census Area | 55 | High | Satisfactory | 1981 |
| 10 | Cooper Lake | Kenai Peninsula Borough | 52 | High | Satisfactory | 1959 |
| 11 | Crystal Lake | Petersburg Borough | 43 | High | Satisfactory | 1955 |
| 12 | Shotgun Creek Div | Kodiak Island Borough | 40 | Low | Satisfactory | 1984 |
| 13 | Whitman Lake | Ketchikan Gateway Borough | 39 | High | Satisfactory | 1927 |
| 14 | Ketchikan Lakes | Ketchikan Gateway Borough | 34 | High | Satisfactory | 1957 |
| 15 | Lower Silvis | Ketchikan Gateway Borough | 32 | Low | Satisfactory | 1954 |
| 16 | Bart Lake Dam | City and Borough of Juneau | 31 | Low | Satisfactory | 2009 |
| 17 | Long Lake Dam | City and Borough of Juneau | 30 | Low | Fair | 1973 |
| 18 | Dewey Forebay | Municipality of Skagway | 30 | Low | Satisfactory | 1905 |
| 19 | Lower Dewey | Municipality of Skagway | 28 | Low | Satisfactory | 1905 |
| 20 | Akutan Hydro Dam | Aleutians East Borough | 21 | Significant | Fair | 1993 |
| 21 | Annex Creek | City and Borough of Juneau | 20 | Low | Satisfactory | 1968 |
| 22 | Chignik | Lake and Peninsula Borough | 17 | Low | Satisfactory | 1947 |
| 23 | Fawn Lake Dam North | Ketchikan Gateway Borough | 15 | Significant | Satisfactory | 1959 |
| 24 | Mahoona Dam | Kodiak Island Borough | 13 | Low | Unsatisfactory | 1986 |
| 25 | Bluff Lake Diversion | Ketchikan Gateway Borough | 10 | Low | Not Rated | 1984 |
| 26 | Shotter Creek Upper Dam | Hoonah-Angoon Census Area | 9 | Significant | Fair | 1968 |
| 27 | Roycroft Lake | Kenai Peninsula Borough | 7 | Significant | Not Rated | 1979 |
| 28 | Chuniixsax Hydro Dam | Aleutians West Census Area | 0 | Significant | Not Rated |