Dams in Alaska
107
Total Dams
28
High Hazard
26.17%
% High Hazard
57.5 yrs
Average Age
Counties
| County | Dams | High Hazard | % High | Avg Age |
|---|---|---|---|---|
| Municipality of Anchorage | 10 | 5 | 50.00% | 64.0 yrs |
| Ketchikan Gateway Borough | 10 | 5 | 50.00% | 66.7 yrs |
| Kenai Peninsula Borough | 7 | 3 | 42.86% | 59.0 yrs |
| Kodiak Island Borough | 18 | 2 | 11.11% | 58.6 yrs |
| Chugach Census Area | 5 | 2 | 40.00% | 49.8 yrs |
| Northwest Arctic Borough | 5 | 2 | 40.00% | 35.4 yrs |
| City and Borough of Juneau | 8 | 2 | 25.00% | 47.0 yrs |
| Fairbanks North Star Borough | 4 | 1 | 25.00% | 36.8 yrs |
| Prince of Wales-Hyder Census Area | 3 | 1 | 33.33% | 53.0 yrs |
| City and Borough of Sitka | 3 | 1 | 33.33% | 72.0 yrs |
| Petersburg Borough | 3 | 1 | 33.33% | 59.0 yrs |
| Aleutians West Census Area | 9 | 0 | 0.00% | 62.0 yrs |
| Matanuska-Susitna Borough | 4 | 0 | 0.00% | 54.0 yrs |
| Aleutians East Borough | 3 | 0 | 0.00% | 59.5 yrs |
Purpose Breakdown
Tallest Dams in Alaska
| Dam Name | Height | County | Hazard |
|---|---|---|---|
| Fort Knox Tailings Dam | 350 ft | Fairbanks North Star Borough | Significant Hazard |
| Blue Lake | 294 ft | City and Borough of Sitka | High Hazard |
| Green Lake | 210 ft | City and Borough of Sitka | Low Hazard |
| Red Dog Tailings Main Dam | 208 ft | Northwest Arctic Borough | High Hazard |
| Terror Lake | 193 ft | Kodiak Island Borough | Low Hazard |
| Swan Lake | 174 ft | Ketchikan Gateway Borough | High Hazard |
| Salmon Creek | 170 ft | City and Borough of Juneau | High Hazard |
| Bradley Lake Dam | 125 ft | Kenai Peninsula Borough | Low Hazard |
| Solomon Gulch | 115 ft | Chugach Census Area | High Hazard |
| Lake Connell | 96 ft | Ketchikan Gateway Borough | High Hazard |