Dams in Northwest Arctic Borough, Alaska
5Total Dams
2High Hazard
2Significant
Dam Safety in Northwest Arctic Borough, Alaska
Northwest Arctic Borough has 5 dams tracked in the National Inventory of Dams. Of these, 2 are classified as high hazard — meaning failure would probably cause loss of human life. Another 2 carry a significant hazard classification. Currently, 1 dams have a condition assessment of poor or unsatisfactory.
The average dam in Northwest Arctic Borough is 35 years old. The most common purpose is water supply. The tallest dam is Red Dog Tailings Main Dam at 208 ft.
Explore more: Oldest dams in Alaska · Tallest dams · High risk dams · Largest reservoirs
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| Red Dog Tailings Main Dam | High | Satisfactory | 208 | Tailings | 1993 |
| Red Dog Tailings Back Dam | High | Satisfactory | 66 | Other | 2010 |
| Red Dog Water Supply Dam | Significant | Satisfactory | 75 | Water Supply | 1989 |
| Kotzebue Water Supply Dam | Significant | Unsatisfactory | 16 | Water Supply | 1970 |
| Red Dog Mine Water Diversion Dam | Low | Fair | 34 | Flood Risk Reduction | 1991 |