11Total Dams
3High Hazard
3Significant
Dam Safety in Deer Lodge County, Montana
Deer Lodge County has 11 dams tracked in the National Inventory of Dams. Of these, 3 are classified as high hazard — meaning failure would probably cause loss of human life. Another 3 carry a significant hazard classification. Currently, 1 dam has a condition assessment of poor or unsatisfactory.
The average dam in Deer Lodge County is 109 years old. The most common purpose is irrigation. The tallest dam is West Dam at 100 ft.
Explore more: Oldest dams in Montana · Tallest dams · High risk dams · Largest reservoirs
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| Georgetown Dam | High | Satisfactory | 55 | Hydroelectric | 1900 |
| Storm Lake Dam | High | Poor | 29 | Irrigation | 1898 |
| Silver Lake West Dam | High | Fair | 17 | Irrigation | 1918 |
| West Dam | Significant | Satisfactory | 100 | ||
| East Dam | Significant | Satisfactory | 80 | ||
| Thornton Lake Dam | Significant | Not assessed | 11 | Irrigation | 1904 |
| Meyer's Dam | Low | Not assessed | 25 | Water Supply | 1902 |
| Babcock | Low | Not assessed | 15 | Irrigation | 1953 |
| Heapby Reservoir | Low | Not assessed | 15 | Irrigation | 1958 |
| Silver Lake East Dam | Low | Not assessed | 11 | Irrigation | 1918 |
| Hearst Lake | Low | Not assessed | 9 | Water Supply | 1898 |