Dams in Lake County, Montana
18Total Dams
9High Hazard
1Significant
Dam Safety in Lake County, Montana
Lake County has 18 dams tracked in the National Inventory of Dams. Of these, 9 are classified as high hazard — meaning failure would probably cause loss of human life. Another 1 carry a significant hazard classification. Currently, 6 dams have a condition assessment of poor or unsatisfactory.
The average dam in Lake County is 86 years old. The most common purpose is irrigation. The tallest dam is Selis Ksanka Qlispe (skq) at 200 ft.
Explore more: Oldest dams in Montana · Tallest dams · High risk dams · Largest reservoirs
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| Selis Ksanka Qlispe (skq) | High | Fair | 200 | Hydroelectric | 1938 |
| Crow | High | Poor | 99 | Irrigation | 1933 |
| Mission | High | Fair | 98 | Irrigation | 1935 |
| Tabor South | High | Poor | 60 | Recreation | 1930 |
| Mcdonald | High | Satisfactory | 47 | Irrigation | 1920 |
| Ninepipe | High | Fair | 41 | Irrigation | 1911 |
| Kicking Horse | High | Unsatisfactory | 30 | Irrigation | 1930 |
| Hell Roaring | High | Unsatisfactory | 30 | Hydroelectric | 1916 |
| Pablo North Dike | High | Unsatisfactory | 5 | Irrigation | 1912 |
| Polson Sewage Lagoon | Significant | 8 | Other | 1963 | |
| Eggebrecht Dam | Low | 35 | Irrigation | 1977 | |
| Maughan Dam | Low | 35 | Irrigation | 1960 | |
| Hillside (lake) | Low | Not Rated | 30 | Irrigation | |
| Ron Jacobson Dam | Low | 25 | Irrigation | 1977 | |
| Horte | Low | Not Rated | 16 | Irrigation | 1916 |
| Marine Dam | Low | 15 | Fire Protection, Stock, Or Small Fish Pond | 1970 | |
| Swartz Lake Dam | Low | 10 | Irrigation | 1960 | |
| Twin (turtle) Dike | Undetermined | Poor | 36 | Recreation | 1932 |