Dams in Missoula County, Montana
22Total Dams
6High Hazard
9Significant
Dam Safety in Missoula County, Montana
Missoula County has 22 dams tracked in the National Inventory of Dams. Of these, 6 are classified as high hazard — meaning failure would probably cause loss of human life. Another 9 carry a significant hazard classification. Currently, 2 dams have a condition assessment of poor or unsatisfactory.
The average dam in Missoula County is 82 years old. The most common purpose is irrigation. The tallest dam is Black Lake at 75 ft.
Explore more: Oldest dams in Montana · Tallest dams · High risk dams · Largest reservoirs
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| Black Lake | High | Unsatisfactory | 75 | Recreation | 1967 |
| Jocko | High | Poor | 51 | Irrigation | 1937 |
| Isaac Creek | High | Satisfactory | 32 | Irrigation | 1948 |
| Blixit Creek | High | Satisfactory | 30 | Irrigation | 1961 |
| Carlton Lake #1 | High | 22 | Irrigation | 1899 | |
| Spartan/playfair Park Retention Basins | High | Satisfactory | 8 | Flood Risk Reduction | 2003 |
| Big Lake | Significant | 30 | Water Supply | 1915 | |
| Kona Ranch | Significant | 29 | Irrigation | 1959 | |
| Smurfit-stone Container Storage Ponds | Significant | 25 | |||
| Little Lake | Significant | 25 | Water Supply | 1912 | |
| Spring Creek | Significant | 15 | Irrigation | 1951 | |
| Glacier Lake Dam | Significant | 12 | Water Supply | 1915 | |
| Sanders Lake Dam #1 North | Significant | 10 | Water Supply | 1913 | |
| Mckinley Lake | Significant | 7 | Water Supply | 1923 | |
| Big Sky Lake Dam (missoula) | Significant | 7 | Recreation | ||
| Jones Meadow Dam | Low | 34 | Irrigation | 1964 | |
| Lepus | Low | 30 | Irrigation | 1956 | |
| Woodchuck | Low | 25 | Irrigation | 1960 | |
| Pollocks Jh Valley Of The Moon | Low | 25 | Fire Protection, Stock, Or Small Fish Pond | 1960 | |
| Wills, R. | Low | 20 | Irrigation | 1966 | |
| Scheffer (missoula) | Low | 15 | Irrigation | 1948 | |
| Peterson Lake | Low | 12 | Irrigation | 1920 |