43Total Dams
5High Hazard
4Significant
Dam Safety in Cascade County, Montana
Cascade County has 43 dams tracked in the National Inventory of Dams. Of these, 5 are classified as high hazard — meaning failure would probably cause loss of human life. Another 4 carry a significant hazard classification. Currently, 1 dam has a condition assessment of poor or unsatisfactory.
The average dam in Cascade County is 78 years old. The most common purpose is fire protection, stock, or small fish pond. The tallest dam is Morony at 107 ft.
Explore more: Oldest dams in Montana · Tallest dams · High risk dams · Largest reservoirs
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| Morony | High | Satisfactory | 107 | Hydroelectric | 1929 |
| Cochrane | High | Fair | 105 | Hydroelectric | 1957 |
| Ryan | High | Satisfactory | 82 | Hydroelectric | 1915 |
| Rainbow | High | Satisfactory | 44 | Hydroelectric | 1910 |
| Black Eagle | High | Poor | 41 | Hydroelectric | 1891 |
| Gollaher Reservoir | Significant | Not assessed | 38 | Irrigation | 1945 |
| Middle Creek Lake (cascade) | Significant | Not assessed | 30 | Irrigation | 1950 |
| Spun | Significant | Not assessed | 15 | Water Supply | 1960 |
| Manchester | Significant | Not assessed | 8 | Other | |
| Sheffels Reservoir | Low | Not assessed | 68 | Fire Protection, Stock, Or Small Fish Pond | 1963 |
| O'day #2 | Low | Not assessed | 60 | Fire Protection, Stock, Or Small Fish Pond | 1956 |
| Prairie Nest Ranch 3 | Low | Not assessed | 44 | Irrigation | 1959 |
| Spaniard | Low | Not assessed | 42 | Irrigation | 1962 |
| Elder Elmer | Low | Not assessed | 36 | Irrigation | 1953 |
| Neuman Dam | Low | Not assessed | 35 | Irrigation | 1956 |
| Sunny Bueno | Low | Not assessed | 30 | Fire Protection, Stock, Or Small Fish Pond | 1953 |
| Mesaros | Low | Not assessed | 30 | Fire Protection, Stock, Or Small Fish Pond | 1958 |
| Prairie Nest Ranch 1 | Low | Not assessed | 30 | Irrigation | 1956 |
| Hound Creek | Low | Not assessed | 30 | Irrigation | 1953 |
| Dawson Ranch #1 | Low | Not assessed | 30 | Flood Risk Reduction | 1948 |
| Dick Golie Wildlife Dam | Low | Not assessed | 30 | Recreation | 1965 |
| Prairie Nest Ranch 4 | Low | Not assessed | 28 | Irrigation | 1963 |
| Neuman #2 | Low | Not assessed | 25 | Fire Protection, Stock, Or Small Fish Pond | 1930 |
| Spring Creek Lake (cascade) | Low | Not assessed | 25 | Irrigation | 1930 |
| Payton Place | Low | Not assessed | 20 | Fire Protection, Stock, Or Small Fish Pond | 1965 |
| Muddy Spots | Low | Not assessed | 20 | Water Supply | 1938 |
| Charlotts Webb | Low | Not assessed | 20 | Fire Protection, Stock, Or Small Fish Pond | 1960 |
| Sand Dollars | Low | Not assessed | 20 | Fire Protection, Stock, Or Small Fish Pond | 1960 |
| Prairie Nest Ranch 2 | Low | Not assessed | 20 | Fire Protection, Stock, Or Small Fish Pond | 1920 |
| Gmg | Low | Not assessed | 20 | Fire Protection, Stock, Or Small Fish Pond | 1960 |
| Dana-cameron Ranch | Low | Not assessed | 20 | Fire Protection, Stock, Or Small Fish Pond | 1940 |
| Gollaher #2 | Low | Not assessed | 18 | Water Supply | 1930 |
| Big Dumb Bunny | Low | Not assessed | 16 | Fire Protection, Stock, Or Small Fish Pond | 1972 |
| Missouri Bird | Low | Not assessed | 15 | Fire Protection, Stock, Or Small Fish Pond | 1930 |
| Webb #1 | Low | Not assessed | 15 | Flood Risk Reduction | 1962 |
| Dry Fork Fairhaven #2 | Low | Not assessed | 15 | Fire Protection, Stock, Or Small Fish Pond | 1943 |
| W C Eustance #1 | Low | Not assessed | 14 | Fire Protection, Stock, Or Small Fish Pond | 1945 |
| Flicked Bic | Low | Not assessed | 12 | Fire Protection, Stock, Or Small Fish Pond | 1960 |
| Deiphobus | Low | Not assessed | 10 | Fire Protection, Stock, Or Small Fish Pond | 1953 |
| Willow Belt | Low | Not assessed | 10 | Irrigation | 1951 |
| Leveque Reservoir | Low | Not assessed | 10 | Fire Protection, Stock, Or Small Fish Pond | 1930 |
| Blooming Creek Dam | Low | Not assessed | 8 | Fire Protection, Stock, Or Small Fish Pond | 1960 |
| Dry Fork Fairhaven #1 | Low | Not assessed | 8 | Fire Protection, Stock, Or Small Fish Pond | 1947 |