Dams in Madison County, Montana
29Total Dams
11High Hazard
6Significant
Dam Safety in Madison County, Montana
Madison County has 29 dams tracked in the National Inventory of Dams. Of these, 11 are classified as high hazard — meaning failure would probably cause loss of human life. Another 6 carry a significant hazard classification. Currently, 4 dams have a condition assessment of poor or unsatisfactory.
The average dam in Madison County is 71 years old. The most common purpose is irrigation. The tallest dam is Tailings Impoundment at 155 ft.
Explore more: Oldest dams in Montana · Tallest dams · High risk dams · Largest reservoirs
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| Ruby Dam | High | Satisfactory | 111 | Irrigation | 1938 |
| Willow Creek Dam | High | Poor | 105 | Irrigation | 1938 |
| Cataract Creek Dam | High | Unsatisfactory | 80 | Irrigation | 1959 |
| Big Sky Dam | High | Satisfactory | 52 | Recreation | 1973 |
| Green Hollow Creek Dam | High | Satisfactory | 45 | Recreation | 1990 |
| Madison Dam | High | Satisfactory | 39 | Hydroelectric | 1907 |
| Jackson (madison) | High | Poor | 34 | Irrigation | 1959 |
| South Meadow Creek Dam | High | Not Available | 22 | Irrigation | 1968 |
| Bell Lake Dam | High | Not Available | 20 | Irrigation | 1957 |
| Beaver Ranch Dam | High | Satisfactory | 15 | Fire Protection, Stock, Or Small Fish Pond | 1945 |
| Twin Bridges Wastewater Lagoon Dam | High | Not Rated | 13 | Other | |
| Tailings Impoundment | Significant | 155 | |||
| Norwegian Creek Dam | Significant | 85 | Irrigation | 1958 | |
| Hemund | Significant | 20 | Irrigation | 1974 | |
| Jackson #1 | Significant | 19 | Irrigation | 1924 | |
| Sunrise Lake | Significant | 14 | Irrigation | 1916 | |
| Upper Branham | Significant | Not Rated | 6 | Recreation | 1980 |
| Hacker Dam | Low | 34 | Irrigation | 1953 | |
| Dry Hollow | Low | 25 | Irrigation | 1999 | |
| Mad Chant | Low | 20 | Fire Protection, Stock, Or Small Fish Pond | 1950 | |
| Klatt | Low | Not Available | 16 | Irrigation | 1949 |
| Cosmic Nick | Low | 15 | Fire Protection, Stock, Or Small Fish Pond | 1956 | |
| Middle Axolotl Lake #1 | Low | 15 | Fire Protection, Stock, Or Small Fish Pond | 1945 | |
| Middle Axoloil Lake #2 | Low | 15 | Fire Protection, Stock, Or Small Fish Pond | 1945 | |
| South Axolotl Lake Dam | Low | Unsatisfactory | 15 | ||
| Albro | Low | Not Available | 11 | Irrigation | 1967 |
| Durham | Low | 10 | Fire Protection, Stock, Or Small Fish Pond | 1955 | |
| East Axolotl Lake | Low | 10 | Fire Protection, Stock, Or Small Fish Pond | 1945 | |
| Marsh Lake | Low | Not Available | 8 | Irrigation | 1956 |