Dams in Pondera County, Montana
43Total Dams
4High Hazard
7Significant
Dam Safety in Pondera County, Montana
Pondera County has 43 dams tracked in the National Inventory of Dams. Of these, 4 are classified as high hazard — meaning failure would probably cause loss of human life. Another 7 carry a significant hazard classification.
The average dam in Pondera County is 83 years old. The most common purpose is fire protection, stock, or small fish pond. The tallest dam is Swift (pondera) at 205 ft.
Explore more: Oldest dams in Montana · Tallest dams · High risk dams · Largest reservoirs
Data note: Hazard potential describes the consequences if a dam failed; it does not predict the likelihood of failure. Inspection, condition, and emergency-plan fields can be incomplete or delayed. Check state dam-safety officials and local emergency managers for official guidance.
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| Swift (pondera) | High | Satisfactory | 205 | Irrigation | 1967 |
| Lake Frances East Dam | High | Satisfactory | 59 | Irrigation | 1909 |
| Swift Dike (pondera) | High | Satisfactory | 53 | Irrigation | 1967 |
| Lake Frances North Dam | High | Satisfactory | 22 | Irrigation | 1909 |
| Aldebaran | Significant | 35 | Fire Protection, Stock, Or Small Fish Pond | 1920 | |
| Cracker | Significant | 35 | Fire Protection, Stock, Or Small Fish Pond | 1915 | |
| Fowl Mouth | Significant | 30 | Fire Protection, Stock, Or Small Fish Pond | 1950 | |
| Curry Dam | Significant | 27 | Irrigation | ||
| Johnson, Howard (pondera) | Significant | 15 | Other | 1939 | |
| Fowler Dam #2 (pondera) | Significant | 12 | Fire Protection, Stock, Or Small Fish Pond | 1950 | |
| Walstom | Significant | 10 | Fire Protection, Stock, Or Small Fish Pond | 1920 | |
| Bull Pen #2 | Low | 30 | Fire Protection, Stock, Or Small Fish Pond | 1960 | |
| Fowler #1 (pondera) | Low | 30 | Fire Protection, Stock, Or Small Fish Pond | 1909 | |
| Bull Pen #1 | Low | 30 | Fire Protection, Stock, Or Small Fish Pond | 1960 | |
| Keil Ranch Reservoir #1 | Low | 30 | Fire Protection, Stock, Or Small Fish Pond | 1940 | |
| Letz Lake | Low | 30 | Fire Protection, Stock, Or Small Fish Pond | 1952 | |
| Mccracken, Tom | Low | 25 | Fire Protection, Stock, Or Small Fish Pond | 1950 | |
| Fish Lake (pondera) | Low | 25 | Irrigation | 1960 | |
| Mclean And Sons Incorporated #1 | Low | 22 | Fire Protection, Stock, Or Small Fish Pond | 1948 | |
| Just Barely | Low | 22 | Recreation | 1964 | |
| Floating Rib | Low | 20 | Fire Protection, Stock, Or Small Fish Pond | 1920 | |
| Kauk | Low | 20 | Fire Protection, Stock, Or Small Fish Pond | 1940 | |
| Kitty Milk | Low | 20 | Fire Protection, Stock, Or Small Fish Pond | 1944 | |
| Banka Dama | Low | 20 | Fire Protection, Stock, Or Small Fish Pond | 1930 | |
| Snortland Dam | Low | 20 | Recreation | 1940 | |
| Orcutt Ranch Company | Low | 20 | Fire Protection, Stock, Or Small Fish Pond | 1948 | |
| Scott Ranch | Low | 20 | Irrigation | 1961 | |
| Ponderosa Pine | Low | 20 | Fire Protection, Stock, Or Small Fish Pond | 1968 | |
| Black Out (pondera) | Low | 18 | Fire Protection, Stock, Or Small Fish Pond | 1928 | |
| Widower | Low | 18 | Irrigation | 1954 | |
| Dachau | Low | 15 | Fire Protection, Stock, Or Small Fish Pond | 1960 | |
| Dato | Low | 15 | Fire Protection, Stock, Or Small Fish Pond | 1960 | |
| Rigby, South | Low | 15 | Irrigation | 1918 | |
| Otilalda | Low | 15 | Water Supply | 1960 | |
| Green Lake Dam | Low | Not Available | 13 | 1939 | |
| Cancer | Low | 10 | Fire Protection, Stock, Or Small Fish Pond | 1930 | |
| Apocolipse | Low | 10 | Fire Protection, Stock, Or Small Fish Pond | 1930 | |
| Tedson Reservoir | Low | 10 | Fire Protection, Stock, Or Small Fish Pond | 1958 | |
| Berland Skorupa Berland | Low | 10 | Fire Protection, Stock, Or Small Fish Pond | 1940 | |
| Bergstrom's Farms | Low | 10 | Fire Protection, Stock, Or Small Fish Pond | 1936 | |
| Bergstrom's Farms #2 | Low | 10 | Irrigation | 1936 | |
| Skorupa | Low | 8 | Irrigation | 1953 | |
| Marias Hereford Ranch #30 | Low | 8 | Fire Protection, Stock, Or Small Fish Pond | 1960 |