South Fork Reservoir
South Fork Reservoir is an earth dam located in Silver Bow County, Montana, built in 1946. It carries a Significant hazard potential classification.
About South Fork Reservoir
The primary purpose of South Fork Reservoir is fire protection, stock, or small fish pond. The dam maintains a small impoundment used for fire suppression, livestock watering, or as a fish pond. The dam is owned by Butte-silver Bow (local government). It impounds the Divide Creek near Buxton.
The dam stands 20 feet tall and stretches 600 feet across, and has a maximum storage capacity of 51 acre-feet. Completed in 1946, the structure is well-established, with more than 75 years of service.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Montana |
| County | Silver Bow |
| Nearest City | Buxton |
| River/Stream | Divide Creek |
| Coordinates | 45.85732, -112.74918 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 20 ft |
| Dam Height | 20 ft |
| Dam Length | 600 ft |
| Year Completed | 1946 (80 years old) |
Storage & Hydraulics
| NID Storage | 51 acre-ft |
| Max Storage | 51 acre-ft |
| Normal Storage | 26 acre-ft |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | BUTTE-SILVER BOW |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MT03725 |
| Federal ID | MT03725 |
| More Info | State Dam Safety Program |