Sun Coulee is an earth dam located in Rosebud County, Montana, built in 1956. It carries a Low hazard potential classification.
Dam profile
NID height · 27 ft27 ft tall and 1,000 ft long, taller than 59% of U.S. dams with a recorded height. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Sun Coulee
The primary purpose of Sun Coulee 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 Big Timber Livestock Co (private). It impounds the Sun Coulee near Forsyth.
The dam stands 27 feet tall and stretches 1,000 feet across, and has a maximum storage capacity of 476 acre-feet. Completed in 1956, the structure is well into its service life at over 50 years old.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected 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 | Rosebud |
| Nearest City | Forsyth |
| River/Stream | Sun Coulee |
| Coordinates | 46.56730, -107.30450 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 27 ft |
| Dam Height | 27 ft |
| Dam Length | 1,000 ft |
| Year Completed | 1956 (70 years old) |
Storage & Hydraulics
| NID Storage | 476 acre-ft |
| Max Storage | 476 acre-ft |
| Normal Storage | 319 acre-ft |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | Big Timber Livestock Co |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MT00127 |
| Federal ID | MT00127 |
| More Info | State Dam Safety Program |