Mcmullin Bros Upper
Mcmullin Bros Upper is an earth dam located in Prairie County, Montana, built in 1960. It carries a Low hazard potential classification.
About Mcmullin Bros Upper
The primary purpose of Mcmullin Bros Upper is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Mcmullin Bros. (private). It impounds the Tr-timber Creek.
The dam stands 30 feet tall and stretches 175 feet across, has a maximum storage capacity of 152 acre-feet, and collects water from a drainage area of 3 square miles. Completed in 1960, 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.
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Location
| State | Montana |
| County | Prairie |
| Nearest City | None |
| River/Stream | Tr-timber Creek |
| Coordinates | 47.03280, -105.93990 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 30 ft |
| Dam Height | 30 ft |
| Dam Length | 175 ft |
| Year Completed | 1960 (66 years old) |
Storage & Hydraulics
| NID Storage | 152 acre-ft |
| Max Storage | 152 acre-ft |
| Normal Storage | 68 acre-ft |
| Drainage Area | 3 sq mi |
| Max Discharge | 320 cfs |
Ownership & Safety
| Purpose | Irrigation |
| Owner | MCMULLIN BROS. |
| Owner Type | Private |
| Hazard Classification | Low |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MT01351 |
| Federal ID | MT01351 |
| More Info | State Dam Safety Program |