Mcmullin Bros Cooperative is an earth dam located in Prairie County, Montana, built in 1964. It carries a Low hazard potential classification.
Dam profile
NID height · 30 ft30 ft tall and 300 ft long, taller than 68% 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 Mcmullin Bros Cooperative
The primary purpose of Mcmullin Bros Cooperative 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 Mcmullin Bros. (private). It impounds the Timber Creek.
The dam stands 30 feet tall and stretches 300 feet across, has a maximum storage capacity of 50 acre-feet, and collects water from a drainage area of 6 square miles. Completed in 1964, 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 | Timber Creek |
| Coordinates | 47.04550, -105.92040 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 30 ft |
| Dam Height | 30 ft |
| Dam Length | 300 ft |
| Year Completed | 1964 (62 years old) |
Storage & Hydraulics
| NID Storage | 50 acre-ft |
| Max Storage | 50 acre-ft |
| Normal Storage | 29 acre-ft |
| Drainage Area | 6 sq mi |
| Max Discharge | 904 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | Mcmullin Bros. |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MT01350 |
| Federal ID | MT01350 |
| More Info | State Dam Safety Program |