Bn #11
Bn #11 is an earth dam located in Garfield County, Montana, built in 1954. It carries a Low hazard potential classification.
About Bn #11
The primary purpose of Bn #11 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 Burlington Northern Rr (private). It impounds the Tr-light Coulee near Mosby.
The dam stands 14 feet tall and stretches 300 feet across, and has a maximum storage capacity of 105 acre-feet. Completed in 1954, 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 | Garfield |
| Nearest City | Mosby |
| River/Stream | Tr-light Coulee |
| Coordinates | 46.90760, -107.71210 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 14 ft |
| Dam Height | 14 ft |
| Dam Length | 300 ft |
| Year Completed | 1954 (72 years old) |
Storage & Hydraulics
| NID Storage | 105 acre-ft |
| Max Storage | 105 acre-ft |
| Normal Storage | 51 acre-ft |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | BURLINGTON NORTHERN RR |
| Owner Type | Private |
| Hazard Classification | Low |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MT02295 |
| Federal ID | MT02295 |
| More Info | State Dam Safety Program |