Hook #50 is an earth dam located in Rosebud County, Montana, built in 1958. It carries a Low hazard potential classification.
Dam profile
NID height · 18 ft18 ft tall and 320 ft long. 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 Hook #50
The primary purpose of Hook #50 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 Hook Ranch (private). It impounds the Sand Butte Coulee near Thurlow.
The dam stands 18 feet tall and stretches 320 feet across, and has a maximum storage capacity of 56 acre-feet. Completed in 1958, 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 | Rosebud |
| Nearest City | Thurlow |
| River/Stream | Sand Butte Coulee |
| Coordinates | 46.40070, -106.34740 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 18 ft |
| Dam Height | 18 ft |
| Dam Length | 320 ft |
| Year Completed | 1958 (68 years old) |
Storage & Hydraulics
| NID Storage | 56 acre-ft |
| Max Storage | 56 acre-ft |
| Normal Storage | 23 acre-ft |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | Hook Ranch |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MT01761 |
| Federal ID | MT01761 |
| More Info | State Dam Safety Program |