Nnn Ranch #2 is an earth dam located in Rosebud County, Montana, built in 1959. It carries a Low hazard potential classification.
Dam profile
NID height · 10 ft10 ft tall and 125 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 Nnn Ranch #2
The primary purpose of Nnn Ranch #2 is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Vt Ranch Inc (private). It impounds the Tr-mcginnis Creek near Forsyth.
The dam stands 10 feet tall and stretches 125 feet across, and has a maximum storage capacity of 60 acre-feet. Completed in 1959, 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 | Forsyth |
| River/Stream | Tr-mcginnis Creek |
| Coordinates | 46.79170, -107.36050 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 10 ft |
| Dam Height | 10 ft |
| Dam Length | 125 ft |
| Year Completed | 1959 (67 years old) |
Storage & Hydraulics
| NID Storage | 60 acre-ft |
| Max Storage | 60 acre-ft |
| Normal Storage | 13 acre-ft |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Vt Ranch Inc |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MT02039 |
| Federal ID | MT02039 |
| More Info | State Dam Safety Program |