Prairie Nest Ranch 4
Prairie Nest Ranch 4 is an earth dam located in Cascade County, Montana, built in 1963. It carries a Low hazard potential classification.
About Prairie Nest Ranch 4
The primary purpose of Prairie Nest Ranch 4 is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Prairie Nest Ranch (private). It impounds the Rogers Coulee near Fort Benton.
The dam stands 28 feet tall and stretches 75 feet across, and has a maximum storage capacity of 704 acre-feet. Completed in 1963, 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 | Cascade |
| Nearest City | Fort Benton |
| River/Stream | Rogers Coulee |
| Coordinates | 47.52580, -111.00910 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 28 ft |
| Dam Height | 28 ft |
| Dam Length | 75 ft |
| Year Completed | 1963 (63 years old) |
Storage & Hydraulics
| NID Storage | 704 acre-ft |
| Max Storage | 704 acre-ft |
| Normal Storage | 444 acre-ft |
Ownership & Safety
| Purpose | Irrigation |
| Owner | PRAIRIE NEST RANCH |
| Owner Type | Private |
| Hazard Classification | Low |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MT00853 |
| Federal ID | MT00853 |
| More Info | State Dam Safety Program |