O'haire
O'haire is an earth dam located in Toole County, Montana, built in 1954. It carries a Low hazard potential classification.
About O'haire
The primary purpose of O'haire is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Doris G Iverson (private). It impounds the Beaupre Coulee.
The dam stands 23 feet tall and stretches 50 feet across, has a maximum storage capacity of 320 acre-feet, and collects water from a drainage area of 7 square miles. 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 | Toole |
| Nearest City | None |
| River/Stream | Beaupre Coulee |
| Coordinates | 48.92150, -111.77280 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 23 ft |
| Dam Height | 23 ft |
| Dam Length | 50 ft |
| Year Completed | 1954 (72 years old) |
Storage & Hydraulics
| NID Storage | 320 acre-ft |
| Max Storage | 320 acre-ft |
| Normal Storage | 300 acre-ft |
| Drainage Area | 7 sq mi |
| Max Discharge | 110 cfs |
Ownership & Safety
| Purpose | Irrigation |
| Owner | DORIS G IVERSON |
| Owner Type | Private |
| Hazard Classification | Low |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MT00440 |
| Federal ID | MT00440 |
| More Info | State Dam Safety Program |