Mahan And Hoyt Reservoir
Mahan And Hoyt Reservoir is an earth dam located in Valley County, Montana, built in 1915. It carries a Low hazard potential classification.
About Mahan And Hoyt Reservoir
The primary purpose of Mahan And Hoyt Reservoir is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Wesen Family (private). It impounds the Brazil Creek near Glasgow.
The dam stands 8 feet tall and stretches 3,195 feet across, has a maximum storage capacity of 864 acre-feet, and collects water from a drainage area of 3 square miles. Completed in 1915, the structure is over a century 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. The most recent inspection on record was 07/01/2003. That was over 22 years ago.
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Location
| State | Montana |
| County | Valley |
| Nearest City | Glasgow |
| River/Stream | Brazil Creek |
| Coordinates | 48.18890, -106.74000 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 8 ft |
| Dam Height | 8 ft |
| Dam Length | 3,195 ft |
| Year Completed | 1915 (111 years old) |
Storage & Hydraulics
| NID Storage | 864 acre-ft |
| Max Storage | 864 acre-ft |
| Normal Storage | 364 acre-ft |
| Drainage Area | 3 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | WESEN FAMILY |
| Owner Type | Private |
| Hazard Classification | Low |
| Last Inspection | 07/01/2003 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MT03024 |
| Federal ID | MT03024 |
| More Info | State Dam Safety Program |