Mayns Dam
Key Takeaway
Mayns Dam is classified as low hazard in Montana. It was completed in 1940 and is 86 years old. Its primary use is irrigation.
Physical Details
| Dam Height | 14 ft (taller than 15.6% in MT) |
| Dam Length | 450 ft |
| Dam Type | Earth |
| Max Storage | 54 acre-ft |
| Normal Storage | 20 acre-ft |
| Year Completed | 1940 (86 years old) |
| NID ID | MT03276 |
Safety Information
No probable loss of human life and low economic/environmental losses expected.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
B & W RANCH LTD PARTNERSHIP
Private
Nearby Dams
Sterret
Meagher, MT
Low Hazard 23 ftSchindal Battle I
Meagher, MT
Low Hazard 17 ftBattle Creek
Meagher, MT
Low Hazard 34 ftSpringdale #4
Meagher, MT
Low Hazard 26 ftShendell #2
Meagher, MT
Low Hazard 30 ftSpringdale #3
Meagher, MT
Low Hazard 10 ftScrewed Up
Meagher, MT
Low Hazard 10 ftManger
Meagher, MT
Low Hazard 20 ftFrequently Asked Questions
What is the hazard classification of Mayns Dam?
Mayns Dam is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Mayns Dam?
Mayns Dam is owned by B & W RANCH LTD PARTNERSHIP (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Mayns Dam built?
Mayns Dam was completed in 1940, making it 86 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.
What is the primary purpose of Mayns Dam?
Mayns Dam serves the following purposes: Irrigation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Mayns Dam?
Mayns Dam has a dam height of 14 ft. Dam height is measured from the natural streambed at the downstream toe to the top of the dam, and may differ from the visible height.