Mincoff #2
Key Takeaway
Mincoff #2 is classified as significant hazard in Montana. It was completed in 1950 and is 76 years old. Its primary use is fire protection. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 20 ft (taller than 44.5% in MT) |
| Dam Length | 594 ft |
| Dam Type | Earth |
| Max Storage | 317 acre-ft |
| Normal Storage | 134 acre-ft |
| Drainage Area | 5 sq mi |
| Max Discharge | 650 cfs |
| Year Completed | 1950 (76 years old) |
| NID ID | MT01081 |
Safety Information
No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
L.J. GREEN & SONS, INC.
Private
Nearby Dams
Magnesia
Garfield, MT
Low Hazard 12 ftMincoff Reservoir #1
Garfield, MT
Low Hazard 22 ftBeecher #6
Garfield, MT
Low Hazard 16 ftBob #3
Garfield, MT
Low Hazard 20 ftSmith Ranch 2
Garfield, MT
Low Hazard 20 ftClaribell #2
Garfield, MT
Low Hazard 20 ftBob #1
Garfield, MT
Low Hazard 20 ftSmith Ranch 6
Garfield, MT
Low Hazard 25 ftFrequently Asked Questions
What is the hazard classification of Mincoff #2?
Mincoff #2 is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Mincoff #2?
Mincoff #2 is owned by L.J. GREEN & SONS, INC. (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Mincoff #2 built?
Mincoff #2 was completed in 1950, making it 76 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 Mincoff #2?
Mincoff #2 serves the following purposes: Fire Protection, Stock, Or Small Fish Pond. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Mincoff #2?
Mincoff #2 has a dam height of 20 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.