Coleman #1
Key Takeaway
Coleman #1 is classified as low hazard in Montana. It was completed in 1960 and is 66 years old. Its primary use is fire protection.
Physical Details
| Dam Height | 18 ft (taller than 36.9% in MT) |
| Dam Length | 300 ft |
| Dam Type | Earth |
| Max Storage | 131 acre-ft |
| Normal Storage | 49 acre-ft |
| Drainage Area | 1 sq mi |
| Max Discharge | 150 cfs |
| Year Completed | 1960 (66 years old) |
| NID ID | MT02375 |
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
COLEMAN MURNION
Private
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Low Hazard 18 ftFrequently Asked Questions
What is the hazard classification of Coleman #1?
Coleman #1 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 Coleman #1?
Coleman #1 is owned by COLEMAN MURNION (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Coleman #1 built?
Coleman #1 was completed in 1960, making it 66 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 Coleman #1?
Coleman #1 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 Coleman #1?
Coleman #1 has a dam height of 18 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.