Oset #1
Key Takeaway
Oset #1 is classified as low hazard in Montana. It was completed in 1945 and is 81 years old. Its primary use is fire protection.
Physical Details
| Dam Height | 30 ft (taller than 82.7% in MT) |
| Dam Length | 1,000 ft |
| Dam Type | Earth |
| Max Storage | 71 acre-ft |
| Normal Storage | 41 acre-ft |
| Year Completed | 1945 (81 years old) |
| NID ID | MT02223 |
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
RICKEY R. DOWNS & STEPHANIE J. DOWNS TRUST
Private
Nearby Dams
Sheepland
Musselshell, MT
Low Hazard 15 ftIvy #3
Musselshell, MT
Low Hazard 20 ftRp Griffith #1
Musselshell, MT
Low Hazard 19 ftIvy
Musselshell, MT
Low Hazard 20 ftEliasson (Petroleum)
Petroleum, MT
Low Hazard 19 ftLittle Wall
Musselshell, MT
Low Hazard 20 ftWillow (Musselshell)
Musselshell, MT
Low Hazard 20 ftFrequently Asked Questions
What is the hazard classification of Oset #1?
Oset #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 Oset #1?
Oset #1 is owned by RICKEY R. DOWNS & STEPHANIE J. DOWNS TRUST (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Oset #1 built?
Oset #1 was completed in 1945, making it 81 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 Oset #1?
Oset #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 Oset #1?
Oset #1 has a dam height of 30 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.