Big Reservoir
Key Takeaway
Big Reservoir is classified as low hazard in Montana. It was completed in 1950 and is 76 years old. Its primary use is fire protection.
Physical Details
| Dam Height | 16 ft (taller than 31.7% in MT) |
| Dam Length | 165 ft |
| Dam Type | Earth |
| Max Storage | 56 acre-ft |
| Normal Storage | 30 acre-ft |
| Drainage Area | 2 sq mi |
| Year Completed | 1950 (76 years old) |
| NID ID | MT02000 |
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
BURLINGTON NORTHERN RR
Private
Nearby Dams
Cherry Creek
Rosebud, MT
Low Hazard 24 ftWolf Creek
Rosebud, MT
Low Hazard 31 ftAdams #5
Rosebud, MT
Low Hazard 17 ftSwart #9
Rosebud, MT
Low Hazard 25 ftEast Fork Reservoir
Rosebud, MT
Low Hazard 11 ftBlack Coulee Reservoir
Rosebud, MT
Low Hazard 20 ftStandish #5
Rosebud, MT
Low Hazard 22 ftWhaley #10
Rosebud, MT
Low Hazard 18 ftFrequently Asked Questions
What is the hazard classification of Big Reservoir?
Big Reservoir 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 Big Reservoir?
Big Reservoir is owned by BURLINGTON NORTHERN RR (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Big Reservoir built?
Big Reservoir 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 Big Reservoir?
Big Reservoir 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 Big Reservoir?
Big Reservoir has a dam height of 16 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.