Dewey
Key Takeaway
Dewey is classified as low hazard in Montana. It was completed in 1948 and is 78 years old. Its primary use is fire protection.
Physical Details
| Dam Height | 25 ft (taller than 70.3% in MT) |
| Dam Length | 200 ft |
| Dam Type | Earth |
| Max Storage | 82 acre-ft |
| Normal Storage | 49 acre-ft |
| Drainage Area | 4 sq mi |
| Year Completed | 1948 (78 years old) |
| NID ID | MT02727 |
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
ALICE V HJORT
Private
Nearby Dams
Neiser #1
Sheridan, MT
Low Hazard 35 ftMedicine Lake Dam No. 4
Sheridan, MT
Low Hazard 15 ftBeaver Pond Dam
Sheridan, MT
Low Hazard 11 ftCornhuskers
Sheridan, MT
Low Hazard 25 ftFreske #1
Sheridan, MT
Low Hazard 8 ftEngstrom
Sheridan, MT
Low Hazard 24 ftMedicine Lake Dam No. 10
Sheridan, MT
Low Hazard 8 ftHomestead Dam
Roosevelt, MT
Low Hazard 14 ftFrequently Asked Questions
What is the hazard classification of Dewey?
Dewey 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 Dewey?
Dewey is owned by ALICE V HJORT (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Dewey built?
Dewey was completed in 1948, making it 78 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 Dewey?
Dewey 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 Dewey?
Dewey has a dam height of 25 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.