Petersen Dam
Key Takeaway
Petersen Dam is classified as low hazard in Montana. It was completed in 1939 and is 87 years old.
Physical Details
| Dam Height | 14 ft (taller than 15.6% in MT) |
| Dam Type | Earth |
| Max Storage | 150 acre-ft |
| Normal Storage | 150 acre-ft |
| Drainage Area | 15 sq mi |
| Year Completed | 1939 (87 years old) |
| NID ID | MT03850 |
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
UNKNOWN
Not Listed
Nearby Dams
Black Out
Sheridan, MT
Low Hazard 15 ftKaty's Lake Dam
Sheridan, MT
Low Hazard 10 ftMedicine Lake Dam No. 12
Sheridan, MT
Low Hazard 10 ftMedicine Lake Dam No. 11
Sheridan, MT
Low Hazard 9 ftLindberg
Sheridan, MT
Low Hazard 14 ftMedicine Lake Dam No. 10
Sheridan, MT
Low Hazard 8 ftNeiser #1
Sheridan, MT
Low Hazard 35 ftFrequently Asked Questions
What is the hazard classification of Petersen Dam?
Petersen Dam 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 Petersen Dam?
Petersen Dam is owned by UNKNOWN (Not Listed). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Petersen Dam built?
Petersen Dam was completed in 1939, making it 87 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.
How tall is Petersen Dam?
Petersen Dam has a dam height of 14 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.
When was Petersen Dam last inspected?
Petersen Dam was last inspected on December 19, 2002. Inspection dates indicate when a formal review occurred, not the results of that inspection.