Petranek
Key Takeaway
Petranek is classified as low hazard in Montana. It was completed in 1938 and is 88 years old. Its primary use is fire protection.
Physical Details
| Dam Height | 24 ft (taller than 67.5% in MT) |
| Dam Length | 528 ft |
| Dam Type | Earth |
| Max Storage | 109 acre-ft |
| Normal Storage | 67 acre-ft |
| Drainage Area | 1 sq mi |
| Max Discharge | 200 cfs |
| Year Completed | 1938 (88 years old) |
| NID ID | MT01031 |
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
DAVID H. & BARBARA PETRENEK
Private
Nearby Dams
Petranek Reservoir
Fergus, MT
Low Hazard 34 ftTaylor Fish (Fergus)
Fergus, MT
Low Hazard 22 ftTaylor Reservoir (Fergus)
Fergus, MT
Low Hazard 27 ftArmells Reservoir
Fergus, MT
Low Hazard 38 ftRindal
Fergus, MT
Low Hazard 28 ftHey Joe Reservoir
Fergus, MT
Low Hazard 25 ftRobert Bold #2
Fergus, MT
Low Hazard 20 ftElderly Dam
Fergus, MT
Significant Hazard 40 ftFrequently Asked Questions
What is the hazard classification of Petranek?
Petranek 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 Petranek?
Petranek is owned by DAVID H. & BARBARA PETRENEK (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Petranek built?
Petranek was completed in 1938, making it 88 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 Petranek?
Petranek 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 Petranek?
Petranek has a dam height of 24 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.