Stoyanoff
Key Takeaway
Stoyanoff is classified as low hazard in Montana. It was completed in 1947 and is 79 years old. Its primary use is irrigation.
Physical Details
| Dam Height | 50 ft (taller than 96.8% in MT) |
| Dam Length | 400 ft |
| Dam Type | Earth |
| Max Storage | 575 acre-ft |
| Normal Storage | 392 acre-ft |
| Drainage Area | 25 sq mi |
| Max Discharge | 320 cfs |
| Year Completed | 1947 (79 years old) |
| NID ID | MT00051 |
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
HALMES LIVESTOCK CO., GENE HALMES
Private
Nearby Dams
Robin Hood #2
Meagher, MT
Significant Hazard 30 ftRobin Hood #1
Meagher, MT
Low Hazard 25 ftKeep Cool
Meagher, MT
Significant Hazard 30 ftDoggett Reservoir
Meagher, MT
High Hazard 50 ftRader, Rodger
Meagher, MT
Low Hazard 20 ftAyers
Meagher, MT
Low Hazard 30 ftDabler Dam
Meagher, MT
Low Hazard 20 ftWhitetail (Meagher)
Meagher, MT
Low Hazard 30 ftFrequently Asked Questions
What is the hazard classification of Stoyanoff?
Stoyanoff 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 Stoyanoff?
Stoyanoff is owned by HALMES LIVESTOCK CO., GENE HALMES (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Stoyanoff built?
Stoyanoff was completed in 1947, making it 79 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 Stoyanoff?
Stoyanoff serves the following purposes: Irrigation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Stoyanoff?
Stoyanoff has a dam height of 50 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 Stoyanoff last inspected?
Stoyanoff was last inspected on October 29, 1993. Inspection dates indicate when a formal review occurred, not the results of that inspection.