John Ragsdale Dam
Key Takeaway
John Ragsdale Dam is classified as low hazard in Montana. It was completed in 1980 and is 46 years old. Its primary use is irrigation.
Physical Details
| Dam Height | 19 ft (taller than 42.9% in MT) |
| Dam Length | 900 ft |
| Dam Type | Earth |
| Max Storage | 100 acre-ft |
| Normal Storage | 61 acre-ft |
| Max Discharge | 320 cfs |
| Year Completed | 1980 (46 years old) |
| NID ID | MT03833 |
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
JOHN RAGSDALE
Private
Nearby Dams
Frequently Asked Questions
What is the hazard classification of John Ragsdale Dam?
John Ragsdale 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 John Ragsdale Dam?
John Ragsdale Dam is owned by JOHN RAGSDALE (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was John Ragsdale Dam built?
John Ragsdale Dam was completed in 1980, making it 46 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 John Ragsdale Dam?
John Ragsdale Dam 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 John Ragsdale Dam?
John Ragsdale Dam has a dam height of 19 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 John Ragsdale Dam last inspected?
John Ragsdale Dam was last inspected on November 1, 1981. Inspection dates indicate when a formal review occurred, not the results of that inspection.