Drga Dam
Key Takeaway
Drga Dam is classified as significant hazard in Montana. It was completed in 1938 and is 88 years old. Its primary use is fire protection. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 30 ft (taller than 82.7% in MT) |
| Dam Length | 400 ft |
| Dam Type | Earth |
| Max Storage | 148 acre-ft |
| Normal Storage | 110 acre-ft |
| Surface Area | 13 acres |
| Year Completed | 1938 (88 years old) |
| NID ID | MT03365 |
Safety Information
No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
JIM DRGA
Private
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Low Hazard 20 ftFrequently Asked Questions
What is the hazard classification of Drga Dam?
Drga Dam is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Drga Dam?
Drga Dam is owned by JIM DRGA (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Drga Dam built?
Drga Dam 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 Drga Dam?
Drga Dam 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 Drga Dam?
Drga Dam has a dam height of 30 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 Drga Dam last inspected?
Drga Dam was last inspected on June 9, 1995. Inspection dates indicate when a formal review occurred, not the results of that inspection.