Pr-19 Retention Dam
Key Takeaway
Pr-19 Retention Dam is classified as high hazard in Montana. It was completed in 1936 and is 90 years old. Its primary use is fire protection. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.
Physical Details
| Dam Length | 770 ft |
| Dam Type | Gravity |
| Max Storage | 250 acre-ft |
| Normal Storage | 0 acre-ft |
| Surface Area | 51 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 5,780 cfs |
| Year Completed | 1936 (90 years old) |
| NID ID | MT00793 |
Safety Information
Loss of human life is likely if the dam fails.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
DOI BLM
Federal Government
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Pr-19 Retention Dam?
Pr-19 Retention Dam is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Pr-19 Retention Dam?
Pr-19 Retention Dam is owned by DOI BLM (Federal Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Pr-19 Retention Dam built?
Pr-19 Retention Dam was completed in 1936, making it 90 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 Pr-19 Retention Dam?
Pr-19 Retention 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.
When was Pr-19 Retention Dam last inspected?
Pr-19 Retention Dam was last inspected on July 22, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.