Jessup Mill Pond Dam
Key Takeaway
Jessup Mill Pond Dam is classified as high hazard in Montana. It was completed in 1941 and is 85 years old. Its primary use is water supply. 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 Height | 27 ft (taller than 79.3% in MT) |
| Dam Length | 290 ft |
| Dam Type | Earth |
| Max Storage | 390 acre-ft |
| Normal Storage | 205 acre-ft |
| Surface Area | 23 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 2,078 cfs |
| Year Completed | 1941 (85 years old) |
| NID ID | MT03425 |
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
US FISH AND WILDLIFE SERVICE
Federal Government
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Jessup Mill Pond Dam?
Jessup Mill Pond 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 Jessup Mill Pond Dam?
Jessup Mill Pond Dam is owned by US FISH AND WILDLIFE SERVICE (Federal Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Jessup Mill Pond Dam built?
Jessup Mill Pond Dam was completed in 1941, making it 85 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 Jessup Mill Pond Dam?
Jessup Mill Pond Dam serves the following purposes: Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Jessup Mill Pond Dam?
Jessup Mill Pond Dam has a dam height of 27 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 Jessup Mill Pond Dam last inspected?
Jessup Mill Pond Dam was last inspected on October 7, 2019. Inspection dates indicate when a formal review occurred, not the results of that inspection.