Long Branch Dam
Key Takeaway
Long Branch Dam is classified as high hazard in Missouri. It was completed in 1976 and is 50 years old. Its primary use is flood risk reduction. 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 | 3,800 ft |
| Dam Type | Earth |
| Max Storage | 98.0K acre-ft |
| Normal Storage | 35.0K acre-ft |
| Surface Area | 2,430 acres |
| Drainage Area | 109 sq mi |
| Max Discharge | 5,570 cfs |
| Year Completed | 1976 (50 years old) |
| NID ID | MO11176 |
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
USACE - Kansas City District
Federal Government
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Low Hazard 25 ftFrequently Asked Questions
What is the hazard classification of Long Branch Dam?
Long Branch 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 Long Branch Dam?
Long Branch Dam is owned by USACE - Kansas City District (Federal Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Long Branch Dam built?
Long Branch Dam was completed in 1976, making it 50 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 Long Branch Dam?
Long Branch Dam serves the following purposes: Flood Risk Reduction, Other, Recreation, Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
When was Long Branch Dam last inspected?
Long Branch Dam was last inspected on October 29, 2018. Inspection dates indicate when a formal review occurred, not the results of that inspection.