Ralph Hennemann Lake
Key Takeaway
Ralph Hennemann Lake is classified as low hazard in Missouri. It was completed in 1992 and is 34 years old. Its primary use is flood risk reduction.
Physical Details
| Dam Height | 25 ft (taller than 23.5% in MO) |
| Dam Length | 386 ft |
| Dam Type | Earth |
| Max Storage | 212 acre-ft |
| Normal Storage | 170 acre-ft |
| Surface Area | 3 acres |
| Drainage Area | 128 sq mi |
| Max Discharge | 239 cfs |
| Year Completed | 1992 (34 years old) |
| NID ID | MO50849 |
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
RALPH HENNEMANN
Private
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Low Hazard 22 ftFrequently Asked Questions
What is the hazard classification of Ralph Hennemann Lake?
Ralph Hennemann Lake 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 Ralph Hennemann Lake?
Ralph Hennemann Lake is owned by RALPH HENNEMANN (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Ralph Hennemann Lake built?
Ralph Hennemann Lake was completed in 1992, making it 34 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 Ralph Hennemann Lake?
Ralph Hennemann Lake serves the following purposes: Flood Risk Reduction, Fish And Wildlife Pond, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Ralph Hennemann Lake?
Ralph Hennemann Lake has a dam height of 25 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.