Wellington Nap D-21b
Key Takeaway
Wellington Nap D-21b is classified as low hazard in Missouri. It was completed in 1973 and is 53 years old. Its primary use is flood risk reduction.
Physical Details
| Dam Height | 43 ft (taller than 91.5% in MO) |
| Dam Length | 400 ft |
| Dam Type | Earth |
| Max Storage | 105 acre-ft |
| Normal Storage | 36 acre-ft |
| Surface Area | 7 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 1,258 cfs |
| Year Completed | 1973 (53 years old) |
| NID ID | MO12001 |
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
LAF SOIL&WTR STRCT DIST
Local Government
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High Hazard 39 ftFrequently Asked Questions
What is the hazard classification of Wellington Nap D-21b?
Wellington Nap D-21b 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 Wellington Nap D-21b?
Wellington Nap D-21b is owned by LAF SOIL&WTR STRCT DIST (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Wellington Nap D-21b built?
Wellington Nap D-21b was completed in 1973, making it 53 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 Wellington Nap D-21b?
Wellington Nap D-21b serves the following purposes: Flood Risk Reduction, Debris Control. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Wellington Nap D-21b?
Wellington Nap D-21b has a dam height of 43 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 Wellington Nap D-21b last inspected?
Wellington Nap D-21b was last inspected on April 27, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.