Wellington Nap A-21
Key Takeaway
Wellington Nap A-21 is classified as low hazard in Missouri. It was completed in 1966 and is 60 years old. Its primary use is other.
Physical Details
| Dam Height | 52 ft (taller than 95.7% in MO) |
| Dam Length | 520 ft |
| Dam Type | Earth |
| Max Storage | 485 acre-ft |
| Normal Storage | 343 acre-ft |
| Surface Area | 21 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 3,246 cfs |
| Year Completed | 1966 (60 years old) |
| NID ID | MO10144 |
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
LAFAYETTE SOIL & WATER
Local Government
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Low Hazard 30 ftFrequently Asked Questions
What is the hazard classification of Wellington Nap A-21?
Wellington Nap A-21 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 A-21?
Wellington Nap A-21 is owned by LAFAYETTE SOIL & WATER (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Wellington Nap A-21 built?
Wellington Nap A-21 was completed in 1966, making it 60 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 A-21?
Wellington Nap A-21 serves the following purposes: Other. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Wellington Nap A-21?
Wellington Nap A-21 has a dam height of 52 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 A-21 last inspected?
Wellington Nap A-21 was last inspected on October 26, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.