Frd No 20
Key Takeaway
Frd No 20 is classified as low hazard in Kansas. It was completed in 1981 and is 45 years old. Its primary use is flood risk reduction.
Physical Details
| Dam Height | 24 ft (taller than 41.9% in KS) |
| Dam Length | 1,700 ft |
| Dam Type | Earth |
| Max Storage | 1.2K acre-ft |
| Normal Storage | 44 acre-ft |
| Surface Area | 19 acres |
| Drainage Area | 3 sq mi |
| Max Discharge | 950 cfs |
| Year Completed | 1981 (45 years old) |
| NID ID | KS05291 |
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
UPPER WALNUT WJD NO 33
Local Government
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Low Hazard 34 ftFrequently Asked Questions
What is the hazard classification of Frd No 20?
Frd No 20 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 Frd No 20?
Frd No 20 is owned by UPPER WALNUT WJD NO 33 (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Frd No 20 built?
Frd No 20 was completed in 1981, making it 45 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 Frd No 20?
Frd No 20 serves the following purposes: Flood Risk Reduction. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Frd No 20?
Frd No 20 has a dam height of 24 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.