Dd No. 143
Key Takeaway
Dd No. 143 is classified as low hazard in Kansas. It was completed in 1998 and is 28 years old. Its primary use is flood risk reduction.
Physical Details
| Dam Height | 21 ft (taller than 31.3% in KS) |
| Dam Length | 1,000 ft |
| Dam Type | Earth |
| Max Storage | 221 acre-ft |
| Normal Storage | 30 acre-ft |
| Surface Area | 9 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 768 cfs |
| Year Completed | 1998 (28 years old) |
| NID ID | KS07851 |
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
MIDDLE WALNUT WJD NO 60
Local Government
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What is the hazard classification of Dd No. 143?
Dd No. 143 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 Dd No. 143?
Dd No. 143 is owned by MIDDLE WALNUT WJD NO 60 (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Dd No. 143 built?
Dd No. 143 was completed in 1998, making it 28 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 Dd No. 143?
Dd No. 143 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 Dd No. 143?
Dd No. 143 has a dam height of 21 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.