Dd No H-21
Key Takeaway
Dd No H-21 is classified as low hazard in Kansas. It was completed in 1985 and is 41 years old. Its primary use is flood risk reduction.
Physical Details
| Dam Height | 38 ft (taller than 90.5% in KS) |
| Dam Length | 610 ft |
| Dam Type | Earth |
| Max Storage | 498 acre-ft |
| Normal Storage | 132 acre-ft |
| Surface Area | 13 acres |
| Drainage Area | 1 sq mi |
| Year Completed | 1985 (41 years old) |
| NID ID | KS05380 |
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
POTTAWATOMIE CREEK WJD NO 90
Local Government
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Low Hazard 33 ftFrequently Asked Questions
What is the hazard classification of Dd No H-21?
Dd No H-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 Dd No H-21?
Dd No H-21 is owned by POTTAWATOMIE CREEK WJD NO 90 (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Dd No H-21 built?
Dd No H-21 was completed in 1985, making it 41 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 H-21?
Dd No H-21 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 Dd No H-21?
Dd No H-21 has a dam height of 38 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.