Dd No 4-3 (Mapes)
Key Takeaway
Dd No 4-3 (Mapes) is classified as low hazard in Kansas. It was completed in 1987 and is 39 years old. Its primary use is flood risk reduction.
Physical Details
| Dam Height | 27 ft (taller than 57.6% in KS) |
| Dam Length | 610 ft |
| Dam Type | Earth |
| Max Storage | 110 acre-ft |
| Normal Storage | 30 acre-ft |
| Surface Area | 5 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 816 cfs |
| Year Completed | 1987 (39 years old) |
| NID ID | KS07252 |
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
NEMAHA-BROWN WJD NO 7
Local Government
Nearby Dams
Gs Dd No 4-4a (Beam)
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High Hazard 25 ftDam KS03126
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Low Hazard 26 ftGs Dd No 4-14b
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Low Hazard 26 ftFrequently Asked Questions
What is the hazard classification of Dd No 4-3 (Mapes)?
Dd No 4-3 (Mapes) 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 4-3 (Mapes)?
Dd No 4-3 (Mapes) is owned by NEMAHA-BROWN WJD NO 7 (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Dd No 4-3 (Mapes) built?
Dd No 4-3 (Mapes) was completed in 1987, making it 39 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 4-3 (Mapes)?
Dd No 4-3 (Mapes) 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 4-3 (Mapes)?
Dd No 4-3 (Mapes) has a dam height of 27 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.