Dd No 3-1b
Key Takeaway
Dd No 3-1b is classified as significant hazard in Kansas. It was completed in 1974 and is 52 years old. Its primary use is flood risk reduction. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 42 ft (taller than 94.1% in KS) |
| Dam Length | 1,610 ft |
| Dam Type | Earth |
| Max Storage | 1.5K acre-ft |
| Normal Storage | 70 acre-ft |
| Surface Area | 14 acres |
| Drainage Area | 7 sq mi |
| Max Discharge | 5,275 cfs |
| Year Completed | 1974 (52 years old) |
| NID ID | KS04937 |
Safety Information
No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
PAWNEE WJD NO 81
Local Government
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Low Hazard 40 ftFrequently Asked Questions
What is the hazard classification of Dd No 3-1b?
Dd No 3-1b is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Dd No 3-1b?
Dd No 3-1b is owned by PAWNEE WJD NO 81 (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Dd No 3-1b built?
Dd No 3-1b was completed in 1974, making it 52 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 3-1b?
Dd No 3-1b 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 3-1b?
Dd No 3-1b has a dam height of 42 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 Dd No 3-1b last inspected?
Dd No 3-1b was last inspected on April 19, 2023. Inspection dates indicate when a formal review occurred, not the results of that inspection.