Aowa Creek 31-20a
Key Takeaway
Aowa Creek 31-20a is classified as significant hazard in Nebraska. It was completed in 2003 and is 23 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 | 51 ft (taller than 96.8% in NE) |
| Dam Length | 1,495 ft |
| Dam Type | Earth |
| Max Storage | 4.4K acre-ft |
| Normal Storage | 942 acre-ft |
| Surface Area | 108 acres |
| Drainage Area | 12 sq mi |
| Max Discharge | 10,667 cfs |
| Year Completed | 2003 (23 years old) |
| NID ID | NE02668 |
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
Lewis & Clark Natural Resources District
Local Government
Nearby Dams
Aowa Creek 31-1
Dixon, NE
Low Hazard 38 ftAowa Creek 31-5
Dixon, NE
Low Hazard 44 ftAowa Creek 23-2
Dixon, NE
Low Hazard 31 ftAowa Creek 31-6
Dixon, NE
Low Hazard 34 ftAowa Creek 23-5
Dixon, NE
Low Hazard 29 ftAowa Creek 42-2
Dixon, NE
Low Hazard 31 ftAowa Creek 31-8
Dixon, NE
Low Hazard 42 ftAowa Creek 12-8
Dixon, NE
Low Hazard 41 ftFrequently Asked Questions
What is the hazard classification of Aowa Creek 31-20a?
Aowa Creek 31-20a 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 Aowa Creek 31-20a?
Aowa Creek 31-20a is owned by Lewis & Clark Natural Resources District (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Aowa Creek 31-20a built?
Aowa Creek 31-20a was completed in 2003, making it 23 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 Aowa Creek 31-20a?
Aowa Creek 31-20a 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 Aowa Creek 31-20a?
Aowa Creek 31-20a has a dam height of 51 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 Aowa Creek 31-20a last inspected?
Aowa Creek 31-20a was last inspected on April 11, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.