Nelson Detention Dam
Key Takeaway
Nelson Detention Dam is classified as significant hazard in Nebraska. It was completed in 1957 and is 69 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 | 50 ft (taller than 96.4% in NE) |
| Dam Length | 282 ft |
| Dam Type | Earth |
| Max Storage | 111 acre-ft |
| Normal Storage | 44 acre-ft |
| Surface Area | 4 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 645 cfs |
| Year Completed | 1957 (69 years old) |
| NID ID | NE00460 |
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
Mary Lou Chapek Rev Trust
Private
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Low Hazard 35 ftFrequently Asked Questions
What is the hazard classification of Nelson Detention Dam?
Nelson Detention Dam 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 Nelson Detention Dam?
Nelson Detention Dam is owned by Mary Lou Chapek Rev Trust (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Nelson Detention Dam built?
Nelson Detention Dam was completed in 1957, making it 69 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 Nelson Detention Dam?
Nelson Detention Dam 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 Nelson Detention Dam?
Nelson Detention Dam has a dam height of 50 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 Nelson Detention Dam last inspected?
Nelson Detention Dam was last inspected on April 14, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.