4th Avenue Storm Detention Dam
Key Takeaway
4th Avenue Storm Detention Dam is classified as high hazard in Nebraska. It was completed in 1989 and is 37 years old. Its primary use is flood risk reduction. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.
Physical Details
| Dam Height | 19 ft (taller than 24.6% in NE) |
| Dam Length | 535 ft |
| Dam Type | Earth |
| Max Storage | 93 acre-ft |
| Normal Storage | 1 acre-ft |
| Surface Area | 2 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 549 cfs |
| Year Completed | 1989 (37 years old) |
| Year Modified | 2006 |
| NID ID | NE02332 |
Safety Information
Loss of human life is likely if the dam fails.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
Johnson Imperial Home Company
Private
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Low Hazard 26 ftFrequently Asked Questions
What is the hazard classification of 4th Avenue Storm Detention Dam?
4th Avenue Storm Detention Dam is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates 4th Avenue Storm Detention Dam?
4th Avenue Storm Detention Dam is owned by Johnson Imperial Home Company (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was 4th Avenue Storm Detention Dam built?
4th Avenue Storm Detention Dam was completed in 1989, making it 37 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 4th Avenue Storm Detention Dam?
4th Avenue Storm 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 4th Avenue Storm Detention Dam?
4th Avenue Storm Detention Dam has a dam height of 19 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 4th Avenue Storm Detention Dam last inspected?
4th Avenue Storm Detention Dam was last inspected on May 9, 2023. Inspection dates indicate when a formal review occurred, not the results of that inspection.