Middle Big Nemaha 4
Key Takeaway
Middle Big Nemaha 4 is classified as low hazard in Nebraska. It was completed in 2003 and is 23 years old. Its primary use is flood risk reduction.
Physical Details
| Dam Height | 47 ft (taller than 95.3% in NE) |
| Dam Length | 1,398 ft |
| Dam Type | Earth |
| Max Storage | 1.3K acre-ft |
| Normal Storage | 103 acre-ft |
| Surface Area | 15 acres |
| Drainage Area | 4 sq mi |
| Max Discharge | 3,225 cfs |
| Year Completed | 2003 (23 years old) |
| NID ID | NE02663 |
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 Natural Resources District
Local Government
Nearby Dams
Middle Big Nemaha 18
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Significant Hazard 50 ftMiddle Big Nemaha 3
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Low Hazard 50 ftMeisinger Dam 1
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Low Hazard 28 ftBrinkman Dam
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Low Hazard 24 ftSemm Grade Stabilization Dam
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Low Hazard 27 ftLonnie Pooch Pond Dam
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Low Hazard 31 ftHeusman Dam
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Low Hazard 26 ftFrequently Asked Questions
What is the hazard classification of Middle Big Nemaha 4?
Middle Big Nemaha 4 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 Middle Big Nemaha 4?
Middle Big Nemaha 4 is owned by Nemaha Natural Resources District (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Middle Big Nemaha 4 built?
Middle Big Nemaha 4 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 Middle Big Nemaha 4?
Middle Big Nemaha 4 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 Middle Big Nemaha 4?
Middle Big Nemaha 4 has a dam height of 47 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 Middle Big Nemaha 4 last inspected?
Middle Big Nemaha 4 was last inspected on June 9, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.