Middle Big Nemaha 46
Key Takeaway
Middle Big Nemaha 46 is classified as low hazard in Nebraska. It was completed in 1995 and is 31 years old. Its primary use is flood risk reduction.
Physical Details
| Dam Height | 48 ft (taller than 95.6% in NE) |
| Dam Length | 1,122 ft |
| Dam Type | Earth |
| Max Storage | 3.2K acre-ft |
| Normal Storage | 292 acre-ft |
| Surface Area | 52 acres |
| Drainage Area | 10 sq mi |
| Max Discharge | 5,832 cfs |
| Year Completed | 1995 (31 years old) |
| NID ID | NE02470 |
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
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Low Hazard 34 ftKlaus Hartmann Dam
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Low Hazard 21 ftRothell Dam
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Low Hazard 19 ft2008 Hartmann Dam
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Low Hazard 25 ftMiddle Big Nemaha 12
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Significant Hazard 43 ftLittle Dam 3322
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Low Hazard 25 ftMiddle Big Nemaha 88
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Significant Hazard 46 ftFrequently Asked Questions
What is the hazard classification of Middle Big Nemaha 46?
Middle Big Nemaha 46 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 46?
Middle Big Nemaha 46 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 46 built?
Middle Big Nemaha 46 was completed in 1995, making it 31 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 46?
Middle Big Nemaha 46 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 46?
Middle Big Nemaha 46 has a dam height of 48 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 46 last inspected?
Middle Big Nemaha 46 was last inspected on June 9, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.