Oak-Middle 81-A
Key Takeaway
Oak-Middle 81-A is classified as low hazard in Nebraska. It was completed in 1959 and is 67 years old. Its primary use is flood risk reduction.
Physical Details
| Dam Height | 50 ft (taller than 96.4% in NE) |
| Dam Length | 1,326 ft |
| Dam Type | Earth |
| Max Storage | 551 acre-ft |
| Normal Storage | 133 acre-ft |
| Surface Area | 17 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 618 cfs |
| Year Completed | 1959 (67 years old) |
| NID ID | NE00066 |
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
Lower Platte South Natural Resources District
Local Government
Nearby Dams
Oak-Middle 79-A
Seward, NE
Low Hazard 43 ftGarland Northwest Dam
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Low Hazard 27 ftOak-Middle 76-A
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Low Hazard 41 ftHudkins Road Dam
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Low Hazard 38 ftRolfsmeier Dam
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Low Hazard 20 ftCipriano Road Dam
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Low Hazard 28 ftOak-Middle 82-B
Seward, NE
High Hazard 35 ftOak-Middle 87-A
Seward, NE
Low Hazard 33 ftFrequently Asked Questions
What is the hazard classification of Oak-Middle 81-A?
Oak-Middle 81-A 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 Oak-Middle 81-A?
Oak-Middle 81-A is owned by Lower Platte South Natural Resources District (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Oak-Middle 81-A built?
Oak-Middle 81-A was completed in 1959, making it 67 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 Oak-Middle 81-A?
Oak-Middle 81-A 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 Oak-Middle 81-A?
Oak-Middle 81-A 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 Oak-Middle 81-A last inspected?
Oak-Middle 81-A was last inspected on April 22, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.