Longley Dam
Key Takeaway
Longley Dam is classified as low hazard in Nebraska. It was completed in 1946 and is 80 years old. Its primary use is other.
Physical Details
| Dam Height | 11 ft (taller than 2.1% in NE) |
| Dam Length | 180 ft |
| Dam Type | Earth |
| Max Storage | 66 acre-ft |
| Normal Storage | 19 acre-ft |
| Surface Area | 6 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 1,245 cfs |
| Year Completed | 1946 (80 years old) |
| NID ID | NE01424 |
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
Brandon L Nuttelman et al
Private
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Low Hazard 27 ftFrequently Asked Questions
What is the hazard classification of Longley Dam?
Longley Dam 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 Longley Dam?
Longley Dam is owned by Brandon L Nuttelman et al (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Longley Dam built?
Longley Dam was completed in 1946, making it 80 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 Longley Dam?
Longley Dam serves the following purposes: Other, Flood Risk Reduction. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Longley Dam?
Longley Dam has a dam height of 11 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 Longley Dam last inspected?
Longley Dam was last inspected on April 27, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.