Lake Helen Dam
Key Takeaway
Lake Helen Dam is classified as high hazard in Nebraska. It was completed in 1891 and is 135 years old. Its primary use is recreation. 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 | 27 ft (taller than 55% in NE) |
| Dam Length | 1,520 ft |
| Dam Type | Earth |
| Max Storage | 566 acre-ft |
| Normal Storage | 138 acre-ft |
| Surface Area | 27 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 1,159 cfs |
| Year Completed | 1891 (135 years old) |
| NID ID | NE02393 |
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
City of Gothenburg
Local Government
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Low Hazard 60 ftFrequently Asked Questions
What is the hazard classification of Lake Helen Dam?
Lake Helen 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 Lake Helen Dam?
Lake Helen Dam is owned by City of Gothenburg (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Lake Helen Dam built?
Lake Helen Dam was completed in 1891, making it 135 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 Lake Helen Dam?
Lake Helen Dam serves the following purposes: Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Lake Helen Dam?
Lake Helen Dam has a dam height of 27 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 Lake Helen Dam last inspected?
Lake Helen Dam was last inspected on May 17, 2023. Inspection dates indicate when a formal review occurred, not the results of that inspection.