Koban Lake Dam
Key Takeaway
Koban Lake Dam is classified as significant hazard in Arkansas. It was completed in 1961 and is 65 years old. Its primary use is water supply. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 29 ft (taller than 56.5% in AR) |
| Dam Length | 360 ft |
| Dam Type | Earth |
| Max Storage | 223 acre-ft |
| Normal Storage | 156 acre-ft |
| Surface Area | 13 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 587 cfs |
| Year Completed | 1961 (65 years old) |
| NID ID | AR00126 |
Safety Information
No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
KOBAN FAMILY, LLC
Private
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High Hazard 13 ftFrequently Asked Questions
What is the hazard classification of Koban Lake Dam?
Koban Lake Dam is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Koban Lake Dam?
Koban Lake Dam is owned by KOBAN FAMILY, LLC (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Koban Lake Dam built?
Koban Lake Dam was completed in 1961, making it 65 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 Koban Lake Dam?
Koban Lake Dam serves the following purposes: Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Koban Lake Dam?
Koban Lake Dam has a dam height of 29 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 Koban Lake Dam last inspected?
Koban Lake Dam was last inspected on January 29, 2016. Inspection dates indicate when a formal review occurred, not the results of that inspection.