Iola
Key Takeaway
Iola is classified as significant hazard in Wisconsin. It was completed in 1865 and is 161 years old. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 12 ft (taller than 30.4% in WI) |
| Dam Length | 694 ft |
| Dam Type | Gravity |
| Max Storage | 1.0K acre-ft |
| Normal Storage | 638 acre-ft |
| Surface Area | 206 acres |
| Drainage Area | 100 sq mi |
| Max Discharge | 810 cfs |
| Year Completed | 1865 (161 years old) |
| NID ID | WI00337 |
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
Village Of Iola
Local Government
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Iola?
Iola 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 Iola?
Iola is owned by Village Of Iola (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Iola built?
Iola was completed in 1865, making it 161 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 Iola?
Iola 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 Iola?
Iola has a dam height of 12 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 Iola last inspected?
Iola was last inspected on September 16, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.