Lake Kegonsa
Key Takeaway
Lake Kegonsa is classified as low hazard in Wisconsin. It was completed in 1938 and is 88 years old. Its primary use is navigation.
Physical Details
| Dam Height | 10 ft (taller than 17.3% in WI) |
| Dam Length | 100 ft |
| Dam Type | Gravity |
| Max Storage | 16.3K acre-ft |
| Normal Storage | 2.7K acre-ft |
| Surface Area | 2,716 acres |
| Drainage Area | 410 sq mi |
| Max Discharge | 3,790 cfs |
| Year Completed | 1938 (88 years old) |
| NID ID | WI01072 |
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
Dane County
Local Government
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Lake Kegonsa?
Lake Kegonsa 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 Lake Kegonsa?
Lake Kegonsa is owned by Dane County (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Lake Kegonsa built?
Lake Kegonsa was completed in 1938, making it 88 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 Kegonsa?
Lake Kegonsa serves the following purposes: Navigation, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Lake Kegonsa?
Lake Kegonsa has a dam height of 10 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 Kegonsa last inspected?
Lake Kegonsa was last inspected on October 31, 2012. Inspection dates indicate when a formal review occurred, not the results of that inspection.