Lake Henry Dam
Key Takeaway
Lake Henry Dam is classified as low hazard in Illinois. It was completed in 1963 and is 63 years old. Its primary use is recreation.
Physical Details
| Dam Height | 13 ft (taller than 12.5% in IL) |
| Dam Length | 290 ft |
| Dam Type | Earth |
| Max Storage | 78 acre-ft |
| Normal Storage | 50 acre-ft |
| Year Completed | 1963 (63 years old) |
| NID ID | IL00094 |
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
JACKSON COUNTRY CLUB
Private
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Significant Hazard 20 ftFrequently Asked Questions
What is the hazard classification of Lake Henry Dam?
Lake Henry 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 Lake Henry Dam?
Lake Henry Dam is owned by JACKSON COUNTRY CLUB (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Lake Henry Dam built?
Lake Henry Dam was completed in 1963, making it 63 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 Henry Dam?
Lake Henry 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 Henry Dam?
Lake Henry Dam has a dam height of 13 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 Henry Dam last inspected?
Lake Henry Dam was last inspected on July 12, 2017. Inspection dates indicate when a formal review occurred, not the results of that inspection.