Hawthorne Hills Lake Dam
Key Takeaway
Hawthorne Hills Lake Dam is classified as significant hazard in Illinois. It was completed in 1969 and is 57 years old. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 18 ft (taller than 24.2% in IL) |
| Dam Length | 483 ft |
| Dam Type | Earth |
| Max Storage | 266 acre-ft |
| Normal Storage | 126 acre-ft |
| Year Completed | 1969 (57 years old) |
| NID ID | IL00174 |
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
HAWTHORNE HILLS ASSOCIATION
Private
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What is the hazard classification of Hawthorne Hills Lake Dam?
Hawthorne Hills 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 Hawthorne Hills Lake Dam?
Hawthorne Hills Lake Dam is owned by HAWTHORNE HILLS ASSOCIATION (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Hawthorne Hills Lake Dam built?
Hawthorne Hills Lake Dam was completed in 1969, making it 57 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 Hawthorne Hills Lake Dam?
Hawthorne Hills Lake 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 Hawthorne Hills Lake Dam?
Hawthorne Hills Lake Dam has a dam height of 18 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 Hawthorne Hills Lake Dam last inspected?
Hawthorne Hills Lake Dam was last inspected on June 26, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.