Lake Hillcrest Dam
Key Takeaway
Lake Hillcrest Dam is classified as significant hazard in Illinois. It was completed in 1956 and is 70 years old. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 40 ft (taller than 83.1% in IL) |
| Dam Length | 425 ft |
| Dam Type | Earth |
| Max Storage | 355 acre-ft |
| Normal Storage | 189 acre-ft |
| Surface Area | 14 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 346 cfs |
| Year Completed | 1956 (70 years old) |
| NID ID | IL00192 |
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
LAKE HILLCREST CORPORATION
Private
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High Hazard 31 ftFrequently Asked Questions
What is the hazard classification of Lake Hillcrest Dam?
Lake Hillcrest 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 Lake Hillcrest Dam?
Lake Hillcrest Dam is owned by LAKE HILLCREST CORPORATION (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Lake Hillcrest Dam built?
Lake Hillcrest Dam was completed in 1956, making it 70 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 Hillcrest Dam?
Lake Hillcrest 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 Hillcrest Dam?
Lake Hillcrest Dam has a dam height of 40 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 Hillcrest Dam last inspected?
Lake Hillcrest Dam was last inspected on July 24, 2019. Inspection dates indicate when a formal review occurred, not the results of that inspection.