Pine Lake Dam
Key Takeaway
Pine Lake Dam is classified as high hazard in Illinois. It was completed in 1940 and is 86 years old. Its primary use is recreation. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.
Physical Details
| Dam Height | 14 ft (taller than 14.5% in IL) |
| Dam Length | 320 ft |
| Dam Type | Earth |
| Max Storage | 17 acre-ft |
| Normal Storage | 24 acre-ft |
| Surface Area | 5 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 49 cfs |
| Year Completed | 1940 (86 years old) |
| Year Modified | 1996 |
| NID ID | IL50046 |
Safety Information
Loss of human life is likely if the dam fails.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
PINE LAKE ESTATES WETLANDS ASSOCIATION
Private
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Low Hazard 35 ftFrequently Asked Questions
What is the hazard classification of Pine Lake Dam?
Pine Lake Dam is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Pine Lake Dam?
Pine Lake Dam is owned by PINE LAKE ESTATES WETLANDS ASSOCIATION (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Pine Lake Dam built?
Pine Lake Dam was completed in 1940, making it 86 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 Pine Lake Dam?
Pine 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 Pine Lake Dam?
Pine Lake Dam has a dam height of 14 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 Pine Lake Dam last inspected?
Pine Lake Dam was last inspected on October 8, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.