Lawrence Lake Dam
Key Takeaway
Lawrence Lake Dam is classified as high hazard in Illinois. It was completed in 1943 and is 83 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 | 24 ft (taller than 40.5% in IL) |
| Dam Length | 164 ft |
| Dam Type | Earth |
| Max Storage | 132 acre-ft |
| Normal Storage | 49 acre-ft |
| Surface Area | 10 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 758 cfs |
| Year Completed | 1943 (83 years old) |
| NID ID | IL50067 |
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
TERRY THIES
Private
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High Hazard 14 ftFrequently Asked Questions
What is the hazard classification of Lawrence Lake Dam?
Lawrence 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 Lawrence Lake Dam?
Lawrence Lake Dam is owned by TERRY THIES (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Lawrence Lake Dam built?
Lawrence Lake Dam was completed in 1943, making it 83 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 Lawrence Lake Dam?
Lawrence 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 Lawrence Lake Dam?
Lawrence Lake Dam has a dam height of 24 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 Lawrence Lake Dam last inspected?
Lawrence Lake Dam was last inspected on June 1, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.