Harrell Lake South Dam
Key Takeaway
Harrell Lake South Dam is classified as low hazard in Illinois. It was completed in 1965 and is 61 years old. Its primary use is recreation.
Physical Details
| Dam Height | 24 ft (taller than 40.5% in IL) |
| Dam Length | 500 ft |
| Dam Type | Earth |
| Max Storage | 275 acre-ft |
| Normal Storage | 154 acre-ft |
| Year Completed | 1965 (61 years old) |
| NID ID | IL01173 |
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
LAWRENCE HARRELL
Private
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Low Hazard 32 ftFrequently Asked Questions
What is the hazard classification of Harrell Lake South Dam?
Harrell Lake South 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 Harrell Lake South Dam?
Harrell Lake South Dam is owned by LAWRENCE HARRELL (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Harrell Lake South Dam built?
Harrell Lake South Dam was completed in 1965, making it 61 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 Harrell Lake South Dam?
Harrell Lake South 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 Harrell Lake South Dam?
Harrell Lake South 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 Harrell Lake South Dam last inspected?
Harrell Lake South Dam was last inspected on June 25, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.