Liberty Land/John Ross Plant/Sediment Pond Dams
Key Takeaway
Liberty Land/John Ross Plant/Sediment Pond Dams is classified as low hazard in Illinois. It was completed in 1988 and is 38 years old. Its primary use is other.
Physical Details
| Dam Height | 20 ft (taller than 28.2% in IL) |
| Dam Length | 1,850 ft |
| Dam Type | Earth |
| Max Storage | 363 acre-ft |
| Normal Storage | 136 acre-ft |
| Max Discharge | 24 cfs |
| Year Completed | 1988 (38 years old) |
| NID ID | IL50246 |
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
LCC ILLINOIS, LLC
Private
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Significant Hazard 14 ftFrequently Asked Questions
What is the hazard classification of Liberty Land/John Ross Plant/Sediment Pond Dams?
Liberty Land/John Ross Plant/Sediment Pond Dams 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 Liberty Land/John Ross Plant/Sediment Pond Dams?
Liberty Land/John Ross Plant/Sediment Pond Dams is owned by LCC ILLINOIS, LLC (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Liberty Land/John Ross Plant/Sediment Pond Dams built?
Liberty Land/John Ross Plant/Sediment Pond Dams was completed in 1988, making it 38 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 Liberty Land/John Ross Plant/Sediment Pond Dams?
Liberty Land/John Ross Plant/Sediment Pond Dams serves the following purposes: Other. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Liberty Land/John Ross Plant/Sediment Pond Dams?
Liberty Land/John Ross Plant/Sediment Pond Dams has a dam height of 20 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 Liberty Land/John Ross Plant/Sediment Pond Dams last inspected?
Liberty Land/John Ross Plant/Sediment Pond Dams was last inspected on March 9, 2023. Inspection dates indicate when a formal review occurred, not the results of that inspection.