Prairie Coal/Lost Prairie Mine/Sediment Pond 1
Key Takeaway
Prairie Coal/Lost Prairie Mine/Sediment Pond 1 is classified as low hazard in Illinois. Its primary use is other.
Physical Details
| Dam Height | 28 ft (taller than 54.6% in IL) |
| Dam Length | 400 ft |
| Dam Type | Earth |
| Max Storage | 400 acre-ft |
| Normal Storage | 189 acre-ft |
| Surface Area | 40 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 673 cfs |
| NID ID | IL50606 |
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
PRAIRIE COAL COMPANY, LLC
Private
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Significant Hazard 77 ftFrequently Asked Questions
What is the hazard classification of Prairie Coal/Lost Prairie Mine/Sediment Pond 1?
Prairie Coal/Lost Prairie Mine/Sediment Pond 1 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 Prairie Coal/Lost Prairie Mine/Sediment Pond 1?
Prairie Coal/Lost Prairie Mine/Sediment Pond 1 is owned by PRAIRIE COAL COMPANY, LLC (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
What is the primary purpose of Prairie Coal/Lost Prairie Mine/Sediment Pond 1?
Prairie Coal/Lost Prairie Mine/Sediment Pond 1 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 Prairie Coal/Lost Prairie Mine/Sediment Pond 1?
Prairie Coal/Lost Prairie Mine/Sediment Pond 1 has a dam height of 28 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 Prairie Coal/Lost Prairie Mine/Sediment Pond 1 last inspected?
Prairie Coal/Lost Prairie Mine/Sediment Pond 1 was last inspected on July 13, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.