Rlf/Pawnee Mine/Slurry Impoundment 3 Dam
Key Takeaway
Rlf/Pawnee Mine/Slurry Impoundment 3 Dam is classified as low hazard in Illinois. It was completed in 1999 and is 27 years old. Its primary use is debris control.
Physical Details
| Dam Height | 20 ft (taller than 28.2% in IL) |
| Dam Length | 3,600 ft |
| Dam Type | Earth |
| Max Storage | 214 acre-ft |
| Normal Storage | 171 acre-ft |
| Surface Area | 12 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 9 cfs |
| Year Completed | 1999 (27 years old) |
| NID ID | IL50416 |
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
RLE PAWNEE PROPERTIES, LLC
Private
Nearby Dams
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Significant Hazard 11 ftFrequently Asked Questions
What is the hazard classification of Rlf/Pawnee Mine/Slurry Impoundment 3 Dam?
Rlf/Pawnee Mine/Slurry Impoundment 3 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 Rlf/Pawnee Mine/Slurry Impoundment 3 Dam?
Rlf/Pawnee Mine/Slurry Impoundment 3 Dam is owned by RLE PAWNEE PROPERTIES, LLC (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Rlf/Pawnee Mine/Slurry Impoundment 3 Dam built?
Rlf/Pawnee Mine/Slurry Impoundment 3 Dam was completed in 1999, making it 27 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 Rlf/Pawnee Mine/Slurry Impoundment 3 Dam?
Rlf/Pawnee Mine/Slurry Impoundment 3 Dam serves the following purposes: Debris Control, Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Rlf/Pawnee Mine/Slurry Impoundment 3 Dam?
Rlf/Pawnee Mine/Slurry Impoundment 3 Dam 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 Rlf/Pawnee Mine/Slurry Impoundment 3 Dam last inspected?
Rlf/Pawnee Mine/Slurry Impoundment 3 Dam was last inspected on September 13, 2023. Inspection dates indicate when a formal review occurred, not the results of that inspection.