Prairie State Energy Raw Water Dam
Key Takeaway
Prairie State Energy Raw Water Dam is classified as high hazard in Illinois. It was completed in 2010 and is 16 years old. Its primary use is water supply. 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 | 40 ft (taller than 83.1% in IL) |
| Dam Length | 6,900 ft |
| Dam Type | Earth |
| Max Storage | 2.4K acre-ft |
| Normal Storage | 1.9K acre-ft |
| Surface Area | 0 acres |
| Drainage Area | 0 sq mi |
| Year Completed | 2010 (16 years old) |
| NID ID | IL50539 |
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
PRAIRIE STATE GENERATING COMPANY
Public Utility
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Low Hazard 34 ftFrequently Asked Questions
What is the hazard classification of Prairie State Energy Raw Water Dam?
Prairie State Energy Raw Water 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 Prairie State Energy Raw Water Dam?
Prairie State Energy Raw Water Dam is owned by PRAIRIE STATE GENERATING COMPANY (Public Utility). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Prairie State Energy Raw Water Dam built?
Prairie State Energy Raw Water Dam was completed in 2010, making it 16 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 Prairie State Energy Raw Water Dam?
Prairie State Energy Raw Water Dam serves the following purposes: Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Prairie State Energy Raw Water Dam?
Prairie State Energy Raw Water Dam has a dam height of 40 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 State Energy Raw Water Dam last inspected?
Prairie State Energy Raw Water Dam was last inspected on June 23, 2023. Inspection dates indicate when a formal review occurred, not the results of that inspection.