Crown Mine Pond Dam
Key Takeaway
Crown Mine Pond Dam is classified as significant hazard in Illinois. It was completed in 1951 and is 75 years old. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 11 ft (taller than 8.1% in IL) |
| Dam Length | 2,036 ft |
| Dam Type | Earth |
| Max Storage | 97 acre-ft |
| Normal Storage | 55 acre-ft |
| Year Completed | 1951 (75 years old) |
| NID ID | IL00687 |
Safety Information
No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
CROWN COAL COMPANY
Private
Nearby Dams
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High Hazard 34 ftSpringfield Coal/Crown3/Fine Refuse Pond Extension
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Low Hazard 30 ftClarified Water Pond
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Significant Hazard 15 ftFine Refuse Pond
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Low Hazard 23 ftSpringfield Coal/Crown 3/Fine Refuse Ext 2 Dam
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High Hazard 27 ftSettling Pond
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Significant Hazard 28 ftFrequently Asked Questions
What is the hazard classification of Crown Mine Pond Dam?
Crown Mine Pond Dam is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Crown Mine Pond Dam?
Crown Mine Pond Dam is owned by CROWN COAL COMPANY (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Crown Mine Pond Dam built?
Crown Mine Pond Dam was completed in 1951, making it 75 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 Crown Mine Pond Dam?
Crown Mine Pond Dam serves the following purposes: Recreation, Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Crown Mine Pond Dam?
Crown Mine Pond Dam has a dam height of 11 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 Crown Mine Pond Dam last inspected?
Crown Mine Pond Dam was last inspected on June 9, 2015. Inspection dates indicate when a formal review occurred, not the results of that inspection.