International Coal/Viper/North Slurry Impoundment Dam
Key Takeaway
International Coal/Viper/North Slurry Impoundment Dam is classified as high hazard in Illinois. Its primary use is other. 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 | 105 ft (taller than 99.3% in IL) |
| Dam Length | 14,400 ft |
| Dam Type | Earth |
| Max Storage | 4.4K acre-ft |
| Normal Storage | 0 acre-ft |
| NID ID | IL50711 |
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
ICG ILLINOIS, LLC
Private
Nearby Dams
Frequently Asked Questions
What is the hazard classification of International Coal/Viper/North Slurry Impoundment Dam?
International Coal/Viper/North Slurry Impoundment 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 International Coal/Viper/North Slurry Impoundment Dam?
International Coal/Viper/North Slurry Impoundment Dam is owned by ICG ILLINOIS, LLC (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
What is the primary purpose of International Coal/Viper/North Slurry Impoundment Dam?
International Coal/Viper/North Slurry Impoundment Dam 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 International Coal/Viper/North Slurry Impoundment Dam?
International Coal/Viper/North Slurry Impoundment Dam has a dam height of 105 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 International Coal/Viper/North Slurry Impoundment Dam last inspected?
International Coal/Viper/North Slurry Impoundment Dam was last inspected on October 10, 2023. Inspection dates indicate when a formal review occurred, not the results of that inspection.