International Coal/Viper/Freshwater Impoundment
Key Takeaway
International Coal/Viper/Freshwater Impoundment is classified as low hazard in Illinois. It was completed in 1982 and is 44 years old. Its primary use is other.
Physical Details
| Dam Height | 12 ft (taller than 10% in IL) |
| Dam Length | 3,800 ft |
| Dam Type | Earth |
| Max Storage | 250 acre-ft |
| Normal Storage | 177 acre-ft |
| Max Discharge | 208 cfs |
| Year Completed | 1982 (44 years old) |
| NID ID | IL50019 |
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
INTERNATIONAL COAL GROUP, INC.
Private
Nearby Dams
International Coal/Viper/Slurry Impoundment
Logan, IL
High Hazard 109 ftInternational Coal/Viper/North Slurry Impoundment Dam
Logan, IL
High Hazard 105 ftWilliamsville Lake Dam 1
Sangamon, IL
Low Hazard 23 ftMcmann Lake Dam
Menard, IL
Low Hazard 19 ftWeingardt Pond Dam
Sangamon, IL
Low Hazard 25 ftBrandon Kimbro Dam
Sangamon, IL
High HazardFrequently Asked Questions
What is the hazard classification of International Coal/Viper/Freshwater Impoundment?
International Coal/Viper/Freshwater Impoundment 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 International Coal/Viper/Freshwater Impoundment?
International Coal/Viper/Freshwater Impoundment is owned by INTERNATIONAL COAL GROUP, INC. (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was International Coal/Viper/Freshwater Impoundment built?
International Coal/Viper/Freshwater Impoundment was completed in 1982, making it 44 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 International Coal/Viper/Freshwater Impoundment?
International Coal/Viper/Freshwater Impoundment 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/Freshwater Impoundment?
International Coal/Viper/Freshwater Impoundment has a dam height of 12 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/Freshwater Impoundment last inspected?
International Coal/Viper/Freshwater Impoundment was last inspected on August 27, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.