Lake Coulterville Dam
Key Takeaway
Lake Coulterville Dam is classified as low hazard in Illinois. It was completed in 1917 and is 109 years old. Its primary use is recreation.
Physical Details
| Dam Height | 18 ft (taller than 24.2% in IL) |
| Dam Length | 460 ft |
| Dam Type | Earth |
| Max Storage | 181 acre-ft |
| Normal Storage | 109 acre-ft |
| Year Completed | 1917 (109 years old) |
| NID ID | IL00561 |
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
LINCOLN TRAIL BANK & TRUST COMPANY
Private
Nearby Dams
Coulterville City Reservoir Dam
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High Hazard 41 ftCoulterville Coal/Gateway Mine/Slurry Cell 2 Dam
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Significant Hazard 35 ftCoulterville Coal/Gateway Mine/Slurry Cell 1 Dam
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Low Hazard 33 ftCoulterville Coal/Gateway Mine/Slurry Cell 4 Dam
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Low Hazard 34 ftFoerich Pond Dam
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Low Hazard 21 ftZeigler Coal Company Lake
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Low Hazard 66 ftFrequently Asked Questions
What is the hazard classification of Lake Coulterville Dam?
Lake Coulterville 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 Lake Coulterville Dam?
Lake Coulterville Dam is owned by LINCOLN TRAIL BANK & TRUST COMPANY (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Lake Coulterville Dam built?
Lake Coulterville Dam was completed in 1917, making it 109 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 Lake Coulterville Dam?
Lake Coulterville Dam serves the following purposes: Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Lake Coulterville Dam?
Lake Coulterville Dam has a dam height of 18 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 Lake Coulterville Dam last inspected?
Lake Coulterville Dam was last inspected on May 22, 2017. Inspection dates indicate when a formal review occurred, not the results of that inspection.