Greenville New City Dam
Key Takeaway
Greenville New City Dam is classified as significant hazard in Illinois. It was completed in 1969 and is 57 years old. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 40 ft (taller than 83.1% in IL) |
| Dam Length | 1,200 ft |
| Dam Type | Earth |
| Max Storage | 22.4K acre-ft |
| Normal Storage | 9.9K acre-ft |
| Surface Area | 900 acres |
| Drainage Area | 35 sq mi |
| Max Discharge | 15,568 cfs |
| Year Completed | 1969 (57 years old) |
| NID ID | IL00594 |
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
CITY OF GREENVILLE
Local Government
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Significant Hazard 70 ftFrequently Asked Questions
What is the hazard classification of Greenville New City Dam?
Greenville New City 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 Greenville New City Dam?
Greenville New City Dam is owned by CITY OF GREENVILLE (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Greenville New City Dam built?
Greenville New City Dam was completed in 1969, making it 57 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 Greenville New City Dam?
Greenville New City 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 Greenville New City Dam?
Greenville New City 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 Greenville New City Dam last inspected?
Greenville New City Dam was last inspected on June 17, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.