Hillsboro Upground Reservoir
Key Takeaway
Hillsboro Upground Reservoir is classified as significant hazard in Ohio. It was completed in 1991 and is 35 years old. Its primary use is water supply. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 48 ft (taller than 90.2% in OH) |
| Dam Length | 4,100 ft |
| Dam Type | Earth |
| Max Storage | 593 acre-ft |
| Normal Storage | 491 acre-ft |
| Surface Area | 20 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 213 cfs |
| Year Completed | 1991 (35 years old) |
| NID ID | OH02789 |
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 Hillsboro
Local Government
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Significant Hazard 24 ftRocky Fork Lake Dam
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High Hazard 74 ftFrequently Asked Questions
What is the hazard classification of Hillsboro Upground Reservoir?
Hillsboro Upground Reservoir 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 Hillsboro Upground Reservoir?
Hillsboro Upground Reservoir is owned by City of Hillsboro (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Hillsboro Upground Reservoir built?
Hillsboro Upground Reservoir was completed in 1991, making it 35 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 Hillsboro Upground Reservoir?
Hillsboro Upground Reservoir serves the following purposes: Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Hillsboro Upground Reservoir?
Hillsboro Upground Reservoir has a dam height of 48 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 Hillsboro Upground Reservoir last inspected?
Hillsboro Upground Reservoir was last inspected on April 11, 2018. Inspection dates indicate when a formal review occurred, not the results of that inspection.