Blanchester Reservoirs No. 1 & 2 Dam
Key Takeaway
Blanchester Reservoirs No. 1 & 2 Dam is classified as significant hazard in Ohio. It was completed in 1924 and is 102 years old. Its primary use is water supply. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 10 ft (taller than 2.3% in OH) |
| Dam Length | 2,585 ft |
| Dam Type | Earth |
| Max Storage | 68 acre-ft |
| Normal Storage | 46 acre-ft |
| Surface Area | 7 acres |
| Drainage Area | 0 sq mi |
| Year Completed | 1924 (102 years old) |
| NID ID | OH01397 |
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
Village of Blanchester
Local Government
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High Hazard 16 ftBlanchester Res No. 6 Dam
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High Hazard 24 ftHouston Upground Reservoir
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Significant Hazard 18 ftFrequently Asked Questions
What is the hazard classification of Blanchester Reservoirs No. 1 & 2 Dam?
Blanchester Reservoirs No. 1 & 2 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 Blanchester Reservoirs No. 1 & 2 Dam?
Blanchester Reservoirs No. 1 & 2 Dam is owned by Village of Blanchester (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Blanchester Reservoirs No. 1 & 2 Dam built?
Blanchester Reservoirs No. 1 & 2 Dam was completed in 1924, making it 102 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 Blanchester Reservoirs No. 1 & 2 Dam?
Blanchester Reservoirs No. 1 & 2 Dam 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 Blanchester Reservoirs No. 1 & 2 Dam?
Blanchester Reservoirs No. 1 & 2 Dam has a dam height of 10 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 Blanchester Reservoirs No. 1 & 2 Dam last inspected?
Blanchester Reservoirs No. 1 & 2 Dam was last inspected on April 25, 2019. Inspection dates indicate when a formal review occurred, not the results of that inspection.