Julian Griggs Dam
Key Takeaway
Julian Griggs Dam is classified as high hazard in Ohio. It was completed in 1905 and is 121 years old. Its primary use is water supply. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.
Physical Details
| Dam Height | 52 ft (taller than 92.8% in OH) |
| Dam Length | 983 ft |
| Dam Type | Concrete |
| Max Storage | 16.4K acre-ft |
| Normal Storage | 4.3K acre-ft |
| Surface Area | 385 acres |
| Drainage Area | 1,002 sq mi |
| Max Discharge | 136,562 cfs |
| Year Completed | 1905 (121 years old) |
| NID ID | OH00740 |
Safety Information
Loss of human life is likely if the dam fails.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
City of Columbus
Local Government
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High Hazard 75 ftFrequently Asked Questions
What is the hazard classification of Julian Griggs Dam?
Julian Griggs Dam is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Julian Griggs Dam?
Julian Griggs Dam is owned by City of Columbus (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Julian Griggs Dam built?
Julian Griggs Dam was completed in 1905, making it 121 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 Julian Griggs Dam?
Julian Griggs Dam serves the following purposes: Water Supply, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Julian Griggs Dam?
Julian Griggs Dam has a dam height of 52 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 Julian Griggs Dam last inspected?
Julian Griggs Dam was last inspected on June 14, 2018. Inspection dates indicate when a formal review occurred, not the results of that inspection.