Lake Hamilton Dam
Key Takeaway
Lake Hamilton Dam is classified as high hazard in Ohio. It was completed in 1905 and is 121 years old. Its primary use is recreation. 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 | 70 ft (taller than 97.5% in OH) |
| Dam Length | 480 ft |
| Dam Type | Concrete |
| Max Storage | 3.3K acre-ft |
| Normal Storage | 2.1K acre-ft |
| Surface Area | 104 acres |
| Drainage Area | 32 sq mi |
| Max Discharge | 15,584 cfs |
| Year Completed | 1905 (121 years old) |
| NID ID | OH00629 |
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
Aqua Ohio, Inc.
Public Utility
Nearby Dams
Burgess Lake Dam
Mahoning, OH
Significant Hazard 27 ftMike Lake Dam
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Significant Hazard 11 ftEvans Lake Dam
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High Hazard 49 ftMckelvey Lake Dam
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High Hazard 73 ftKing'S Lake Dam
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Low Hazard 14 ftNewport Lake Dam
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Significant Hazard 28 ftLake Cohasset Dam
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Significant Hazard 25 ftLake Glacier Dam
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Low Hazard 24 ftFrequently Asked Questions
What is the hazard classification of Lake Hamilton Dam?
Lake Hamilton 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 Lake Hamilton Dam?
Lake Hamilton Dam is owned by Aqua Ohio, Inc. (Public Utility). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Lake Hamilton Dam built?
Lake Hamilton 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 Lake Hamilton Dam?
Lake Hamilton 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 Lake Hamilton Dam?
Lake Hamilton Dam has a dam height of 70 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 Hamilton Dam last inspected?
Lake Hamilton Dam was last inspected on December 14, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.