Charles Mill Dam

BLACK FORK OF MOHICAN RIVER· Ashland, Ohio· Built 1936· Earth·

High Hazard Flood Risk Reduction Fish And Wildlife Pond Recreation Federal Government

Key Takeaway

Charles Mill Dam is classified as high hazard in Ohio. It was completed in 1936 and is 90 years old. Its primary use is flood risk reduction. 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 Length	1,390 ft
Dam Type	Earth
Max Storage	88.0K acre-ft
Normal Storage	7.4K acre-ft

Surface Area	1,350 acres
Drainage Area	215 sq mi
Max Discharge	23,500 cfs
Year Completed	1936 (90 years old)
NID ID	OH00020

Safety Information

High Hazard

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?

Emergency Action Plan: Yes

Last Inspection: July 29, 2022

State Regulated: No

Ownership

USACE - Huntington District

Federal Government

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Goettl Lake Dam

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Bash Lake Dam

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Artesian Lake Dam

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Pleasant Valley Ranch Lake Dam

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Grogg Lake Dam

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Jacobs Lake Dam

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Pleasant Hill Dam

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High Hazard

Frequently Asked Questions

What is the hazard classification of Charles Mill Dam?

Charles Mill 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 Charles Mill Dam?

Charles Mill Dam is owned by USACE - Huntington District (Federal Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Charles Mill Dam built?

Charles Mill Dam was completed in 1936, making it 90 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 Charles Mill Dam?

Charles Mill Dam serves the following purposes: Flood Risk Reduction, Fish And Wildlife Pond, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

When was Charles Mill Dam last inspected?

Charles Mill Dam was last inspected on July 29, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.

Data from the National Inventory of Dams (NID) maintained by the US Army Corps of Engineers. Dam conditions may have changed since the last update. This site is not affiliated with USACE. Do not use for emergency planning — contact your local dam safety program.