Mohawk Dam

WALHONDING RIVER· Coshocton, Ohio· Built 1937· Rockfill·

High Hazard Flood Risk Reduction Federal Government

Key Takeaway

Mohawk Dam is classified as high hazard in Ohio. It was completed in 1937 and is 89 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	2,330 ft
Dam Type	Rockfill
Max Storage	285.0K acre-ft
Normal Storage	0 acre-ft

Surface Area	0 acres
Drainage Area	1,504 sq mi
Max Discharge	151,000 cfs
Year Completed	1937 (89 years old)
NID ID	OH00016

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: September 4, 2020

State Regulated: No

Ownership

USACE - Huntington District

Federal Government

Nearby Dams

Broken Aro Sediment Pond No. 46 Dam

Coshocton, OH

Low Hazard 30 ft

Workman Lake Dam

Knox, OH

Significant Hazard 30 ft

Six-Mile Dam

Coshocton, OH

High Hazard 28 ft

Broken Aro Sediment Pond No. 47 Dam

Coshocton, OH

Low Hazard 40 ft

Neutralized Water Impoundment 3

Knox, OH

Significant Hazard 20 ft

Millwood Plant Dam

Knox, OH

Significant Hazard 14 ft

Neutralized Water Impoundment 2

Knox, OH

Significant Hazard 22 ft

Sunset Lake Dam

Coshocton, OH

High Hazard 27 ft

Frequently Asked Questions

What is the hazard classification of Mohawk Dam?

Mohawk 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 Mohawk Dam?

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

When was Mohawk Dam built?

Mohawk Dam was completed in 1937, making it 89 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 Mohawk Dam?

Mohawk Dam serves the following purposes: Flood Risk Reduction. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

When was Mohawk Dam last inspected?

Mohawk Dam was last inspected on September 4, 2020. 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.