Piedmont Dam

STILLWATER CREEK· Harrison, Ohio· Built 1937· Earth·

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

Key Takeaway

Piedmont 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	1,750 ft
Dam Type	Earth
Max Storage	66.7K acre-ft
Normal Storage	34.5K acre-ft

Surface Area	2,312 acres
Drainage Area	86 sq mi
Max Discharge	15,200 cfs
Year Completed	1937 (89 years old)
NID ID	OH00011

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: April 19, 2019

State Regulated: No

Ownership

USACE - Huntington District

Federal Government

Nearby Dams

Clendening Dam

Harrison, OH

High Hazard

Hidden Haven Lake Dam

Guernsey, OH

Significant Hazard 44 ft

Hills of Eden Lake Dam

Harrison, OH

Low Hazard 16 ft

Zion Lake Dam

Harrison, OH

Low Hazard 37 ft

Bilinovich Lake Dam

Guernsey, OH

Significant Hazard 57 ft

Ohio River Collieries Sediment Pond Dam

Guernsey, OH

Low Hazard 26 ft

Red Hill Farm Dam No. 1

Guernsey, OH

Significant Hazard 48 ft

Red Hill Farm Dam No. 2

Guernsey, OH

Low Hazard 27 ft

Frequently Asked Questions

What is the hazard classification of Piedmont Dam?

Piedmont 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 Piedmont Dam?

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

When was Piedmont Dam built?

Piedmont 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 Piedmont Dam?

Piedmont 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 Piedmont Dam last inspected?

Piedmont Dam was last inspected on April 19, 2019. 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.