Workman Lake Dam

TRIBUTARY TO KOKOSING RIVER· Knox, Ohio· Earth· 30 ft tall
Significant Hazard Recreation Private

Key Takeaway

Workman Lake Dam is classified as significant hazard in Ohio. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height 30 ft (taller than 61.5% in OH)
Dam Length420 ft
Dam TypeEarth
Max Storage90 acre-ft
Normal Storage41 acre-ft
Surface Area6 acres
Drainage Area0 sq mi
Max Discharge309 cfs
NID IDOH01866

Safety Information

Significant Hazard

No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.

Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?

Emergency Action Plan: Yes
Last Inspection: November 25, 2019
State Regulated: Yes
Regulatory Agency: Department of Natural Resources

Ownership

Carol A. Gros

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Workman Lake Dam?

Workman Lake Dam is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Workman Lake Dam?

Workman Lake Dam is owned by Carol A. Gros (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

What is the primary purpose of Workman Lake Dam?

Workman Lake Dam serves the following purposes: Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Workman Lake Dam?

Workman Lake Dam has a dam height of 30 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 Workman Lake Dam last inspected?

Workman Lake Dam was last inspected on November 25, 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.