Holland Lake Dam

TRIBUTARY TO MAD RIVER· Logan, Ohio· Earth· 34 ft tall
Significant Hazard Recreation Private

Key Takeaway

Holland 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 34 ft (taller than 71.7% in OH)
Dam Length500 ft
Dam TypeEarth
Max Storage112 acre-ft
Normal Storage22 acre-ft
Surface Area6 acres
Drainage Area0 sq mi
Max Discharge131 cfs
NID IDOH01948

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: No
Last Inspection: December 5, 2019
State Regulated: Yes
Regulatory Agency: Department of Natural Resources

Ownership

Multiple Owners - 0235-012

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Holland Lake Dam?

Holland 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 Holland Lake Dam?

Holland Lake Dam is owned by Multiple Owners - 0235-012 (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

What is the primary purpose of Holland Lake Dam?

Holland 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 Holland Lake Dam?

Holland Lake Dam has a dam height of 34 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 Holland Lake Dam last inspected?

Holland Lake Dam was last inspected on December 5, 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.