Long Lake Dam

TUSCARAWAS RIVER· Summit, Ohio· Built 1936· Concrete· 12 ft tall
Significant Hazard Recreation Water Supply State Government

Key Takeaway

Long Lake Dam is classified as significant hazard in Ohio. It was completed in 1936 and is 90 years old. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height 12 ft (taller than 4.8% in OH)
Dam Length104 ft
Dam TypeConcrete
Max Storage1.7K acre-ft
Normal Storage423 acre-ft
Surface Area180 acres
Drainage Area61 sq mi
Year Completed1936 (90 years old)
NID IDOH00586

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: May 29, 2019
State Regulated: Yes
Regulatory Agency: Department of Natural Resources

Ownership

ODNR, Division of Parks & Watercraft

State Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Long Lake Dam?

Long 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 Long Lake Dam?

Long Lake Dam is owned by ODNR, Division of Parks & Watercraft (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Long Lake Dam built?

Long Lake 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 Long Lake Dam?

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

How tall is Long Lake Dam?

Long Lake Dam has a dam height of 12 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 Long Lake Dam last inspected?

Long Lake Dam was last inspected on May 29, 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.