Newport Lake Dam

MILL CREEK· Mahoning, Ohio· Built 1928· Masonry· 28 ft tall
Significant Hazard Recreation Local Government

Key Takeaway

Newport Lake Dam is classified as significant hazard in Ohio. It was completed in 1928 and is 98 years old. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height 28 ft (taller than 54.7% in OH)
Dam Length200 ft
Dam TypeMasonry
Max Storage1.5K acre-ft
Normal Storage507 acre-ft
Surface Area76 acres
Drainage Area65 sq mi
Max Discharge9,119 cfs
Year Completed1928 (98 years old)
NID IDOH00415

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: October 13, 2021
State Regulated: Yes
Regulatory Agency: Department of Natural Resources

Ownership

Mill Creek Metropolitan Park Dist.

Local Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Newport Lake Dam?

Newport 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 Newport Lake Dam?

Newport Lake Dam is owned by Mill Creek Metropolitan Park Dist. (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Newport Lake Dam built?

Newport Lake Dam was completed in 1928, making it 98 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 Newport Lake Dam?

Newport 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 Newport Lake Dam?

Newport Lake Dam has a dam height of 28 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 Newport Lake Dam last inspected?

Newport Lake Dam was last inspected on October 13, 2021. 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.