Park Mill

Menominee River· Marinette, Michigan· Built 1920· Concrete· 24 ft tall
Low Hazard Hydroelectric Private

Key Takeaway

Park Mill is classified as low hazard in Michigan. It was completed in 1920 and is 106 years old. Its primary use is hydroelectric.

Physical Details

Dam Height 24 ft (taller than 81.6% in MI)
Dam Length538 ft
Dam TypeConcrete
Max Storage3.8K acre-ft
Normal Storage3.8K acre-ft
Surface Area539 acres
Drainage Area4,060 sq mi
Max Discharge50,000 cfs
Year Completed1920 (106 years old)
NID IDMI00531

Safety Information

Low Hazard

No probable loss of human life and low economic/environmental losses expected.

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

Emergency Action Plan: No
Last Inspection: August 21, 2018
State Regulated: No

Ownership

NEW Hydro, Inc

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Park Mill?

Park Mill is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Park Mill?

Park Mill is owned by NEW Hydro, Inc (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Park Mill built?

Park Mill was completed in 1920, making it 106 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 Park Mill?

Park Mill serves the following purposes: Hydroelectric. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Park Mill?

Park Mill has a dam height of 24 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 Park Mill last inspected?

Park Mill was last inspected on August 21, 2018. 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.