Five Channels

Au Sable River· Iosco, Michigan· Built 1912· Gravity· 40 ft tall
High Hazard Hydroelectric Recreation Public Utility

Key Takeaway

Five Channels is classified as high hazard in Michigan. It was completed in 1912 and is 114 years old. Its primary use is hydroelectric. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.

Physical Details

Dam Height 40 ft (taller than 94.6% in MI)
Dam Length800 ft
Dam TypeGravity
Max Storage3.4K acre-ft
Drainage Area1,613 sq mi
Max Discharge24,000 cfs
Year Completed1912 (114 years old)
NID IDMI00168

Safety Information

High Hazard

Loss of human life is likely if the dam fails.

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

Emergency Action Plan: Yes
Last Inspection: September 14, 2022
State Regulated: No

Ownership

Consumers Energy Company

Public Utility

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Five Channels?

Five Channels is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Five Channels?

Five Channels is owned by Consumers Energy Company (Public Utility). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Five Channels built?

Five Channels was completed in 1912, making it 114 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 Five Channels?

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

How tall is Five Channels?

Five Channels has a dam height of 40 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 Five Channels last inspected?

Five Channels was last inspected on September 14, 2022. 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.