Hemlock Falls

Michigamme River· Iron, Michigan· Built 1953· Concrete· 34 ft tall
Low Hazard Hydroelectric Recreation Public Utility

Key Takeaway

Hemlock Falls is classified as low hazard in Michigan. It was completed in 1953 and is 73 years old. Its primary use is hydroelectric.

Physical Details

Dam Height 34 ft (taller than 92.4% in MI)
Dam Length409 ft
Dam TypeConcrete
Normal Storage410 acre-ft
Surface Area75 acres
Drainage Area665 sq mi
Max Discharge16,000 cfs
Year Completed1953 (73 years old)
NID IDMI00172

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: Yes
Last Inspection: June 20, 2019
State Regulated: No

Ownership

Wisconsin Electric Power Company

Public Utility

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Hemlock Falls?

Hemlock Falls 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 Hemlock Falls?

Hemlock Falls is owned by Wisconsin Electric Power Company (Public Utility). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Hemlock Falls built?

Hemlock Falls was completed in 1953, making it 73 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 Hemlock Falls?

Hemlock Falls 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 Hemlock Falls?

Hemlock Falls 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 Hemlock Falls last inspected?

Hemlock Falls was last inspected on June 20, 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.