Peshtigo

Peshtigo River· Marinette, Wisconsin· Built 1907· Gravity· 19 ft tall
Low Hazard Hydroelectric Recreation Public Utility

Key Takeaway

Peshtigo is classified as low hazard in Wisconsin. It was completed in 1907 and is 119 years old. Its primary use is hydroelectric.

Physical Details

Dam Height 19 ft (taller than 58% in WI)
Dam Length358 ft
Dam TypeGravity
Max Storage2.0K acre-ft
Normal Storage1.0K acre-ft
Surface Area460 acres
Drainage Area1,086 sq mi
Max Discharge11,500 cfs
Year Completed1907 (119 years old)
NID IDWI00756

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 2, 2017
State Regulated: No

Ownership

Wisconsin Public Service Corporation

Public Utility

Nearby Dams

Potato Rapids

Marinette, WI

Low Hazard 19 ft

Third Marinette

Marinette, WI

High Hazard 28 ft

Park Mill

Marinette, MI

Low Hazard 24 ft

Menominee

Menominee, WI

Low Hazard 24 ft

Lower Menominee River Dam

Menominee, MI

High Hazard 29 ft

Frequently Asked Questions

What is the hazard classification of Peshtigo?

Peshtigo 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 Peshtigo?

Peshtigo is owned by Wisconsin Public Service Corporation (Public Utility). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Peshtigo built?

Peshtigo was completed in 1907, making it 119 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 Peshtigo?

Peshtigo 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 Peshtigo?

Peshtigo has a dam height of 19 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 Peshtigo last inspected?

Peshtigo was last inspected on August 2, 2017. 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.