Whiting Mill Dam

Wisconsin River· Portage, Wisconsin· Built 1925· Gravity· 24 ft tall
Low Hazard Hydroelectric Water Supply Public Utility

Key Takeaway

Whiting Mill Dam is classified as low hazard in Wisconsin. It was completed in 1925 and is 101 years old. Its primary use is hydroelectric.

Physical Details

Dam Height 24 ft (taller than 69.1% in WI)
Dam Length1,761 ft
Dam TypeGravity
Max Storage1.2K acre-ft
Normal Storage1.1K acre-ft
Surface Area240 acres
Drainage Area4,964 sq mi
Max Discharge106,500 cfs
Year Completed1925 (101 years old)
NID IDWI00783

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: June 25, 2021
State Regulated: No

Ownership

Consolidated Water Power Company

Public Utility

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Whiting Mill Dam?

Whiting Mill Dam 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 Whiting Mill Dam?

Whiting Mill Dam is owned by Consolidated Water Power Company (Public Utility). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Whiting Mill Dam built?

Whiting Mill Dam was completed in 1925, making it 101 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 Whiting Mill Dam?

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

How tall is Whiting Mill Dam?

Whiting Mill Dam 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 Whiting Mill Dam last inspected?

Whiting Mill Dam was last inspected on June 25, 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.