Cedarburg Woolen Mill

Cedar Creek· Ozaukee, Wisconsin· Built 1864· Gravity· 18 ft tall
Significant Hazard Recreation Local Government

Key Takeaway

Cedarburg Woolen Mill is classified as significant hazard in Wisconsin. It was completed in 1864 and is 162 years old. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height 18 ft (taller than 55.3% in WI)
Dam Length130 ft
Dam TypeGravity
Max Storage50 acre-ft
Normal Storage20 acre-ft
Surface Area6 acres
Drainage Area119 sq mi
Max Discharge4,300 cfs
Year Completed1864 (162 years old)
NID IDWI00168

Safety Information

Significant Hazard

No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.

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

Emergency Action Plan: Yes
Last Inspection: June 22, 2018
State Regulated: Yes
Regulatory Agency: WIDNR

Ownership

City Of Cedarburg

Local Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Cedarburg Woolen Mill?

Cedarburg Woolen Mill is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Cedarburg Woolen Mill?

Cedarburg Woolen Mill is owned by City Of Cedarburg (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Cedarburg Woolen Mill built?

Cedarburg Woolen Mill was completed in 1864, making it 162 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 Cedarburg Woolen Mill?

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

How tall is Cedarburg Woolen Mill?

Cedarburg Woolen Mill has a dam height of 18 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 Cedarburg Woolen Mill last inspected?

Cedarburg Woolen Mill was last inspected on June 22, 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.