Drummond Mill Pond

LONG LAKE BRANCH WHITE· Bayfield, Wisconsin· Built 1889· Earth· 24 ft tall
High Hazard Recreation State Government

Key Takeaway

Drummond Mill Pond is classified as high hazard in Wisconsin. It was completed in 1889 and is 137 years old. Its primary use is recreation. 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 24 ft (taller than 69.1% in WI)
Dam Length130 ft
Dam TypeEarth
Max Storage450 acre-ft
Normal Storage200 acre-ft
Surface Area62 acres
Drainage Area45 sq mi
Max Discharge780 cfs
Year Completed1889 (137 years old)
NID IDWI00064

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: October 5, 2020
State Regulated: Yes
Regulatory Agency: WIDNR

Ownership

Wisconsin Department of Transportation

State Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Drummond Mill Pond?

Drummond Mill Pond 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 Drummond Mill Pond?

Drummond Mill Pond is owned by Wisconsin Department of Transportation (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Drummond Mill Pond built?

Drummond Mill Pond was completed in 1889, making it 137 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 Drummond Mill Pond?

Drummond Mill Pond 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 Drummond Mill Pond?

Drummond Mill Pond 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 Drummond Mill Pond last inspected?

Drummond Mill Pond was last inspected on October 5, 2020. 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.