Clam Lake

CLAM· Burnett, Wisconsin· Built 1936· Gravity· 10 ft tall
Low Hazard Recreation Local Government

Key Takeaway

Clam Lake is classified as low hazard in Wisconsin. It was completed in 1936 and is 90 years old. Its primary use is recreation.

Physical Details

Dam Height 10 ft (taller than 17.3% in WI)
Dam Length110 ft
Dam TypeGravity
Max Storage9.6K acre-ft
Normal Storage3.6K acre-ft
Surface Area1,207 acres
Drainage Area325 sq mi
Max Discharge6,160 cfs
Year Completed1936 (90 years old)
NID IDWI00619

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: November 11, 2019
State Regulated: Yes
Regulatory Agency: WIDNR

Ownership

Burnett County

Local Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Clam Lake?

Clam Lake 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 Clam Lake?

Clam Lake is owned by Burnett County (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Clam Lake built?

Clam Lake was completed in 1936, making it 90 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 Clam Lake?

Clam Lake 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 Clam Lake?

Clam Lake has a dam height of 10 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 Clam Lake last inspected?

Clam Lake was last inspected on November 11, 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.