Lake of The Dells

UNNAMED TRIB TO WISCONSIN R· Sauk, Wisconsin· Built 1938· Earth· 16 ft tall
Low Hazard Private

Key Takeaway

Lake of The Dells is classified as low hazard in Wisconsin. It was completed in 1938 and is 88 years old.

Physical Details

Dam Height 16 ft (taller than 48.8% in WI)
Dam TypeEarth
Max Storage74 acre-ft
Surface Area14 acres
Year Completed1938 (88 years old)
NID IDWI01224

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 5, 2021
State Regulated: Yes
Regulatory Agency: WIDNR

Ownership

DELLS BOAT CO., INC.

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Lake of The Dells?

Lake of The Dells 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 Lake of The Dells?

Lake of The Dells is owned by DELLS BOAT CO., INC. (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Lake of The Dells built?

Lake of The Dells was completed in 1938, making it 88 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.

How tall is Lake of The Dells?

Lake of The Dells has a dam height of 16 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 Lake of The Dells last inspected?

Lake of The Dells was last inspected on August 5, 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.