Round Lake Dam

TRIB SQUAW CREEK· Lake, Illinois· Built 1945· Earth· 9 ft tall
Significant Hazard Recreation Local Government

Key Takeaway

Round Lake Dam is classified as significant hazard in Illinois. It was completed in 1945 and is 81 years old. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height 9 ft (taller than 3.9% in IL)
Dam Length140 ft
Dam TypeEarth
Max Storage1.5K acre-ft
Normal Storage976 acre-ft
Surface Area242 acres
Drainage Area3 sq mi
Max Discharge187 cfs
Year Completed1945 (81 years old)
NID IDIL00593

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: No
Last Inspection: October 31, 2023
State Regulated: Yes
Regulatory Agency: IDNR

Ownership

VILLAGE OF ROUND LAKE BEACH

Local Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Round Lake Dam?

Round Lake Dam 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 Round Lake Dam?

Round Lake Dam is owned by VILLAGE OF ROUND LAKE BEACH (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Round Lake Dam built?

Round Lake Dam was completed in 1945, making it 81 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 Round Lake Dam?

Round Lake Dam 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 Round Lake Dam?

Round Lake Dam has a dam height of 9 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 Round Lake Dam last inspected?

Round Lake Dam was last inspected on October 31, 2023. 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.