Lake Kakusha Dam

MENDOTA CREEK· LaSalle, Illinois· Built 1981· Earth· 29 ft tall
High Hazard Flood Risk Reduction Local Government

Key Takeaway

Lake Kakusha Dam is classified as high hazard in Illinois. It was completed in 1981 and is 45 years old. Its primary use is flood risk reduction. 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 29 ft (taller than 58.2% in IL)
Dam Length2,150 ft
Dam TypeEarth
Max Storage1.8K acre-ft
Normal Storage280 acre-ft
Max Discharge7,909 cfs
Year Completed1981 (45 years old)
NID IDIL50035

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: June 1, 2020
State Regulated: Yes
Regulatory Agency: IDNR

Ownership

CITY OF MENDOTA

Local Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Lake Kakusha Dam?

Lake Kakusha Dam 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 Lake Kakusha Dam?

Lake Kakusha Dam is owned by CITY OF MENDOTA (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Lake Kakusha Dam built?

Lake Kakusha Dam was completed in 1981, making it 45 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 Lake Kakusha Dam?

Lake Kakusha Dam serves the following purposes: Flood Risk Reduction. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Lake Kakusha Dam?

Lake Kakusha Dam has a dam height of 29 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 Kakusha Dam last inspected?

Lake Kakusha Dam was last inspected on June 1, 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.