Kaskaskia Island Wildlife Area Lake Dam

TRIB KASKASKIA RIVER· St. Clair, Illinois· Built 1990· Earth· 24 ft tall
Low Hazard Recreation Local Government

Key Takeaway

Kaskaskia Island Wildlife Area Lake Dam is classified as low hazard in Illinois. It was completed in 1990 and is 36 years old. Its primary use is recreation.

Physical Details

Dam Height 24 ft (taller than 40.5% in IL)
Dam Length1,050 ft
Dam TypeEarth
Max Storage5.6K acre-ft
Normal Storage1.8K acre-ft
Year Completed1990 (36 years old)
NID IDIL50317

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: September 19, 2022
State Regulated: Yes
Regulatory Agency: IDNR

Ownership

ILLINOIS DEPARTMENT OF NATURAL RESOURCES

Local Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Kaskaskia Island Wildlife Area Lake Dam?

Kaskaskia Island Wildlife Area Lake Dam 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 Kaskaskia Island Wildlife Area Lake Dam?

Kaskaskia Island Wildlife Area Lake Dam is owned by ILLINOIS DEPARTMENT OF NATURAL RESOURCES (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Kaskaskia Island Wildlife Area Lake Dam built?

Kaskaskia Island Wildlife Area Lake Dam was completed in 1990, making it 36 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 Kaskaskia Island Wildlife Area Lake Dam?

Kaskaskia Island Wildlife Area 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 Kaskaskia Island Wildlife Area Lake Dam?

Kaskaskia Island Wildlife Area Lake Dam 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 Kaskaskia Island Wildlife Area Lake Dam last inspected?

Kaskaskia Island Wildlife Area Lake Dam was last inspected on September 19, 2022. 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.