Kaskaskia Island Wildlife Area Lake Dam

Kaskaskia Island Wildlife Area Lake Dam is an earth dam located in St. Clair County, Illinois, built in 1990. It carries a Low hazard potential classification.

About Kaskaskia Island Wildlife Area Lake Dam

The primary purpose of Kaskaskia Island Wildlife Area Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Illinois Department Of Natural Resources (local government). It impounds the Trib Kaskaskia River near Kaskaskia.

The dam stands 24 feet tall and stretches 1,050 feet across, and has a maximum storage capacity of 5,600 acre-feet. Completed in 1990, the structure is 36 years old.

This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. The most recent inspection on record was 07/30/2024.

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Low HazardNot Available ConditionEmergency Action Plan: No

Location

StateIllinois
CountySt. Clair
Nearest CityKaskaskia
River/StreamTrib Kaskaskia River
Coordinates38.33664, -89.86152

Physical Characteristics

Dam TypeEarth
NID Height24 ft
Dam Height24 ft
Dam Length1,050 ft
Year Completed1990 (36 years old)

Storage & Hydraulics

NID Storage5,600 acre-ft
Max Storage5,600 acre-ft
Normal Storage1,800 acre-ft
Spillway TypeUncontrolled

Ownership & Safety

PurposeRecreation
OwnerILLINOIS DEPARTMENT OF NATURAL RESOURCES
Owner TypeLocal Government
Hazard ClassificationLow
Condition AssessmentNot Available
Last Inspection07/30/2024
Emergency Action PlanNo

Identifiers

NID IDIL50317
Federal IDIL50317
More InfoState Dam Safety Program

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