Conservation Club 100 Lake Dam

Conservation Club 100 Lake Dam is an earth dam located in Marion County, Illinois, built in 1953. It carries a Significant hazard potential classification.

About Conservation Club 100 Lake Dam

The primary purpose of Conservation Club 100 Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Conservation Club 100 (private). It impounds the Trib North Fork near Patoka-offstream.

The dam stands 30 feet tall and stretches 400 feet across, and has a maximum storage capacity of 391 acre-feet. Completed in 1953, the structure is well into its service life at over 50 years old.

This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. The most recent inspection on record was 05/05/2021.

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Significant HazardNot Available ConditionEmergency Action Plan: No

Location

StateIllinois
CountyMarion
Nearest CityPatoka-offstream
River/StreamTrib North Fork
Coordinates38.78228, -88.98966

Physical Characteristics

Dam TypeEarth
NID Height30 ft
Dam Height30 ft
Dam Length400 ft
Year Completed1953 (73 years old)

Storage & Hydraulics

NID Storage391 acre-ft
Max Storage391 acre-ft
Normal Storage279 acre-ft
Spillway TypeUncontrolled

Ownership & Safety

PurposeRecreation
OwnerCONSERVATION CLUB 100
Owner TypePrivate
Hazard ClassificationSignificant
Condition AssessmentNot Available
Last Inspection05/05/2021
Emergency Action PlanNo

Identifiers

NID IDIL00463
Federal IDIL00463
More InfoState Dam Safety Program

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