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Superior 4 Dam
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Superior 4 Dam Share
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Overview Share
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Wilsonville, Illinois
Privately owned
Built in 1950

Superior 4 Dam is an earth dam built on the West Fork Cahokia Creek River and is located in Wilsonville, Illinois. It was built in 1950 .

The dam is privately owned by Unknown. It is also known as Wilsonville Lake.

Superior 4 Dam
Wilsonville, Illinois, U.S.
Dam type
Dam type
Foundation type
Core type
Ownership Share
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Superior 4 Dam is privately owned by Unknown.

Construction Share
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Dam designer
West Fork Cahokia Creek River
River built on
Superior 4 Dam was built in 1950.
Metrics Share
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Dam height 20 feet
Max storage 200 acre feet
20 feet
Dam height

Height of the dam is defined as the vertical distance between the lowest point on the crest of the dam and the lowest point in the original streambed.

200 acre feet
Max storage

Maximum storage is defined as the total storage space in a reservoir below the maximum attainable water surface elevation, including any surcharge storage.

Safety Share
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Downstream potential hazard

Dams assigned the low hazard potential classification are those where failure or misoperation results in no probable loss of human life and low economic and/or environ-mental losses. Losses are principally limited to the owner’s property.

No emergency action plan
Emergency action plan

An emergency action plan is defined as a plan of action to be taken to reduce the potential for property damage and loss of life in an area affected by a dam failure or large flood.

Most recent inspection date

Inspections are every 5 years.

About Share
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Also known as Wilsonville Lake
Distance to nearest town (miles) 0
Latitude 39
Longitude -89
NID ID (National ID) IL50089

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