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 is privately owned by Unknown.
|Dam height||20 feet|
|Max storage||200 acre feet|
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.
Maximum storage is defined as the total storage space in a reservoir below the maximum attainable water surface elevation, including any surcharge storage.
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 ownerâs property.
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.
Inspections are every 5 years.
|Also known as||Wilsonville Lake|
|Distance to nearest town (miles)||0|
|NID ID (National ID)||IL50089|