Southwestern Illinois Flood Prevention Council
The U.S. Army Corps of Engineers (USACE) is currently designing the subject project two cutoffwalls in the Wood River Levee District. The location of the project is shown in figure 1. The project consists of a shallow cutoff wall extending into a clay layer of approximately 1800 n. in length, and a deep cutoff extending into bedrock of approximately 1900 n. in length, along with a number of associated relief wells and appurtenances.