Small unsteady spoil banks/ levees can be built up to form a 'bowl' shape. Then with the help of dredges, soil can be pumped in and marsh grasses planted. Once the marsh grasses build up, levees will begin to collapse creating a new vegetated marsh area.
Worden is a village in Madison County, Illinois, United States.
Effingham is a city in Effingham County, Illinois, United States. The population was 12,384 at the 2000 census. It is the county seat of Effingham County. The city bills itself as The Crossroads of Opportunity because of its location at the intersection of two major Interstate highways: I-57 running from Chicago to Miner, Missouri, and I-70 running from Utah to Maryland.