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.
For other places named Effingham, see Effingham (disambiguation). Effingham is a city in and the county seat of Effingham County, Illinois, United States. The population was 12,604 at the 2015 census estimate.