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.
According to the 2010 census, Worden has a total area of 0.722 square miles (1.87 km2), of which 0.71 square miles (1.84 km2) (or 98.34%) is land and 0.012 square miles (0.03 km2) (or 1.66%) is water. As of the census of 2000, there were 905 people, 378 households, and 261 families residing in the village.