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.
Illinois. 1  Bond County IL: Greenville, Sorento. 2  Calhoun County IL: Hardin. 3  Clinton County IL: Carlyle, Centralia, Germantown, New Baden. 4  Jersey County IL: Grafton, Jerseyville. 5  Macoupin County IL: Bunker Hill, Carlinville, Gillespie, Staunton, Virden (partial)