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.
Worden, IL Profile: Facts, Map & Data. Worden, Illinois - Basic Facts. The Village of Worden had a population of 1,048 as of July 1, 2016. The primary coordinate point for Worden is located at latitude 38.9311 and longitude -89.8402 in Madison County. The formal boundaries for the Village of Worden (see map below) encompass a land area of 0.71 sq. miles and a water area of 0.01 sq. miles. Madison County is in the Central time zone (GMT -6).