The Toledo Shipping Channel in the shallowest waters of the Great Lakes is the most dredged in the Great Lakes.
Click: Open Lake Dumping charts.
The Army Corps of Engineers currently dredges about 650,000 cubic yards of sediments of which almost all are open lake dumped in about 22′ of water. The sediments in Maumee River and Maumee Bay used to be designated as contaminated and in need of confined disposal. Since 2003, the Corps determined the sediments suitable for open lake disposal – the cheapest alternative. The Corps assessment does not include an assessment of the impacts of nutrient resuspension and algae growth caused by the sediments.