Ohio Attorney General Mike DeWine, Ohio Environmental Protection Agency Director Craig W. Butler and Ohio Department of Natural Resources Director James Zehringer today announced that the state has filed a lawsuit against the U.S. Army Corps of Engineers for its plan to place dredge material from Cleveland Harbor, which includes six miles of the Cuyahoga River, in Lake Erie or not dredge the entire navigation channel unless a non-federal partner pays to place it in confined disposal facilities.