ESSEXVILLE, Mich. – The U.S. Coast Guard is issuing a warning to winter all-terrain vehicle enthusiasts to stay well clear of the Liberty Bridge in Bay City, Mich. on the Saginaw River. Due to construction with tugs and barges operating on the river, formation of ice normally present in the winter will be inhibited. This poses a serious hazard to individuals operating snowmobiles and other ATVs...