BAY CITY, Wis. – A $27 million muti-agency project to use river sand from the Mississippi River navigation channel and backwaters to improve wildlife habitat will begin this summer. The Army Corps of Engineers, one of the sponsors, said a ground-breaking ceremony will be Tuesday: Time: 10:30 a.m. at Saratoga Park in Bay City. The Corps said the project is the first of its kind for habit improvement. Features include building peninsulas, dredging, and shoreline protection at the head of Lake Pepin. The contractor: LS Marine, of Inver Grove Heights, Minnesota.