The people of South Sioux City, Nebraska are preparing for flooding. The U.S. Corps of Engineers estimates about half of the city of 12,000 people will be underwater by June 14 as the Missouri River rises another eight feet to peak flows, with the flood expected to last about 60 days. People in the area yesterday were packing and moving items while others made and placed sandbags along the Missouri River. Nebraska Indian College has a campus in South Sioux City.