Article Photos: Mississippi rock blasting puts river in ship shape 3/4

FILE - In this Monday, Jan. 7, 2013 file photo, Boats from Newt Marine in Dubuque, Iowa, work to remove rock pinnacles from the the waterway in order to deepen it on the Mississippi River just outside of Thebes, Ill. Crews have completed the most critical phase of removing bedrock that threatened barges along a crucial stretch of the drought-starved Mississippi River, staving off the shipping industry's fears that the treacherous channel could close to traffic, the U.S. Army Corps of Engineers said Saturday, Jan. 12, 2013. (AP Photo/The Southern Illinoisan, Paul Newton, File)