The 154-foot towboat Stephen L. Colby is dewatered during the lift phase of salvage operations in LeClaire, Iowa, Dec. 9, 2013. Crews have worked continuously to repair and refloat the vessel since it reportedly struck an unknown submerged object in the Mississippi River channel and sank Nov. 25. (U.S. Coast Guard photo by Petty Officer 1st Class Mariana O'Leary)
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