Reuters: Mississippi River barge traffic remained congested on Friday near Vicksburg, Mississippi, where a barge accident and oil spill shuttered the major shipping artery on Sunday, but the backlog of boats was slowly declining.
The U.S. Coast Guard reopened the river on Wednesday to one-way traffic through a 16-mile safety zone from river mile marker 425 to 441, where the backlog of barges had ballooned to more than 1,000.
The backup thinned to 519 barges by midday Friday, including 11 northbound...