Joplin traffic alert: St. Louis Avenue between 8th Street and Campbell Parkway Posted on June 3, 2014 by KOAM TV 7 Starting Monday, June 9, 2014, St. Louis Avenue will be closed between 8th Street and Campbell Parkway for a period of 2 weeks. The City of Joplin will be replacing an existing culvert that is located just south of the railroad tracks on St Louis.