| Markets Served | 
Ohio RiverMonongahela RiverAllegheny River
 
 
Lower Mississippi RiverUpper Mississippi RiverOhio RiverMonongahela RiverAllegheny RiverIllinois RiverMissouri RiverAtchafalaya RiverTennessee RiverTennessee-Tombigbee WaterwayBlack Warrior RiverArkansas RiverRed RiverOuachita RiverCumberland RiverIntracoastal Waterways from Brownsville, Texas to St. Marks, FloridaGreat Lakes from Calumet, Illinois to Burns Harbor, Indiana |