One of the mightiest on the mighty Mississippi, barge operator American Commercial Lines (ACL) navigates the inland waterways of the US. ACL moves dry bulk commodities, including grain, cement, fertilizer, salt, coal, steel, and pig iron. It also transports bulk liquid cargo, such as chemicals, ethanol, and petroleum products. ACL's fleet comprises more than 2,300 dry cargo barges, and some 325 tank barges, powered by 100 towboats. In addition to transportation, its Jeffboat subsidiary designs and manufactures inland and ocean service vessels for ACL and other customers, and its Elliott Bay Design Group (EBDG) provides marine engineering. ACL was acquired by an affiliate of Platinum Equity in late 2010.