 In 2009 , CSX began the construction of a $ 175 million intermodal facility in North Baltimore , employing OCR technology from the Saudi Arabia @-@ based Gulf <unk> Contracting Company . As part of their " National Gateway " project , it is a rival to Norfolk Southern 's " Heartland Corridor " project . Norfolk Southern operates a large intermodal facility in Columbus as part of their " Heartland Corridor , " which the company recently constructed . 
