Stack train 24Z pulls thru 6/5 track in Harrisburg Yard to set off Harrisburg cars for unloading.. Once done they'll continue onto Croxton NJ.. The yard was expanded adding 2 more pad tracks for an additional 5K feet of capacity for the growing NS intermodal business. The above rear used to be Conrail's Lucknow Rail Welding facility which was removed to make room for the additional tracks..