NS 107 (Chattanooga,TN-Sheffield,AL) is slowly cutting through the NS controlled 23rd St. Interlock (MP-338.2/ 243.1 A) on the Chattanooga Terminal/AGS North-End. The Sheffield bound general freight is getting ready to meet inbound NS 738 which is approaching on the main 2 track. The freight will run to Wauhatchie, and get on the CSX Chattanooga Sub for Stevenson, AL where the train will get on the NS Memphis East-End for Sheffield, AL