As the summer rain eases, the 117 year old Mikado SR 4501 leads TVRM 100 Missionary Ridge Local across the South Chickamauge Creek on heading the 2:30 Schedule train west for East Chattanooga. The Truss bridge in the foreground is the CSX Tyner Branch which is part of the Western & Atlantic Sub. The Tyner Branch which service most of the industries in the Bonny Oak Industrial park, and also run to the former Volunteer Ammunition grounds which is now Enterprise South Industrial Park. SR 4501 is the second steam locomotive that is taken part in the Tennessee Valley Railroad Museum 8th Annual Railfest. Once the train has turn around and make the short trek back to Grand Jct. SR 630 which is watching at the display will cone out on the main, and couple up to the bottom of the train while SR 4501 will uncouple, and turn around and get set up at the display Yard when the 4pm local returns.