In Tennessee, retreating Confederates cut the vital rail link between Nashville and Chattanooga
The retreating Confederate Army burned the 110 foot high trestle bridge over Running Water Creek, near Whiteside in Marion County, cutting the Nashville to Chattanooga Railroad, a 115 mile line vital to Union supply lines. The 780 foot bridge was rebuilt during October and November 1863 at a cost of $59,000, one of the Union's great feats of engineering in the war. The N. & C. Railroad was repaired and running by January 1865. (By John Osborne)
Richard E. Prince, The Nashville, Chattanooga, and St. Louis Railway: History and Steam Locomotives (Bloomington, IN: Indiana University Press, 2001), 10.