The Piedmont & Northern railway or P&N, now CSX, was an interurban railway operating two disconnected lines in South Carolina and North Carolina and was chartered by James Duke of the Duke Power Company. The South Carolina railway line ran from Greenwood to Greenville, Taylors, Greer, and on to Spartanburg. The railway was electrified with 1500 volts DC, until 1954 when the conversion to diesel locomotives was completed and the electrification abandoned. The Enoree viaduct, built in 1913 , has been remarkably accident free except for that one derailment on February 9, 1919. A northbound train passing over the viaduct derailed at its highest point killing 4 passengers and injuring 1 employee and 23 passengers. An investigation into the accident [ direct link ] concluded poor track conditions and a tie-bar set too low caused the derailment. An electrical substation used to be located downhill from the top of the Enoree viaduct supplying power for the Chick Springs segment