515 to the Rescue - The night prior P099 broke down near Woodbridge, VA, so they decided to send 515 from the Auto Train terminal in Lorton. Since the P42 wouldn't magically be fixed overnight, 174 in the morning needed to get back to DC, so 515 hauled it.
Seen here is P174 passing the Crystal City VRE station.
With Northeast Regional trains, Auto Train and long distance service to Florida, New Orleans and Chicago, a lot of train riding and train watching can be had.
