@SteveH posted:For bridges built in the early part of the 20th century in smaller towns and rural areas, it was prototypical for there to be little to no dedicated sidewalk. Usually there was light traffic so the cars would (hopefully) drive around the pedestrians, waving with all five fingers. Things have changed since then.
I'll disagree with that statement...but only to a small extent. This viaduct has a fairly wide sidewalk on the side farthest from the viewer and another coming down the off ramp (http://www.nortonva.gov/gallery.aspx?PID=30). It could have been added at a later time but my suspect is that it was there for the original school that was across the train tracks (now the high school).