This bridge is part of the Phoenix Iron Company complex. It is now part of a hike and bike trail. The bridge was a dual gauge rail bridge , Stander and 24" narrow gauge.
Leonard F. Shaner, Jr.
Chester County Historian
I could be mistaken, but I don't think that this bridge is completely abandoned--the photo shows wood railings that are of the type used on bridges converted for pedestrians, and it looks like the bridge may be open to pedestrians and perhaps bicycles...