This 2-track span was built between 1904 and 1906 and islocated between Perryville
and Harve de Grace, Maryland. In the real world this can be opened but due to 140
or more trains a day is kept bolted in the closed position and can only be opened
after giving notice at least 24 hours in advance. It takes about one hour to unbolt,
open, allow marine traffic to pass, close, and re-bolt. Overall length 4155 ft.
The real bridge was electrified and while I have not included catenary (by request)
there are supports for the catenary poles on the ends of the deck trusses.