Google street view of that RR bridge links to this photo showing an interesting pentagonal portal bracing.
If you look south of 190 there's a railroad bridge that's not listed on this site.
The build date for the older westbound span is inaccurate. I do not know exactly when it was built, but it is at least as old as 1960. You see, my Aunt died in a car accident on that bridge in 1960, so there is a mix up somewhere.