Nick, the leftmost thru girder was built here in 1973 and the remaining truss was relocated here the same year. The middle thru girder was built in 2003 replacing the original truss (Which was alleged to have been reused https://www.progressiverailroading.com/mow/news/UP-relocates... , but I've found no proof of such a relocation).
Not understanding this...visited today - west bridge replaced then by thru plate girder? How old is other bridge?
Cool thanks Luke, impressive monsters these are