I have driven past this beast on the PA turnpike. It's massive. I was glad you'd panned along its side. A fellow fan has bagged a couple neat shots here: David Blazejewski photos. https://flic.kr/p/2jAfDFJ https://flic.kr/p/2jAJtzm
reminds me of the bridge over the Hudson outside Albany NY - don't remember the name but is the stretch that runs perpendicular to I-87 and 90. There's a cantilever for traffic then a huuuge railroad truss beside it. Both feel like they're a mile up. Used to make the drive from Rochester to Boston all the time for work and is a nice trip - esp in the fall when the trees are changing - except for that bridge. Terrifying to cross when windy, can't imagine is much fun on a train, either.