That is on the FO, the DFB has now taken over that bit of line and has the fun of pulling the bridge down and rebuilding it every year.Brusio viaduct, yep I know of it already,I had a plan to build something using curved ridge tiles for the arches.
I was thinking more of an inclined bridge as in girder type, I know of that one that gets dismantled for the winter then rebuilt afterwards, carn't recall it's name though.
Vid of a model showing part of what occures.
Furka DFB railway station - Wikipedia
en.wikipedia.org