Kocher Viaduct

No reason, I just liked these photos.

Kocher Viaduct, Geislingen, Germany
by Fritz Leonhardt

iPad Girder Profile

Grid of Girders / Beams

Would there be any benefit - i.e. thinner - to have multiple lines of beams/girder running the length of the bridge with tranverse beams when necessary? Basically like the KAIT roof structure, or the SANAA Ferry Terminal.

And a bridge with columns!