I think instead of making repairs and replacing the supports, they should just rebuild the bridge all together. From seeing pictures of it, I don't think I'd feel very comfortable riding across that thing. Crews probably crossed their fingers every time they went over the bridge, praying they'd make it across in once piece. Luckily, the one train that spotted the problem made it over. CSX said they spotted the problem during routine inspection and maintenance when it was really a train that spotted the problem from what I've heard.
Kevin