On the bright side the rig didn't hit either of the main suspension towers; those are where most of the time and effort of construction is. Replacing a section of suspended roadbed is (relatively) simple and fast, at least.
A large tree from the neighbors' yard rests inside Murray Gant's carport Monday, Aug. 29, 2005, in the Wedgewood Subdivision of Baton Rouge, La., after it was toppled by Hurricane Katrina. AP Photo/The Advocate, Bill Feig
Suspension bridges require somewhat balanced loading on the towers to remain upright. With a cable-stay bridge like the one pictured, it's unlikely enough cables would get sheared to cause a major failure, but on a bridge with arch-shaped major cables supporting smaller verticals, a failure of one of the major cables on either side of the bridge can lead to a collapse of the entire structure.