They are. When the bridge was closed on Labor Day weekend for replacement of a section needed for the new bridge (should be done in 2012 or 2013) they found a cracked I-rod in another section of the cantilever section. They quickly designed, made and installed a bracket and rods that were a repair for the cracked part and opened the bridge only 1 hour late. Today, that repair fell.
Gotta love that union labor