I guess you could use any of those "bridges". Haven't been on that road for some time now and what I remember the road is "doable" but it's not really worth it unless you have a "sturdy" vehicle. And guessing that everyone that really HAS to get over that river, it will most likely be heavily congested. So unless you cannot wait to cross I wouldn't bother.
Structural steel doesn't break like that in a clean straight line. That was a butt joint that somebody welded together during the fabrication of the bridge parts. I guarantee you that wasn't in the fabrication drawings. It should have been one solid length of beam. The original fab shop cut corners to save money.