i went over that bridge several times a week..the last time
was a week or so ago with my wife to the University...
as we crawled across in the traffic i was struck by all
the cement barriers that were put down to make new lanes.
thats alot of weight--plus heavy duty trucks and cement
mixers parked on the bridge..on the way home we took that
other bridge you may have seen with the people standing
watching, not because i thought it might fall but the hold
up as traffic went down to only a couple lanes..
in the end i think they will find it was all the extra
weight standing on the bridge that sheared the bolts on the
piers..my daughter who is with us in the SW USA thinks that
a large jackhammer that was in use set up some sort of vibes
that amplifed thru the truss work and sheared the bolts..