Originally Posted by
steelbikeguy
that's a shame.
There are bridges that give cyclists second thoughts. One that comes to mind is the former bridge across the Mississippi at Savannah, Illinois. It had a metal grate deck, so you could look down and see the water below while sort of slipping around on the metal. It also had a low side rail that wouldn't keep you from flipping over it.
On a popular local club ride, more than a few folks chose to walk their bikes over that bridge...
Steve in Peoria
The yearly Bridge Pedal event in Portland crosses the Hawthorne Bridge, which also has a steel grate deck. The organizers cover it in sheets of corrugated cardboard that are duck-taped together. This seems like a huge undertaking for a one-day event, but I suppose it avoids slip-sliding that could become massive pileups. On normal traffic days there is a concrete bike/walking lane that has adequate capacity to keep you from having to use the car lanes.