I rode anyway there was nobody to enforce it. But that really stinks I didn't really see anything wrong with the bridge i would still cross it if it got really sketchy.
You would, and so would the next guy and the guy after etc, and then somewhere along that line someone gets hurt... then the city is responsible for not taking action and closing a hazardous bridge.
Might have to get a floating platform and pull ourselves across like they have in Bloomington, MN along the Minnesota river!
They have a platform that is attached to ropes between trees and you load your bike and pull yourself across.