To dream that you are crossing a bridge indicates that you have reached a significant crossroad. The choice you make can bring you great fortune, success, and happiness.
Bridges symbolize a major change that will propel you to new levels of awareness or personal growth.
To dream of a run-down bridge is a warning not to consider altering any aspects of your life until sometime in the future.
To see a bridge collapse in your dream implies that you haven't taken advantage of a potentially beneficial chance.