A bridge in a dream symbolizes a connection. If you dream about a bridge, the bridge can represent a connection that you have with a person, with a belief, with an activity or with a way of life. If the bridge in your dream is strong and sturdy, then this connection is strong in real life. However if the bridge is weak and you have difficulty crossing it, then you could be concerned that your real life connection is weakening.
If you dream that a bridge collapses suddenly, your dream could be a warning that you need to sever a connection with someone or something that is a negative influence in your life.
Crossing a bridge in a dream can represent a movement from one phase of your life to another.
Walking across a bridge can also symbolize moving to another state of consciousness or to another level of spiritual awareness.