The iron section was built after floods had damaged the bridge in 1838.
They blew up the track and damaged the bridge.
In 1783, the area was swept away by a severe flood which also damaged the bridge.
State officials worry a strong windstorm or earthquake could damage the bridge beyond repair.
In July 2009 a delivery truck damaged the bridge and rendered it out of service until repairs could be made.
Don't be alarmed: No earthquakes have damaged the bridge or its approaches.
In the late 1970s it was discovered that road salt had seriously damaged the bridge.
During the following years, several floods and other causes damaged severely the bridge.
The impact damaged the bridge, derailed some cars, and its content fell onto the ship.
In the winter of 1846 an ice jam damaged the bridge to Rockton.