Exposed Rebar on Bridge

Photo Credit: Alex Mead

Seen here is an example of the crumbling infrastructure often reported by the media. As can be seen in this photograph of the top side of a bridge, all the rebar of the side barrier is exposed along the roadway. This is especially bad because when salt is applied during the winter to prevent ice buildup on the roadway, the rebar is eroded even faster than it would be if it were only exposed to air and water. This is due to the chlorides in the salt that become active when dissociated in water.