An abutment is a vertical wall at the end of a bridge, at right angle to the centerline of the roadway, that acts as a support for the end of the bridge and holds back the embankment so that it doesn't slump and undermine the end of the brige.

This is a Glossary term.

abutment (last edited 2009-03-21 22:53:42 by JimIrwin)