Bridge Terminology

Front

abutment

Back

A structure that supports the ends of a bridge.

Front

deck

Back

The surface of the bridge where vehicles and pedestrians travel.

Front

superstructure

Back

The part of the bridge above the foundations, including the deck and supporting elements.

Front

pier

Back

A vertical structure that supports the bridge and transfers loads to the foundation.

Front

span

Back

The distance between two supports of a bridge.

Front

foundations

Back

The part of the bridge that transfers loads to the ground.

Front

beam

Back

A horizontal structural element that supports loads.

Front

bridge

Back

A structure built to span a physical obstacle, such as a body of water or a road.