Truss- a structure that is a spider-web looking structure that contains triangles.

Arch- a curved structure that is made to hold a vertical load.

Beam- a flat structure that rests on pillars.

Cable- a cable is part of a suspension bridge that spans from a tower on the bridge to the bridge.

Deck- the deck is the surface that all the traffic goes across on.

Pier- supports the bridge at the ends.

Pile- a vertical tower that is put deep into the ground for a foundation of a bridge.

Span- a span is a beam that is supported by two or more support structures.

Suspension bridge- is a bridge that has towers that have cables running from the towers to the bridge.