A cantilever bridge is a bridge built using structures that projects horizontally across the object that the bridge will cross and is supported only from the end by a section called a cantilever.

The cantilever bridge consists of two cantilever spans extending from opposite sides of the crossing and a suspended span in the middle connecting the two opposite cantilever spans.

For small footbridges, the cantilevers may be simple beams; however, large cantilever bridges designed to handle road or rail traffic use trusses built from structural steel, or box girders built from pre-stressed concrete

Astoria Megler bridge, 1966

Bridge of the Gods, 1926

Deception Pass bridge, 1935