Suspension bridge, bridge with overhead cables supporting its roadway one of the oldest of engineering forms, suspension bridges were constructed by primitive peoples using vines for cables and mounting the roadway directly on the cables. A suspension bridge is a type of bridge in which the deck (the load-bearing portion) is hung below suspension cables on vertical suspenders the first modern examples of this type of bridge were built in the early 1800s. : a bridge that has its roadway suspended from two or more cables usually passing over towers and securely anchored at the ends — see bridge illustration.
Science — physical science have you ever wondered how does a suspension bridge work when were suspension bridges first built what materials are used in modern suspension bridge cables.
Suspension bridges in their simplest form were originally made from rope and wood modern suspension bridges use a box section roadway supported by high tensile strength cables.
San francisco's golden gate bridge stands as a classic example of a suspension bridge regine mahaux/photodisc/ getty images as the name implies, suspension bridges, like the golden gate bridge or brooklyn bridge, suspend the roadway by cables, ropes or chains from two tall towers.