broklyn bridge
The first beam bridge was built in America
A suspension bridge suspends its load from main cables that run along both sides of the structure. The beam bridge is the oldest and most common type of bridge. A beam bridge is a horizontal structure, with beam supports at each end, and piers between the beams.
I would say the arch bridge because the Romans used it, but I'm not completely sure. Beam and pillar as used by the Egyptians.
The different between suspension bridge and beam bridge are beam bridge are for short distance but suspension bridge for long distance. Beam bridge are used for highway passes and suspension bridge for wide waterway passes.
Danyang-Kunshan Grand Bridge is the longest beam bridge in the world and is approx 164.8 kilometres long.
beam and tunnel
An example of a beam bridge is Chesapeake Bay bridge-tunnel Site: http://www.pbs.org/wgbh/buildingbig/bridge/index.html
beam bridge
Well with a beam it allows the bridge to support the bridge
beam
bottom of the beam
The Banpo Bridge is a girder bridge.