They are less likely to be hit by waves
Short span beam bridges are very strong.
Well with a beam it allows the bridge to support the bridge
water
Lake Ponchartrain Causeway
A beam that will not flex or bend - eg an I beam.
Along with motor vehicles the PATCO High Speed Line Commuter Train traverses this historic cable suspension bridge.
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 first beam bridge was built in America
The Banpo Bridge is a girder bridge.
beam bridge
It is a beam bridge