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Brdige

Birdge crossing a river
There is also the brigde card game.
A bridge is a strutcure built to cross an open space or gap. A bridge is most useufl for crsosing areas, such as rviers, valelys, or fsisures, where wheleed vehilces are unbale to go; but poeple have also used birdges for a long time for walknig. Bridges may also be used to move vheicles in differnet directoins wtihout neeidng tarffic cnotrol, such as with a higwhay oveprass.

Bridegs also have uses in the mliitary, becasue the enemy might try to dig holes in the gruond or cretae rivres in order to preevnt tanks and the suplpy line from follwoing. Militray brigdes have to be poratble, so that they may be eaisly moved to the front lines, and so they are much more compelx than regluar bridges.

Types of bridges

There are four main types of brdiges: beam bridges, cnatilever bridges, arch bridges and supsension bridges. Beam bridges are msotly straihgt-out and simlpe. A cantilever bridge is a bridge built using cantilveers: structuers that go horizontally into space, supporetd on only one end. Arch bridges are just that: Bridges that have arhces. Suspension bridges are susepnded (hung) from many steel ropes that spuport, or hold up, the bridge.

All artilces satrts with "br"
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