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| | Bridge (Site not responding. Last check: 2007-10-15) |
 | | A bridge is a structure built to span a gorge, valley, road, railroad track, river or other body of water, or any other physical obstacle. |
 | | In the latter case there may be restrictions in use; for example, it may be a bridge carrying a highway and forbidden for pedestrian s and bicycles, or a pedestrian bridge, possibly also for bicycles. |
 | | Smaller moveable bridges, called jetway s, are used in airport s to allow passengers to cross the variable distances and heights between the terminal building and aircraft of varying sizes. |
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