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    #1

    who can tell me the differences among "overpass, flyover, and viaduct"?

    who can tell me the differences among "overpass, flyover, and viaduct"?
    THANK YOU!

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    #2

    Re: who can tell me the differences among "overpass, flyover, and viaduct"?

    A flyover is a British term for overpass. I've never heard it used outside of Britain, in fact. They are the same things, and are generally spans over other traffic below them.

    A viaduct is a bridge consisting of several smaller spans. It doesn't necessarily pass over other traffic; it might pass over a river for example, or even an empty gully (tiny valley).

  1. BobK's Avatar
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    #3

    Re: who can tell me the differences among "overpass, flyover, and viaduct"?

    More about 'viaduct': in Br E - at least - a viaduct often (if not always - I'm not sure) carries a railway track or a canal*, rather than a road.

    b

    PS Not always, if I'm right: I think the 'Holborn Viaduct' (in London) carries a road.

    * - carrying barges, not drinking water (in which case it would be an aqueduct)
    Last edited by BobK; 12-Oct-2008 at 16:50. Reason: Added PS

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