Re: MORE TRAMWAY TRIVIA

["Ben Staples" <98711576@feline.hawkesbury.uws.EDU.AU>]

Ron BEST wrote in message ...

>What if a road happens to cross above the tunnel? AFAIK, the structure
>located on the main western line in Sydney between Sydney Central station
>and Redfern station is officially called "Cleveland Street Tunnel" - I
think
>it started out life as a bored tunnel, but has been extended since. It
>certainly carries plenty of live loading! (Regent and Cleveland Streets,
>both with tramways at one time. )


Recalling what I posted, I said a tunnel does not directly support a live
load. It may indirectly support a live load that is transmitted through the
earth. The live loading would physically have to be in contact with the
structure for it to be a bridge.

Ben Staples