On Sun, 08 Jun 2008 08:32:33 -0700, Darren New <dne### [at] sanrrcom>
wrote:

>Hinges are your friend. :-)

I'm not sure what you're thinking about but hinges are not your friend
when your talking about manholes. The manhole cover can be left up.
(Naughty, naughty) Also hinges would be a weak point and liable to
break. They would also involve lifting the heavy manhole cover upright
which would take more effort than lifting it up an inch or two and
sliding it away. 
-- 

Regards
     Stephen

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