And lo on Sun, 08 Jun 2008 23:01:45 +0100, Darren New <dne### [at] sanrrcom>  
did spake, saying:

> Stephen wrote:
>> Not in the UK they don't. They are kept in position by gravity. They
>> lift in and out vertically.
>
> Wow. How do they keep them level with the road, then? How do they even  
> make them level with the road in the first place?

If you're talking about what I think you are then there are adjustment  
bricks that can be altered to raise or lower the level, but on a new road  
(or a stripped one) the level of the road surface is dictated by the  
ironworks. If an alteration is done then a square is cut around the cover,  
the work is done and that section of road is resurfaced to the level of  
the ironwork. Oh sure there are rules about the degree of difference  
between new and existing surfaces - heh, but this is why we have the lumpy  
bumpy roads we know and love :-P

-- 
Phil Cook

--
I once tried to be apathetic, but I just couldn't be bothered
http://flipc.blogspot.com

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