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Here's another for you clever clogs

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RJUKL | 01:13 Mon 01st Mar 2010 | ChatterBank
8 Answers
why are manhole covers alway round? (Yes I know that some are not but for the purpose of this question they are).
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Avatar Image ELVIS68
Drilling a round hole is easier than a square, hence round manhole covers
01:18 Mon 01st Mar 2010
Avatar Image Mamyalynne
Because any other shape could be rotated and therefore fall in unlike a round shape
01:20 Mon 01st Mar 2010
-- answer removed --
Avatar Image trt
Cant you think of a more intelligent Q RJUKL, this is so old.
01:25 Mon 01st Mar 2010
Avatar Image dothawkes31
If it is square it's not a manhole cover it is a grid.
12:28 Mon 01st Mar 2010
Avatar Image another-view
mamaylynne is correct. Any other shape could fall in.
12:30 Mon 01st Mar 2010
Avatar Image RJUKL
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Yes it is round only so that it can never drop down. I found this out when I raised my rectangular manhole cover and it almost fell down the manhole when it was at an angle.
23:58 Mon 01st Mar 2010
Avatar Image ELVIS68
Ooher
00:00 Tue 02nd Mar 2010

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