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From: yarvin-norman@cs.yale.edu (Norman Yarvin)
Newsgroups: comp.dcom.telecom
Subject: Re: Manhole Covers (was: 10-NYT and 10-NJB)
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Date: 25 Jun 90 20:52:46 GMT
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X-Telecom-Digest: Volume 10, Issue 453, Message 11 of 15


rees@dabo.ifs.umich.edu (Jim Rees) writes:

>>Has anyone ever noticed non-round manhole covers?  Nashua and Hudson,
>>N.H.  have TRIANGULAR ones - don't know what service or utility.

>I think this has been discussed before.  Round covers are popular
>because it's impossible for the cover to fall into the hole.

This also holds for triangular covers.  (only if they are equilateral,
though.)


Norman Yarvin					yarvin-norman@cs.yale.edu