[OSM-talk] Culvert and average contributor

[John F. Eldredge]

Sewer tunnel would be a description of the largest sewers, containing the merged outflow of many smaller sewers.  As you said, frequently these are simply referred to as sewers.  I remember watching one large storm-sewer tunnel being built, years ago; it was about seven meters in diameter.

-------Original Email-------
Subject :Re: [OSM-talk] Culvert and average contributor
From  :mailto:paperless at timmcnamara.co.nz
Date  :Thu Aug 26 13:42:50 America/Chicago 2010


This is how I understand "culvert", from New Zealand. Although I've rarely heard "sewer tunnel", it's just "sewer".

Tim.


On 27 August 2010 06:29, John F. Eldredge <john at jfeldredge.com <mailto:john at jfeldredge.com> > wrote:
 The term "culvert" is also standard usage in American English.  "Tunnel" is generally used to mean an underground passageway large enough for a person to walk through, if not larger.  Also, the default assumption is that a tunnel is not intended for drainage, unless there is a longer phrase such as "sewer tunnel".  A "culvert" refers to a tube or pipe under a roadway or other raised area, meant to carry surface-water runoff.  Some are large enough to walk through, but most aren't.  Usually they extend only for a short distance, such as the width of a roadway.  "Covered" does not indicate the size of a passageway, nor does it indicate the intended purpose of the passageway.
 
 -------Original Email-------
 Subject :Re: [OSM-talk] Culvert and average contributor
 From  :mailto:richard at systemed.net <mailto:richard at systemed.net> 
 Date  :Thu Aug 26 13:10:13 America/Chicago 2010
 



 
 
 Pieren wrote:
 > Question 1 : is "culvert" commonly used by native english speakers ?
 > Is that a term mainly used by civil engineers ?
 
 It's in very frequent use among boaters on the British canals, largely
 because the ruddy things keep collapsing and taking the canal with them.
 
 cheers
 Richard
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 John F. Eldredge -- john at jfeldredge.com <mailto:john at jfeldredge.com> 
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