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:paperl...@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 <j...@jfeldredge.com <mailto:j...@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:rich...@systemed.net <mailto:rich...@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 -- View this message in context: http://gis.638310.n2.nabble.com/Culvert-and-average-contributor-tp5466555p5466615.html Sent from the General Discussion mailing list archive at Nabble.com. _______________________________________________ talk mailing list talk@openstreetmap.org <mailto:talk@openstreetmap.org> http://lists.openstreetmap.org/listinfo/talk -- John F. Eldredge -- j...@jfeldredge.com <mailto:j...@jfeldredge.com> "Reserve your right to think, for even to think wrongly is better than not to think at all." -- Hypatia of Alexandria _______________________________________________ talk mailing list talk@openstreetmap.org <mailto:talk@openstreetmap.org> http://lists.openstreetmap.org/listinfo/talk -- John F. Eldredge -- j...@jfeldredge.com "Reserve your right to think, for even to think wrongly is better than not to think at all." -- Hypatia of Alexandria _______________________________________________ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk