On Fri, Aug 27, 2010 at 9:17 AM,  <ed...@billiau.net> wrote:
> In a town which does not have underground storm water management, the
> gutters at the side of the roads have to cross one of the roads at an
> intersection so you have a half-elliptical shaped culvert which traffic
> crosses, making a little ford. The wikipedia definition of culvert is
> simply "A culvert is a device used to channel water." and these fit into
> that definition.

I think that is (was, since I fixed it) an error in the Wikipedia
article: http://www.google.com/search?q=define%3Aculvert
Without a roof it's simply a drainage ditch (waterway=drain).

By the way, http://www.merriam-webster.com/dictionary/culvert lists "a
bridge over a culvert" as one definition.

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