[Tagging] Non Proposed Features

Pieren pieren3 at gmail.com
Mon Aug 30 21:48:05 BST 2010


On Mon, Aug 30, 2010 at 10:35 PM, Pierre-Alain Dorange <pdorange at mac.com>wrote:

>
> I'm not sure i have understand, but (for me) a culvert can't "carries a
> road over" ; a culvert is a kind of tube that goes under a structure to
> allow water to go throught a roadrail...
>
> Wikipedia for example tell :
> "A culvert is a device used to channel water. It may be used to allow
> water to pass underneath a road, railway, or embankment for example.
> Culverts can be made of many different materials; steel, polyvinyl
> chloride (PVC) and concrete are the most common."
> <http://en.wikipedia.org/wiki/Culvert>
>
>
And if you go ahead with this article:
"When boxes or pipes are placed side-by-side to create a width of greater
than twenty feet, the culvert is defined as a bridge in the United States"

Some examples:
http://www.horizontalholes.com/images/Box_Culvert_Job_09.jpg
http://rscallahan.com/sitebuildercontent/sitebuilderpictures/May242006011.jpg

Pieren
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