[Tagging] Culverts and Fords

Andy Townsend ajt1047 at gmail.com
Wed Feb 28 22:06:16 UTC 2018

On 28/02/2018 21:31, Vao Matua wrote:
> What I would like to do is simply merge a node of the road and a node 
> of the stream and give it the tag tunnel=culvert (when I do this JOSM 
> complains)
Because that would then be a ford rather than a culvert - you're 
implying that at a certain point (the joining node) you've got your feet 
on the road and in the stream?

> In the case where a culvert carries a watercourse over a road then it 
> would make sense to create a way and layer=1

That sounds (at least in English English) like some sort of bridge 
(aqueduct) rather than a culvert - though this did come up the last time 
that culverts were discussed on this list** - someone found an old 
picture of a car going over a bridge over a culvert and thought that the 
picture's title ("the culvert") referred to the bridge.

If you genuinely don't know how a road crosses a waterway then you can 
of course just have the one crossing the other.  QA sites will flag this 
as an error (which is correct - it is) but if you don't have any 
information about how to correct the error (is there a ford?  bridge? is 
there no bridge but the stream runs in a box culvert?) then to my mind 
there's no problem leaving the "error" there so that someone who has 
more information can correct it.

Best Regards,


gets some hits.  There were also a bunch of discussions around the time 
was created - so have a look at the lists then.

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