On Fri, Jan 11, 2019 at 12:40 AM Eugene Podshivalov <[email protected]> wrote: > > Hi all, > Can anyone please explain the difference between waterway=ditch and drain? > As far as I understand the description on the English wiki they differ in > usage: > https://wiki.openstreetmap.org/wiki/Key:waterway > > drain - usually lined with concrete or similar and used to carry superfluous > water like storm water or industrial discharge > ditch - used for irrigation
The wiki page you link to defines a ditch as "An small artificial free flow waterway used for carrying superfluous water along paths or roads for drainage purposes." I do not see the word "irrigation" in that definition. It corresponds more to what Graeme wrote "I've always worked on "drain" looking more artificial eg lined with concrete / rocks etc, while "ditch" is more-or-less only dirt, but I've never been really very happy with the distinction?" I was always under the impression that the ones I encounter between farmland and meadows, which typically are surrounded by dirt, ground, plants are ditches. That drains are constructed with concrete or similar material and that there are normally no plants on the bedding of the drain. Sometimes it's hard to tell the difference between ditch and stream, because many streams were straightened along the borders of the farmland. m. _______________________________________________ Tagging mailing list [email protected] https://lists.openstreetmap.org/listinfo/tagging
