[Tagging] Drain vs ditch

Joseph Eisenberg joseph.eisenberg at gmail.com
Thu Jan 10 23:49:11 UTC 2019

Ditches are also used to drain excess water.

In the USA we have irrigation ditches in dry areas and drainage ditches in
wet areas.

Britain seems to lack irrigation - plenty of rain there.
On Fri, Jan 11, 2019 at 8:40 AM Eugene Podshivalov <yaugenka at gmail.com>

> 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
> But the Russian wiki says that irrigation waterways should be tagged as
> drains.
> https://wiki.openstreetmap.org/wiki/RU:Key:waterway
> So where is the truth?
> Thanks,
> Eugene
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