[Tagging] Mapping leats

[John Sturdy]

To me (native British-English speaker) "ditch" carries connotations of
being dirty (muddy) and being used either for drainage (to get water out of
somewhere, the destination not being important) or as a barrier.  So it's
more like a drain.

A leat is to take the water to a specific place, with the emphasis more on
the destination than on where it's getting the water from, and as it's for
a water supply, the water in it will generally be reasonably clean (or at
least not as muddy as ditch-water).

In terms of size, and of being made artificially, it is quite like a ditch,
but I think it's likelier to have an artificial lining e.g. concrete.

I'm inclined to think it doesn't really fit any of the existing waterway
tag values, and that I should make a proposal for it.

On Fri, Apr 21, 2017 at 12:42 PM, Martin Koppenhoefer <
dieterdreist at gmail.com> wrote:

>
>
> sent from a phone
>
> > On 21. Apr 2017, at 13:26, Chris Hill <osm at raggedred.net> wrote:
> >
> > A leat is a very specific thing. It is certainly not a canal, but
> neither is it a ditch nor drain.
>
>
> I would have thought it was a kind of ditch from the description in WP but
> if it isn't I agree that waterway=leat seems suitable to describe
> accurately the feature
>
>
> cheers,
> Martin
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