If you're looking for a good term for the stormwater outlet, the engineering term is "headwall" for the outlet and "catch basin" for the inlet. I don't think either of these are commonly used in osm. "drain_outlet" and "drain_inlet" may be better terms and of more use outside of stormwater infrastructure. As for what connects the two; you usually have a ditch, pipe, or stream. The wiki on waterways suggests that all pipe flow is pressurized and therefore it should be waterway=drain.
https://www.surpriseaz.gov/DocumentCenter/View/1415/Common-Storm-Water-Structures Kevin On Tue, Sep 18, 2018 at 11:03 PM, Jonathon Rossi <[email protected]> wrote: > I've come across the desire to map a stormwater outlet at the beginning of > a stream a few times now and have failed to find an appropriate tag to > place on the node. These outlets are pretty common in residential areas > where the stormwater pipes underneath the roads (obviously unmapped) direct > their water to the lower streets and eventually enter naturally forming > creeks that existed before the residential estate was even built. > > Is there something that is already commonly used that I've been unable to > find? > > I've seen manhole=drain on the wiki, but that is the opposite end where > surface water enters the stormwater system. > > Jono > > _______________________________________________ > Tagging mailing list > [email protected] > https://lists.openstreetmap.org/listinfo/tagging > >
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