[Tagging] Stormwater outlet into stream

Warin 61sundowner at gmail.com
Thu Sep 20 12:53:39 UTC 2018

On 20/09/18 21:53, EthnicFood IsGreat wrote:
>> From: Jonathon Rossi <jono at jonorossi.com>
>> To: "Tag discussion, strategy and related tools"
>>     <tagging at openstreetmap.org>
>> Subject: Re: [Tagging] Stormwater outlet into stream
>> Message-ID:
>>     <CAGb9TQJ=bTtXt-HgRuwQSGX0o9=KV2fZzfya1UG6D8mnbRvaqw at mail.gmail.com>
>> Content-Type: text/plain; charset="utf-8"
>> Thanks everyone. Apologies in advance for the long reply.
>> @Graeme I see you tagged the node with
>> man_made=drain_outlet+substance=rainwater. In your example it makes 
>> sense
>> to map the underground pipe because you know exactly where it is, but 
>> I'd
>> hate for these to start rendering in the future and bits of incomplete
>> pipes (a few metres long) start showing up drawing over streets.
>> The wiki for man_made=pipeline
>> <https://wiki.openstreetmap.org/wiki/Tag:man_made%3Dpipeline> says it is
>> meant for "major" pipelines, which these aren't really apply:
>> By using pipeline are we abusing that tag? Dictionary.com's 
>> definition of
>> pipeline also indicates that a network of pipes isn't a pipeline. I too
>> don't view the reticulated water network of pipes a pipeline, however 
>> there
>> would generally be a pipeline going from a water treatment plant to a 
>> water
>> reservoir/storage tank; and in the same way the network of sewerage 
>> drains
>> aren't a pipeline, but you could have a pressurised or gravity 
>> pipeline to
>> move sewage to a treatment plant.
>> Mark's suggestion to use man_made=sewer didn't sound right to me 
>> because I
>> always view sewers as for wastewater which must go to a treatment plant
>> before entering waterways. Dictionary.com seems to agree, the values for
>> manhole=* <https://wiki.openstreetmap.org/wiki/Key:manhole> also 
>> agree, this
>> OSM tagging proposal also agrees
>> <https://wiki.openstreetmap.org/wiki/Proposed_features/Utility_Schema>,
>> however Wikipedia seems to indicate some people refer to stormwater 
>> drains
>> as sewers too, this might be a location thing because I found some
>> indication that some cities have a combined waste and rain water drain
>> (these obviously won't directly connect to a waterway).
>> substance=rainwater;sewage works though.
>> [...]
> FWIW, I worked in the highway construction business for 14 years in 
> the US.  In the industry terminology where I was, a "pipeline" 
> carrying wastewater to a treatment plant was termed a sanitary sewer, 
> and a pipeline carrying stormwater (rainwater) was called a storm sewer.

Humm.. I have always take 'sewer' to mean grey water.
The uk Cambridge Dictionary agrees with me.
The uk Oxford Dictionary agrees with you, and give a reference backwards.

I'll have to do some more digging (err pun).  In general I go with the 
Oxford Dictionary.

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