[Tagging] Stormwater outlet into stream

Paul Johnson baloo at ursamundi.org
Thu Sep 20 04:06:25 UTC 2018

On Wed, Sep 19, 2018 at 5:08 PM Graeme Fitzpatrick <graemefitz1 at gmail.com>

> Thinking about how this would apply to other waterways I've mapped, I
>> currently map the streams or drains that pass under roads which rainwater
>> passes through like below, these are quite similar but with a completely
>> different tagging scheme.
>> waterway=drain or stream
>> tunnel=culvert
>> layer=-1
>> Do we use waterway=* where it is a naturally occurring stream but humans
>> earthfilled the location with a concrete culvert and put a road over the
>> top but that is still part of the earth's waterways of the creek system.
>> Can't be true because waterway=drain is for man made waterways.
> That's the way I've always done it as well! To my mind, a stream running
> through a culvert is still a natural waterway that we've put a lid over -
> if it was a man-made dug out channel, that would make it a drain.

I generally consider a drain to be basically a man-made drainage ditch,
otherwise a lot of creeks in the Tulsa Area and...really the entire length
of the Los Angeles River, would be a drain, even though they're basically
natural streams with concrete-fortified banks.
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