[OSM-talk] difference between waterway=canal and waterway=drain

[Stephen Hope]

What is your definition of an artificial waterway?  Dug and designed
by man?  Made of non-natural materials?

Near me a few years ago was an open marshy field that was fed by a
stream, with a stream exiting.

Now the developers have put houses up in the field.  They brought in
dirt and raised the ground level, dug a connection between the entry
and exit streams and landscaped around it. Is it a stream or a drain?
It's not concrete (except for one bridge area), it looks like a
stream, but it is man made.

Stephen