Tom Taylor wrote:
> I'm going crazy trying to add waterways. Naturally they won't validate
> where they pass under highways. If I add a culvert I can't seem to
> persuade the validator that the water is running through it.
Perhaps you could share a link to the item concerned so that we can see
what it's tagged as?
Adding a level tag seemed to be the missing element. The warnings were
coming from the default validator in JOSM. I select the stream and the
road and click on Validation in the Validation Results dialogue. I get
the warning: "Crossing waterway/highway".
From your various responses and the "Tunnel" Wiki entry I pieced
together the following procedure that seems to work:
1. Add nodes to the waterway at the ends of the culvert.
2. Split the (water)way between those nodes.
3. Add the tag tunnel=culvert to the middle way segment.
4. Add the tag layer=-1 to that middle way segment.