[OSM-newbies] How to insert a culvert?

[Tom Taylor]

Thank you all for your answers.

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.

On 29/11/2012 4:16 PM, Jo wrote:
> Give them a layer tag that is lower than the layer tag of the highway. You
> probably want layer=-1, where you add tunnel=culvert. No layer tag stands
> for layer=0.
>
> Polyglot
>
> 2012/11/29 Tom Taylor <tom.taylor.stds at gmail.com>
>
>> 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.
>>
>> So how to do it?
>>
>> Tom Taylor
>>
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