|tunnel = culvert|
|For a stream passing under a road. Use it on the section of stream passing under the road.|
|Used on these elements|
|Status: In use|
|Tools for this tag|
A culvert is a device used to channel water. It may be used to allow water to pass underneath a road, railway, or embankment for example. Culverts can be made of many different materials; steel, polyvinyl chloride (PVC) and concrete are the most common. Formerly, construction of stone culverts was common.
How to Map
Apply to the section of covered waterway. Use the tag layer=* as usual for tunnels.
See Key:tunnel for a description of the preferred way of connecting culvert waterways to adjoining waterway sections.
The culvert=yes syntax is deprecated (since 2010) due to ambiguity. Please use tunnel=culvert instead. (While technically sound there is no use of culvert=no as of April, 2015, so avoid it altogether.)
- Culvert (Wikipedia)
- Water feature#Navigations
- Different types of culverts (Cornell University)
- The discussion page for details of an earlier OSM tagging system, culvert=yes.
- See the seemingly endless debate over the mailing list