[OSM-talk] [tagging] RFC open - new key - bridge_ref=<value>

[Gervase Markham]

Canal bridges, and some other bridge types too (railway bridges, 
certainly) have bridge numbers for navigation or for quick unambiguous 
reference. Canal boaters use bridge numbers as a primary means of 
navigation and direction. We need a tag to encode this.

http://wiki.openstreetmap.org/index.php/Proposed_features/Bridge_Number

Gerv