From OpenStreetMap Wiki
|Vertical clearance of a gate|
|Used on these elements|
|Status: In use|
|Tools for this tag|
This tag is part of Seamark tagging schema describing the vertical clearancea of a gate on a waterway.
For further information see Seamarks/Gates#Other Attributes.
How to map
Mapping of a lock and its components ist described on page lock=*.