Key:seamark:gate:category

This key is used in conjunction with seamark:type=gate and indicates the type.

How to map

Set a node or draw a line where the gate is and add:

• seamark:type=gate
  • seamark:gate:category=see table below
  • seamark:gate:clearance_height=*
  • seamark:gate:clearance_width=*

Values

seamark:gate:category=*	Definition	Example	Count
flood_barrage	A flood barrier. See also waterway=security_lock.
caisson	A steel structure used for closing the entrance of locks, wet and dry docks.
lock	A massive hinged door at each end of a lock. See also waterway=lock_gate.
sluice	A sliding gate or other contrivance for changing the level of a body of water by controlling the flow into or out of it. See also waterway=sluice_gate.