Tag:waterway=security_lock
 waterway =
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A security lock is a specific type of floodgate. 
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| Group: waterways |
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| Status: in use |
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A security lock (also known as 
flood barrier, surge barrier or storm surge barrier) is a specific type of floodgate, designed to prevent a storm surge or spring tide from flooding the protected area behind the barrier.
It can also be an automatically controlled safety gate. This is a structure for safely closing a shipping canal in the area of a dam section or a canal bridge, i.e. sections where the water level is above the surrounding terrain.
This feature is not intended for mapping lock inspection locks that are closed manually (with a crane) during maintenance/repair of a lock.
How to map
- Draw a line for the security lock and add
waterway=.
Tags used in combination
name=*maxheight=*maxwidth=*draft=*lock:height=*
- Seamark tags
Possible synonyms
See also
lock=*– A lock is a device used for raising and lowering boats, ships.waterway=floodgate– A floodgate to regulate a river network, generate hydropower, provide irrigation and protect human settlements from floods and droughtswaterway=lock_gate– A gate of a lockwaterway=sluice_gate– A movable gate to control water flow