Tag:waterway=security_lock
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 waterway = security_lock
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| Description |
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A security lock is a specific type of floodgate. 
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| Group: waterways |
| Used on these elements |
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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=security_lock.
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 droughts
- waterway=lock_gate – A gate of a lock
- waterway=sluice_gate – A movable gate to control water flow