Tag:waterway=lock_gate

A gate of a  lock. (A lock is a device used for raising and lowering boats, ships and other watercraft between stretches of water of different levels on river and canal waterways by raising and lowering the water level in a fixed chamber.)

How to map

Simply add two nodes to the waterway at the points where the top/bottom gate is located and add the tag waterway=lock_gate to both of them. Direction of the waterway should be downstream (from top to bottom gate).

It is also possible to map the exact location of lock gate using a way .

The mapping of a lock and its components is described on the page lock=*.

Examples

Picture/Description	Tags	OSM Carto
	two ways with the tag: waterway=lock_gate

All features of a lock

1. Lock

Separate the way of the waterway=* at the two lock gates. Mark the newly created section with

• lock=yes
• lock_name=* - lock name
• waterway=canal

2. Lock chamber

• Draw a surface area and add natural=water + water=lock.

3. Gate of a lock

• Draw the lock gate with a line and add waterway=lock_gate.

4. Channel or river

• waterway=canal
• waterway=river

5. Riverbank

• natural=water + water=canal or water=river

Seamark tags

• seamark:type=gate
• seamark:gate:category=lock

See also

• barrier=coupure - a closable cut through a floodwall or a dyke
• waterway=sluice_gate - A movable gate to control water flow
• seamark:type=gate - Gate on a waterway (A structure that may be swung, drawn, or lowered to block an entrance or passageway.)
• lock=* - for the lock basin (Marks a stretch of waterway bounded by lock gates, forming a lock)
• Seamarks/Gates

Related terms: ‹ lock gate ›