Image: Wikimedia Commons

lock

Fall structure with a fixed chamber in which the water level changes

EntityQ105731

Also known as lock and dam · canal lock · pound lock · lock (water navigation) · lock (water transport)

Subclass of: fall structure
, sluice
Part of: canal

Overview

From Wikipedia, the free encyclopedia · Read full article · Text CC BY-SA 4.0

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. The distinguishing feature of a lock is a chamber in a permanently fixed position in which the water level can be varied. In a caisson lock, a boat lift, or on a canal inclined plane, it is the chamber itself that rises and falls.

Overview

All data

60 statements · 13% with external sources · numbers in brackets are citations

Properties for this type: located in/on physical feature
Operator: lock keeper
Different from: loch
sluice
Has use: ascent class of object(s) of occurrence: watercraft
descent class of object(s) of occurrence: watercraft
Has part(s) of the class: gate
valve

On other databases

41 identifiers linking lock across the web's reference databases

Data quality

statements

13%

externally sourced

Source last edited October 4, 2026. AIDB refreshes this page daily.

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AIDB. (2026). lock (Q105731). Retrieved from https://aidb.si/e/lock-Q105731