lock
Sign in to savefall structure with a fixed chamber in which the water level changes
AI overview
A lock is a structure built into waterways that uses a chamber to raise or lower boats between different water levels. By filling or draining the chamber, it allows vessels to move safely through areas where the water level differs, making water transportation possible across regions with natural elevation changes.
AI-generated from the Wikipedia summary — may contain errors.
Article
Canal lock and lock-keeper's cottage on the Aylesbury Arm of the Grand Union Canal at Marsworth in Hertfordshire, England. Lock on the River Neckar at Heidelberg in Germany. Three Gorges Dam lock near Yichang on Yangtze river, China.
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 (usually then called a caisson) that rises and falls.