Pound lock
From Wikipedia, the free encyclopedia
A plan and side view of a pound lock.
A pound lock is type of lock that is used almost exclusively nowadays on canals and rivers. A pound lock has a chamber (the pound) with gates at both ends that control the level of water in the pound.
It was developed by the ancient Chinese.
In contrast, an earlier design with a single gate was known as a flash lock.
[edit] External links
- Locks on the River Thames
- Interactive lock from the original River and Rowing Museum website
