Audlem Lock No 12 top gate, Cheshire
Introduction
The photograph on this page of Audlem Lock No 12 top gate, Cheshire by Roger D Kidd as part of the Geograph project.
The Geograph project started in 2005 with the aim of publishing, organising and preserving representative images for every square kilometre of Great Britain, Ireland and the Isle of Man.
There are currently over 7.5m images from over 14,400 individuals and you can help contribute to the project by visiting https://www.geograph.org.uk

Image: © Roger D Kidd Taken: 24 May 2009
There are two ground paddles (almost in line), one on each side of the canal. Raising these allows water to enter the lock via culverts through the lock chamber walls. These should be used first if a boat is in the lock. There is another large gate paddle, which lets water rush through an opening halfway up the gate. This can cause the front of a boat to be flooded if opened before the vessel has risen about halfway up the lock. Care is needed. Not all lock gates have this additional gate paddle, which can produce a very fierce stream of water.
