Howley lock entrance
Although silted on the bottom the lock is partly protected by the curve of the river and the running of water from the sluiceway. When the river levels are normal the lock is usually filled with water, especially so at high water 15/12/15.
Canon EOS 5D Mark II, f/6.3 @ 35 mm, 1/125, ISO 1250, No Flash
John Eyres © Manchester Ship Canal & Mersey