Galder & Hebble Locks

摘要

When I saw Chris Clegg's email (WW January 2011), explaining how you get a 60ft narrow boat through Calder & Hebble locks I thought, at last somebody knows what he is talking about. Then I read the caption at the bottom. The length of 57ft is the maximum length of a wide-beam craft [through the locks]. The locks have to be longer, so the bottom gates can be opened and closed. Chris's drawing clearly shows a boat longer than 57ft, because the bottom gates could not be closed if the boat was wide-beam.