The 93 mile (150km) long Trent & Mersey canal links the rivers Mersey and Trent and to provide inland waterway route linking the ports of Liverpool and Hull.
The rise on this lock is 8’ 8” (2.64m).
Lock 42 is a double lock which allows two narrowboats to use the lock at the same time. This type of lock had the twin advantages of speed and saving water.
Poll Lock Aqueduct is 55 yards (50 meters) away to the west.