 Much of the western end of the canal, including the docks at Runcorn, disappeared when the much larger ship canal was built.The eastern end fared rather better, as the section between Twenty Steps Bridge and Latchford Lock was retained.A new lock, called Twenty Steps Lock, was built where the old canal left the course of the ship canal, and it was used to supply tanneries at Howley with hides which were imported from Argentina, and this trade continued until the 1960s.