 Slate traffic using the transporter wagons continued until Craig Ddu quarry closed in 1945, after which the transfer sidings lay disused.The engine shed - a sub-shed of Croes Newydd - closed as long ago as 1906, but it was clearly in use for some purpose in 1936.The building was demolished between 1936 and 1959 except for the walls towards the rear which supported the water tank which served the water crane, with the buffer stops being moved forwards outside the site of the shed.