The M53 is a 18.9-mile (30.4 km) motorway in the Metropolitan Borough of Wirral and Cheshire on the Wirral Peninsula in England. It can also be referred to as the Mid Wirral Motorway. It runs between the Kingsway Tunnel, at Wallasey in the north, and the A55 at Chester.The main reason for the motorway was to provide a through route to the new Mersey Road Tunnel, Kingsway, which was built at the same time. Part of this motorway was originally the M531.