Preston By-pass Preston By-pass The Preston Bypass was Britain’s first motorway. It was designed and engineered by Lancashire County Council surveyor James Drake as part of a larger initiative to create a north-south motorway network that would later form part of the M6 motorway. The bypass was opened on 5 December 1958 by the Prime Minister, Harold Macmillan. Nearly £3 million was spent in its construction. The original -mile () motorway ran around the east side of Preston between Bamber Bridge (now the M6, Junction 29) and Broughton (now the M55, Junction 1) and crosses over the River Ribble at Samlesbury at
M6 motorway (Ireland) and the N6 Concessions Limited will be responsible for collection of tolls for a period of approximately 27 years. This scheme was a matter of some controversy at its planning stage. The environmental agency An Taisce claimed that the National Roads Authority's planned route would be "particularly destructive" in passing the site of the 17th-century Battle of Aughrim The decision to toll the route is also controversial, as the M4 motorway to/from Dublin, which connects with the N6/M6 route, is also tolled. This is effect meant that motorists would have to pay two tolls when driving between Dublin and Galway.