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 M6 motorway The M6 motorway runs from junction 19 of the M1 at the Catthorpe Interchange, near Rugby, Coventry via Birmingham then heads north, passing Stoke-on-Trent, Liverpool, Manchester, Preston, Lancaster, Carlisle and terminating at the Gretna junction (J45). Here, just short of the Scottish border it becomes the A74(M) which continues to Glasgow as the M74. As of 2016, the M6, as well as combining with the length of the A14 from Brampton (Cambridgeshire) from junction with A1(M), the A74(M) and M74 to the junction with the M8 in Glasgow, forms the longest non-stop motorway in the United Kingdom and