M55 motorway meet junction 4, where the motorway ends and becomes the A5230. The western part of the M55, and the first few hundred metres of the A5230, occupy the route of the old Blackpool Branch railway line. The first motorway constructed in Great Britain was the M6 Preston Bypass, opened in 1958. This ran from the current M6 junction 29 to the M55 junction 1. It was built as a two-lane route. In 1965 the M6 was extended north from what is the current day junction 32 to meet the Lancaster Bypass, and the M6 junction was rebuilt to its current
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