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
M5 motorway (Northern Ireland) M5 motorway (Northern Ireland) The M5 is a spur motorway of 1.4 miles (2.3 km) length in north Belfast, Northern Ireland. It connects the M2 to the A2 Shore Road at Hazelbank in Newtownabbey. It is a dual two lane road with most of the road on a causeway in Belfast Lough in order to bypass Whitehouse beach. Originally announced in 1964 and planned to follow the route of the B90 to Carrickfergus, the M5 would have also joined the planned M6 motorway. The scale of the scheme was reduced to its present form in the 1969 transport review, but