|Preston Northern Bypass|
|From:||Sharoe Green (SD540349)|
|To:||Great Marton (SD352337)|
|Length:||12 miles (19.3 km)|
|Route outline (key)|
Link between Blackpool and M6, forming both a link to the seaside resort and a northern bypass of the city of Preston. The easternmost section of the M55 is part of the Preston Bypass, the United Kingdom's first motorway. Surprisingly, despite the M55 and M6 being a superior route for Blackpool to Lancaster and vice versa traffic, traffic in the centre of Blackpool is still signed to Lancaster down the old A586/A6 or A586/A588 routes.
Broughton Interchange connects the M6 to the M55. It enables all movements in all directions as well as catering for movements to and from the nearby A6. Both carriageways of the M6 have recently been upgraded to 3 lanes through the interchange.
The Preston Bypass was the first motorway opened in the United Kingdom in December 1958. It has always been part of the M6 and since 1974, part of the M55. Today it is almost virtually unrecognisable following major reconstruction and widening works in the 1990s.