M55 motorway M55 motorway The M55 is a motorway in Lancashire, England, which can also be referred to as the "Preston Northern Bypass". It connects the seaside resort of Blackpool to the M6 at Preston. It is 12.2 miles (19.6 km) in length. The M55 has three lanes in both directions for most of its length. After leaving the M6 at junction 32, the road immediately interchanges with the A6. It then crosses the West Coast Main Line and Lancaster Canal before passing north of Wesham to meet the A585 at junction 3. It then continues west in a rural setting to
M6 motorway Motorists were diverted to the old road while the UK road research laboratory at Harmondsworth pondered the importance of surface water drainage. Later, other sections of the motorway were constructed, and finally it was all linked together, giving an uninterrupted motorway length of . The second phase of construction was completed in 1960, forming the Lancaster by-pass. Some south, the Stafford by-pass was completed in 1962. By 1965, the remaining sections of motorway Stafford–Preston and Preston–Lancaster had been completed. 1968 saw the completion of the Walsall to Stafford link as well as the Penrith by-pass some north in Cumberland. In