M6 motorway from the beginning of A14 in Catthorpe near Rugby in central England, passes between Coventry, Bedworth and Nuneaton, through Birmingham, Walsall and Stafford and near the smaller cities of Wolverhampton and Stoke-on-Trent. The motorway has major junctions with the M55 at Junction 32, north of Preston ending just before Blackpool, the M65 at Junction 29, south of Preston, towards Blackburn and then Burnley, the M56 and M62 at Warrington, giving access to Chester, Manchester and Liverpool. The M6 then heads north past Wigan, Preston and Lancaster. After the latter two cities it passes through Cumbria with some parts very close
M6 motorway 1970, the Lancaster–Penrith link was completed, along with a short section of motorway by-passing the south of Walsall. The most northerly section of the motorway also opened in 1970, running to the designated terminus north of Carlisle. By 1971, the full route was completed between the junction with the M1 motorway at Rugby and the A38 road several miles north-east of Birmingham city centre, including Bromford Viaduct between Castle Bromwich (J5) and Gravelly Hill (J6), which at 3½ miles is the longest viaduct in Great Britain. Junction 6 in Birmingham is widely known as Spaghetti Junction because of its complexity