Walton Summit Walton Summit Walton Summit is an industrial area between Clayton Brook and Bamber Bridge, near Preston in Lancashire. It is in the South Ribble district. It is near the M61, M65 and M6 motorways and has a bit of single carriageway motorway from the M65/M61 roundabout. There is also the Lancaster Canal nearby. Walton Summit also consists of the smaller area of Seed Lee. The area does not have a long industrial past. As late as 1960, the area remained largely rural despite the then recent construction of the Preston by-pass section of the new M6 Motorway. Despite this, the
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