The construction of this section was completed during the 1960s and included the iconic Pennine Tower at Forton Services.
The extensive project was a challenge for engineers, carving landscapes, hilly terrains and densely populated areas. They used innovative techniques such as embankments, bridges and tunnels to deal with varying elevations to ensure a smooth route. It was completed in the 1972 and alleviated congestion on the A6 and A59.

25. Building the M6
Preston Bypass, Lancashire, 1958. Britain's first motorway under construction. It was opened by Harold MacMillan in December. This is the north end at Broughton where the M55 now joins the M6 | Getty Images
.jpeg?trim=0,10,0,10&crop=&width=640&quality=70&enable=upscale)

