.jpeg?trim=0,10,0,10&crop=&width=640&quality=70&enable=upscale)
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.
21. Building the M6
A close-up of a chipping spreader in operation | Heritage Images via Getty Images
22. Building the M6
A view of the construction of the M6 Motorway through the Lune Gorge near Jeffrey's Mount, showing the motorway crossing the River Lune, a temporary bailey bridge for the haul road in the foreground and huts and a batching plant in the background. | Heritage Images via Getty Images
23. Building the M6
The M6 Motorway through the Lune Gorge, showing the Roger Howe bridge in the foreground, carrying the A685 over the River Lune, and the Lawtland House viaduct in the background, carrying the A685 over the motorway | Heritage Images via Getty Images
.jpeg?crop=4:3&trim=&width=800)
24. Building the M6
Preston bypass in Lancashire, circa 1966. The first motorway in England, it later became part of the M6. | Getty Images