Riley Green interchange, view north west, 3 April 1994
Riley Green interchange, view north west (see all photos of the same view)
In this picture the minor realignment of the A675 Bolton Road, in the foreground, can be seen as a work in progress. The longer realignment of the A675 at the far side of the junction, in the distance, is already open to traffic.
Structure 20/20a (Riley Green interchange bridges)
A674 Chorley Road
A675 Bolton Road
What's new
The road that made no sense
It was the UK's only single-carriageway motorway, and twenty years ago it ceased to exist. This is the story of the strange fascination it held, and of my place in history.
The forever bottleneck, part 2
The second part of the story, where we learn why exactly the M4 gets narrower on the final approach to Europe’s biggest city.
The forever bottleneck, part 1
The M4 into London was one of the UK's earliest and most ambitious motorway projects. It was bold, pioneering... and almost instantly regretted.
