Marsh Lane overbridge, view north, 10 January 1996
Marsh Lane overbridge, view north (see all photos of the same view)
Work at Marsh Lane has only really started in the last three months. Foundations for the new bridge are now taking shape, and the line the road will take can be seen.
Structure 17 (Marsh Lane overbridge)
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.
Have you seen...
Abbreviations
How do you describe a road? One way is to use these engineering abbreviations, much loved by the UK's community of road enthusiasts.
