Route
Junction number
4
Markerpost
9.9 km
Name
Dalar Hir Interchange
Type
Terminus
Not a terminus
Other routes
A5
Authority
Restricted turns
Full access
Services
No services
A55 J4 Dalar Hir Interchange
Layout and signage
|
Caergeiliog A5 Bodedern |
A5 | 
|
A5 |
Bryngwran A5 Bodedern |
Lane configuration
- Lane 1 continues, with option to exit.
- Lane 2 continues ahead.
- Lane 1 continues, with option to exit.
- Lane 2 continues ahead.
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...
Burdock Way
The humble West Yorkshire town of Halifax may well be the creator of the most adventurous urban road scheme in the country. It's astonishing, but what was built isn't even the half of it.
About this page
Published
Last updated
Published
Last updated
