Route
Junction number
32
Markerpost
109.0 km
Name
Dolphin Junction
Type
Non-standard interchange
Terminus
Not a terminus
Other routes
A5026, B5123
Authority
Restricted turns
Full access
Services
No services
A55 J32 Dolphin Junction
Layout and signage
|
Treffynnon — Holywell A5026 Rhosesmor B5123 |
B5123 |
|
A5026 |
Rhosesmor B5123 |
Lane configuration
- Lane 1 continues, with option to exit.
- Lane 2 continues ahead.
- Then further along:
- 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...
Old Motorway Photos
A gallery of images sent in by visitors to the site of original photos of motorways — including some impressive views of the M4 and M11 under construction.
About this page
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Last updated
Published
Last updated
