Route
Junction number
None
Markerpost
195.4 km
Name
Downhead Junction
Type
Parclo
Terminus
Not a terminus
Other routes
B3151
Authority
Restricted turns
Full access
Services
No services
A303 Downhead Junction
Layout and signage
|
Ilchester Yeovilton B3151 |
|
B3151 |
Ilchester Yeovilton B3151 |
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 monster seen from below
What might it have been like to stand in one spot and witness the arrival, and the uncertainty, of plans for an urban motorway in West London?
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.
Have you seen...
Alley by gaslight
Some of Central London's quieter streets are still, surprisingly, lit by old and rather beautiful gas lanterns. Here are a few, by day and by night.
About this page
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Last updated
Published
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