Route
Junction number
13
Markerpost
109.4 km
Name
Castle Hill Interchange
Type
Terminus
Terminus at end of exit list
Other routes
A20, A2034
Authority
Restricted turns
Full access
Services
No services
M20 J13 Castle Hill Interchange
Layout and signage
| A2034 A259 |
|
Dover Canterbury Ramsgate A20 Folkestone A20 |
Lane configuration
- Lane 1 continues, with option to exit.
- Lane 2 continues ahead.
- Lane 1 continues, with option to exit.
- Lane 2 continues ahead.
Other events
Start of motorway regulations
End of motorway regulations
What's new
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.
Hello, here's my ridiculous side project
An introduction to what I write, and why I write it, and where my strange new road sign simulator fits in to all this.
Have you seen...
Almondsbury Interchange
The UK's first four-level interchange opened in 1966. Relive some of the wonder and excitement of this icon of the motorway era with the book published to mark its completion.
About this page
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Published
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