Route
Junction number
23A
Markerpost
Unknown
Name
Magor Interchange
Terminus
Not a terminus
Other routes
A4810
Authority
Restricted turns
Full access
Services
Service area here
Service area name
Magor
Services operator
First
M4 J23A Magor Interchange
Layout and signage
|
Caldicot Magwyr Magor A4810  Magor
|
|
A4810 |
Magwyr Magor Caldicot A4810 Magor
|
Lane configuration
- Lane 1 exits and returns after the junction.
- Lane 2 continues ahead.
- Lane 3 continues ahead.
- Lane 1 exits and returns after the junction.
- Lane 2 continues ahead.
- Lane 3 continues ahead.
What's new
Grand openings
Our much-loved Opening Booklets section has two new publications for you to explore, and we’re making some overdue changes to make them easier to find and easier to read.
Silver bullet
The Silvertown Tunnel is finally open for business. One question remains: what’s it for?
Skid Risk, Accident, Fog
For the first time, we can share pictures of the pioneering experiment that lit up the Worcestershire countryside with enormous signs 61 years ago.
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.
About this page
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