Route
Junction number
None
Markerpost
Unknown
Name
St Mellons Interchange
Type
Terminus
Terminus at end of exit list
Other routes
A48
Authority
Restricted turns
Some turns restricted
Services
No services
A48(M) St Mellons Interchange
Layout and signage
|
Llaneirwg St Mellons A48 |
 |
A48 |
Caerdydd Cardiff A48 |
Lane configuration
- Lane 1 continues, with option to exit.
- Lane 2 continues ahead.
- Lane 1 continues ahead.
- Lane 2 continues ahead.
Other events
Start of motorway regulations
End of motorway regulations
What's new
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.
All change
In July 2024, a new Government entered office with a very different set of priorities. What does it mean for a faltering roads programme?
A century of motorways
It's 100 years since the opening of the world's first motorway, the Autostrada from Milan to the Lakes.
Have you seen...
Reigate Tunnel
An unassuming Surrey market town with an amazing claim to fame — the world's first road tunnel.
About this page
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Published
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