Route
Junction number
5
Markerpost
14.3 km
Name
Treban Interchange
Type
Terminus
Not a terminus
Other routes
A4080
Authority
Restricted turns
Full access
Services
No services
A55 J5 Treban Interchange
Layout and signage
|
Rhosneigr Aberffraw A4080 Bryngwran (A5) |
A4080 | 
|
A4080 (A5) |
Rhosneigr Aberffraw A4080 Gwalchmai (A5) |
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 sunlit uplands
On Saturday 31 May something historic happened. The Heads of the Valleys Road was finally complete.
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?
Have you seen...
Ringways
The story of an incredible plan to reshape London into a city of motorways, with the history from creation to cancellation and details on every unbuilt road.
About this page
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