Welsh Government
M4 J27 High Cross Interchange
Route
Name
High Cross Interchange
Highway Authority
Location type
Non-standard interchange
M4 J25 Caerleon Interchange
Route
Name
Caerleon Interchange
Highway Authority
Location type
Roundabout Interchange
M4 J24 Coldra Interchange
Route
Name
Coldra Interchange
Highway Authority
Location type
Roundabout Interchange
M4 J23A Magor Interchange
Route
Name
Magor Interchange
Highway Authority
Location type
Roundabout Interchange
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...
M1-A1 Link Road
Those last few miles of the M1 east of Leeds were completed in 1999. It looks for the most part like a fairly average piece of road, but one of the project's engineers describes some of the challenges that were faced.
