Route
Junction number
19
Markerpost
181.5 km
Name
Hambrook Interchange
Terminus
Not a terminus
Other routes
M32
Authority
Restricted turns
Full access
Services
No services
M4 J19 Hambrook Interchange
Lane configuration
- Lane 1 exits and does not return (part time using the hard shoulder).
- Lane 2 exits and does not return.
- Lane 3 splits to create a new lane.
- Lane 4 continues ahead.
- Lane 1 is gained from the entry sliproad (part time using the hard shoulder).
- Lane 2 continues, with option to exit.
- Lane 3 continues ahead.
- Lane 4 continues ahead.
Other events
National Speed Limit begins
Variable Speed Limits apply
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...
Aust to Beachley
Today two motorways cross the Severn near Chepstow. But as recently as 1965, the only crossing was a ferry that carried six cars at a time, from Aust to Beachley.
About this page
Published
Last updated
Published
Last updated
