Route
Junction number
12
Markerpost
46 km
Name
Portsbridge Interchange
Type
Non-standard interchange
Terminus
Terminus at end of exit list
Other routes
M275, A3, A27
Authority
Restricted turns
Some turns restricted
Services
No services
M27 J12 Portsbridge Interchange
Layout and signage
|
Portsmouth Continental Ferry  M275 Link Cosham Hilsea A3 |
M275 A3 |
|
A27 A3 |
Lane configuration
- Lane 1 exits and does not return.
- Lane 2 continues ahead.
- Lane 3 continues ahead.
- Lane 1 continues ahead.
- Lane 2 continues ahead.
- Lane 3 is gained from the entry sliproad.
Other events
Start of motorway regulations
End of motorway regulations
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...
North Cross Route
The route and the history of the North Cross Route, proposed in the 1960s as the northern side of London's innermost motorway ring road.
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