Junction number
None
Markerpost
Unknown
Name
Unknown
Other routes
None
A13 (M25 J30) Mar Dyke Interchange
Layout and signage
(M11 
Lane configuration
- Lane 1 exits and does not return.
- Lane 2 exits and returns after the junction.
- Lane 3 continues ahead.
- Lane 4 continues ahead.
- Lane 1 is gained from the entry sliproad.
- Lane 2 exits and returns after the junction.
- Lane 3 continues ahead.
- Lane 4 continues ahead.
What's new
Silver bullet
The Silvertown Tunnel is finally open for business. One question remains: what’s it for?
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?
Have you seen...
Junction Three
The M621 has one junction where everything leaves the motorway and heads for the city, and a very bizarre junction it is too.
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