Route
Junction number
M25 J2
Markerpost
28.5 km
Name
Darenth Interchange
Terminus
Not a terminus
Other routes
M25, A282, A296
Authority
Restricted turns
Full access
Services
No services
A2 (M25 J2) Darenth Interchange
Layout and signage
(M23 
Lane configuration
- Lane 1 exits and does not return.
- Lane 2 continues ahead.
- Lane 3 continues ahead.
- Lane 4 continues ahead.
- Lane 1 is gained from the entry sliproad.
- Lane 2 continues, with option to exit.
- Lane 3 continues ahead.
- Lane 4 continues ahead.
What's new
The monster seen from below
What might it have been like to stand in one spot and witness the arrival, and the uncertainty, of plans for an urban motorway in West London?
The road that made no sense
It was the UK's only single-carriageway motorway, and twenty years ago it ceased to exist. This is the story of the strange fascination it held, and of my place in history.
The forever bottleneck, part 2
The second part of the story, where we learn why exactly the M4 gets narrower on the final approach to Europe’s biggest city.
Have you seen...
Reigate Tunnel
An unassuming Surrey market town with an amazing claim to fame — the world's first road tunnel.
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