Route
Junction number
40
Markerpost
294.5 km
Name
Flushdyke Interchange
Terminus
Not a terminus
Other routes
A638
Authority
Restricted turns
Full access
Services
No services
M1 J40 Flushdyke Interchange
Layout and signage
|
Dewsbury Batley Wakefield A638 |
A638 | 
|
A638 |
Wakefield Dewsbury A638 |
Lane configuration
- Lane 1 continues, with option to exit.
- Lane 2 continues ahead.
- Lane 3 continues ahead.
- Lane 4 continues ahead.
- Lane 1 continues, with option to exit.
- Lane 2 continues ahead.
- Lane 3 continues ahead.
- Lane 4 continues ahead.
Other events
Variable Speed Limits apply
- Variable Speed Limits apply
What's new
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.
The forever bottleneck, part 1
The M4 into London was one of the UK's earliest and most ambitious motorway projects. It was bold, pioneering... and almost instantly regretted.
Have you seen...
Glasgow
Even in the 1960s heyday of roadbuilding, some people said you could never build your way out of congestion. Glasgow had plans to prove them wrong.
About this page
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Last updated
Published
Last updated
