Route
Junction number
16
Markerpost
103.0
Name
Denham Interchange
Terminus
Not a terminus
Other routes
M40
Authority
Restricted turns
Full access
Services
No services
M25 J16 Denham Interchange
Layout and signage
Lane configuration
- Lane 1 exits and returns after the junction.
- Lane 2 continues ahead.
- Lane 3 continues ahead.
- Lane 4 continues ahead.
- Lane 1 exits and returns after the junction.
- 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
Imperfectly Odd: Batheaston Bypass
It has viaducts, a tunnel and plenty of controversy, but the amazing Batheaston Bypass doesn’t really work. What went wrong?
South London's lost motorways
Completing the story of London's epic Ringways, we've just published the Southern Radials, five more motorways that never saw the light of day.
To the north east!
Two new additions to our collection of Opening Booklets take us to Darlington and Middlesbrough.
Have you seen...
To the Limit
Speed limits are more emotive and divisive than almost anything else about the road network. How do you sort the fact from the opinion? And how did we end up with the speed limits we have?
About this page
Published22 April 2017
Last updated3 May 2022
Published22 April 2017
Last updated3 May 2022