M40 1A Denham Interchange

See this location on SABRE Maps

Route
#
Junction number
1A
Markerpost
32.5
Name
Denham Interchange
Terminus
Not a terminus
Other routes
M25
Authority
Highways England
Restricted turns
Full access
Services
No services

Layout and signage

Watford (M1 Link)
Rickmansworth
Heathrow Airport
Slough (M4 Link)
(M11 Link, M23 Link)
M25 Link
  M25
(M4)
(M25)
    M25
(M1)
(M11)
  Watford (M1 Link)
Rickmansworth
Heathrow Airport
Slough (M4 Link)
(M11 Link, M23 Link)
M25 Link

Lane configuration

LanesLanesLanesLanesLanesLanes

  • Lane 1 is gained from the entry sliproad.
  • Lane 2 continues, with option to exit.
  • Lane 3 continues ahead.
  • Lane 4 continues ahead.

LanesLanesLanesLanesLanesLanes

  • Lane 1 exits and does not return.
  • Lane 2 continues ahead.
  • Lane 3 continues ahead.
  • Lane 4 continues ahead.