M3 J6 Black Dam Interchange

Layout and signage

Basingstoke
Newbury
Alton
A339
Reading (A33)
  (A33)
(A339)
      Basingstoke
Newbury
Alton
A339

Lane configuration

LanesLanesLanesLanesLanes

  • Lane 1 continues, with option to exit.
  • Lane 2 continues ahead.
  • Lane 3 continues ahead.

LanesLanesLanesLanesLanes

  • Lane 1 continues, with option to exit.
  • Lane 2 continues ahead.
  • Lane 3 continues ahead.