A11 Thickthorn Interchange

Layout and signage

Hethersett B1172
Services Thickthorn
Swaffham A47
Great Yarmouth A47
Ipswich (A140)
Lowestoft (A146)
  A47

B1172
    A47
(A140)
(A146)

  Great Yarmouth A47
Ipswich (A140)
Lowestoft (A146)
Hethersett B1172
Services Thickthorn
Swaffham A47

Lane configuration

LanesLanesLanesLanes

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

LanesLanesLanesLanes

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

Other events

  • Signs Traffic signals
  • Signs 40mph speed limit begins
  • Signs Traffic signals
  • Signs National Speed Limit begins

In this section

What's new

The long way round

When a road is closed, why isn't the diversion route just the quickest way past the closure?

Signs and sensibility

The one great attempt to make London’s streets logical - and how one retired chauffeur’s favourite routes changed the way you get around the capital.

A bridge under troubled bridges

A bridge that was ruined by another bridge, and a type of highway planning beyond any of the UK’s worst nightmares.

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