A55 J6 Nant Turnpike Interchange

Layout and signage

Rhostrehwfa
A5
Llangefni
A5114
  A5     A5

A5114
  Pentre Berw
A5
Llangefni
A5114

Lane configuration

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

LanesLanesLanesLanes

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

In this section

What's new

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.

The monster seen from below

What might it have been like to stand in one spot and witness the arrival, and the uncertainty, of plans for an urban motorway in West London?

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.

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M1 Architecture

The most unique motorway in Britain owes its identity to its fifties architecture. Much of it is in danger of being removed or irreperably altered. This page documents it in detail.

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