Chronology Maps

1983 1984 1985

Click a section name to see full details and a map.

Completed Route Name Start End Original number
M25 Waltham Cross - Theydon J25 Waltham Cross J27 Theydon
M25 Bignell’s Corner - Potters Bar J23 Bignell’s Corner J24 Potters Bar A1178
M27 Chilworth - Stoneham J4 Chilworth J5 Stoneham
M65 Blackburn - Clayton-le-Moors J6 Whitebirk J7 Hyndburn

In this section

What's new

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.

The forever bottleneck, part 2

The second part of the story, where we learn why exactly the M4 gets narrower on the final approach to Europe’s biggest city.

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Junction Three

The M621 has one junction where everything leaves the motorway and heads for the city, and a very bizarre junction it is too.