Route Open Junctions Section
1 M4 Jan 1966 J18-20 Tormarton → Almondsbury
2 M6 Mar 1966 J11-13 Shareshill → Dunston
3 M1 May 1966 J24-25 Kegworth → Sandiacre
4 M4 Jul 1966 J39-41* Port Talbot Bypass Opened as A48(M)
5 M32 Sep 1966 J0-1 Hambrook Spur
6 M4 Sep 1966 J20-21 Almondsbury → Aust
7 M48 Sep 1966 Severn and Wye Bridges Opened as M4; became M48 in 1996
8 M6 Sep 1966 J10-11 Darlaston → Shareshill
9 M1 Nov 1966 J4-5 Brockley → Berrygrove
10 M1 Nov 1966 J25-26 Sandiacre → Nuthall
11 M74 and A74(M) Dec 1966 J5-8 Bothwell → Hamilton

In this section

What's new

South London's lost motorways

Completing the story of London's epic Ringways, we've just published the Southern Radials, five more motorways that never saw the light of day.

To the north east!

Two new additions to our collection of Opening Booklets take us to Darlington and Middlesbrough.

The ghost junction

The only UK motorway that didn’t connect to ordinary roads finally got its own interchange in 2019. But it's not open, because it still doesn’t touch any ordinary roads.

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Major incidents

What happens when there's a big accident on a trunk route? Who picks up the pieces, and why does it take so long?