1977

Route Open Junctions Section
1 M90 Mar 1977 J8-8* Arlary → Arngask
2 M11 Apr 1977 J4-7 Redbridge → Harlow
3 M25 and A282 Apr 1977 J2-3 Dartford → Swanley
4 M4 Apr 1977 J46-49 Pontardulais Bypass
5 M20 May 1977 J1-2 Swanley → West Kingsdown
6 M5 May 1977 J30-31 Exminster section
7 M1 Jul 1977 J1-2 Brent Cross → Page Street
8 M18 Jul 1977 J4-5* Armthorpe → Hatfield
9 M69 Jul 1977 J0-2 Coventry section
10 M180 Sep 1977 J4-5 Brigg Bypass
11 M4 Oct 1977 J28-29 Tredegar Park → Castleton
12 M77 Oct 1977 J0-1 M8 → Dumbreck Road
13 M8 Oct 1977 J20-26 Renfrew Motorway
14 M4 Nov 1977 J37*-39 Pyle Bypass
15 M4 Dec 1977 J32-35 Coryton → Pencoed
16 M90 Dec 1977 J9-10 Muirmont → Craigend
17 M58 1977 J4-6 A506 Regional Road upgraded to motorway

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