M1 Motorway, Structure 9 Luton-Dunstable Railway Bridge, M1, Caddington, Central Bedfordshire. An aerial view of the London to Yorkshire Motorway (the M1) under construction, showing the Luton to Dunstable railway bridge in the foreground and the bridge taking Bradley Road over the M1 behind it.
The Luton to Dunstable railway bridge was known as Structure 9, and the Bradley Road bridge as Structure 11
Copyright © Historic England Archive. John Laing Photographic Collection
Credit: A© Historic England Archive. Joh