A worker pouring the centre expansion joint during the construction of Structure 9 on the London to Yorkshire Motorway (M1), an overbridge for the Luton-Dunstable railway line
- Date:
- 17 May 1959
- Location:
- M1 Motorway, Structure 9 Luton-Dunstable Railway Bridge, M1, Caddington, Central Bedfordshire
- Reference:
- JLP01/08/054618
- Type:
- Photograph (Negative)