when was it built?
Between 1962 and 1970
Westway (London)
between 1962 and 1970 
what is westway? It is an elevated dual carriageway section of the A40 trunk road in West London
wiki:12106877
Westway (London) [SEP] Introduction
The Westway is a elevated dual carriageway section of the A40 trunk road in West London running from Paddington in the east to North Kensington in the west. It connects the London Inner Ring Road to the West London suburbs. The road was constructed between 1962 and 1970 to connect the proposed London Ringways motorway scheme to Paddington, and opened as the A40(M). It was the first urban motorway project in London and attracted criticism for the lack of care over the environment, the well-being of local residents and communities, and handling those whose homes would be demolished. Road protests increased following its opening.