
The last false start came and went in the 1970s – killed off by the fuel crisis – but a decade later the political and commercial will came to the boil again.
Invited by the two governments, firms put forward a range of designs for a fixed link that was eventually whittled down to a shortlist of four.
Margaret Thatcher, then prime minister of the UK, was keen on a road link but in the end the winning project was the only one to feature rail only.
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 Euroroute had separate undersea tunnels for rail and road traffic  |