and the project, completed in February 1996 at a cost of £12.25 million, involved the world's largest sideways bridge slide at the time for the 410 m, 5,500 tonne bridge. This required the road to be closed for only 48 hours, which won it an AA National Motoring Award in 1996 for innovation and minimisation of traffic congestion.

The road widens to a three-lane dual carriageway for the Plympton bypass. This opened in 1971 and was the first