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Welcome to the Motorway Database. Here you'll find information on every motorway in mainland Britain - its length and route, its history, construction dates, useful web links, and of course a detailed strip-map of the whole road.
You can go straight to a motorway using the drop-down menu or find your way via a list. There's also the Chronology Maps, enabling you to see the motorway network develop year by year, and a guide to help you interpret Motorway Database pages.
Construction Timeline data
Each motorway has a Construction Timeline showing the opening dates for each section of its route. This information is sourced from data collected by Peter Hewitt and Tony Priest for the Motorway Archive project.