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A421

St Neots

Milton Keynes

Since 1996, three sections of a new A421 expressway have been built, progressively completing a fast route that serves to link Cambridge to Milton Keynes and Bedford to the wider world.

Routes

A421

M1 - A421 - A507

Ridgmont Interchange

Routes

A421

A507

Region

East of England

A1 - A421

Black Cat Roundabout

Routes

A421

Region

East of England

What's new

A walk on the M621

Fancy a stroll? In 1972, the City of Leeds was about to open its new South East Urban Motorway and proudly showed off the achievement with a "walkabout" event.

Surprise! A new motorway

Appearing unexpectedly on signs in Lincolnshire last week, a brand new motorway has suddenly come into existence. And it's a weird one.

Imperfectly Odd: the Strensham Loop

For a while, the M5 ended at a 270-degree loop - but long after the motorway was extended, it kept on catching drivers unawares. But it left behind an unexpected legacy of safer driving.

Have you seen...

Those last few miles of the M1 east of Leeds were completed in 1999. It looks for the most part like a fairly average piece of road, but one of the project's engineers describes some of the challenges that were faced.