The Mancunian Way opened in 1967, putting a highway on stilts round the southern half of Manchester city centre. Two years later the road gained an award from The Concrete Society, but the most famous feature of the A57(M) is its slip road to nowhere. This would have sent eastbound traffic north into town along Upper Brook Street, which is one way in the opposite direction. Either the contractors failed to realise this, or there were plans to make Upper Brook Street two way that never made it off the drawing board. Nowadays the slip road stub makes a handy refuge area for anyone unlucky enough to break down on such a busy bit of road.
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