A428 Upgrade

A billion pound scheme will improve journeys between Milton Keynes and Cambridge, bringing communities together and supporting long term growth in the region. 

We expect the road to open in 2027. Come back here regularly to check how the upgrade works might affect the journeys you have to make.

A421 and A1 Weekend Closure 15 to 18 August 2025. Follow this link for more details

This is the overall plan:

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