Projects · Transport
New A428 dual carriageway between the Black Cat roundabout (near St Neots) and Caxton Gibbet, Cambridgeshire/Bedfordshire·Under wayTransport
A428 Black Cat to Caxton Gibbet improvements
- StageUnder construction; several new links and the Cambridge Road junction open
- ValueAround £1 billion
- Next milestoneMost of the scheme due to open in spring 2027 and the final phase (A1 underpass) in mid-summer 2027
- Last checked1 November 2026
What has changed on this project, and when
- Next milestone: Most of the scheme due to open in spring 2027 and the final phase (A1 underpass) in mid-summer 20272 November 2026 · previously: Most of the scheme due to open in spring 2027 and the final phase in mid-summer 2027
- Next milestone: Most of the scheme due to open in spring 2027 and the final phase in mid-summer 202727 October 2026 · previously: Road expected to open in 2027
- Stage: Under construction; several new links and the Cambridge Road junction open27 October 2026 · previously: Under construction; Black Cat free-flow links, Roxton link road and Cambridge Road junction open; full opening spring 2027
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