Peterborough motorists warned of closure on Black Cat Roundabout on A1 this weekend

Our upgrades at Black Cat roundabout 🏗️👷 We've recently made changes to the road layout at Black Cat roundabout. This is part of our work to upgrade the roundabout into a modern three-tier junction. The layout switch allows us to start work on building the A421 flyover bridge and the process of lowering the A1 carriageway. Once open in spring 2027, A1 traffic will flow freely below the junction in a purpose built cutting, while traffic on the A421 will travel over the junction on a new flyover

Lowering the A1 carriageway at Black Cat roundabout 🏗️👷‍♀️ Over the past few months, our team has stepped up construction in the centre of the Black Cat roundabout as we start lowering the A1 carriageway. Our Site Agent, Luke, gives an inside look at what’s happening on site and what’s coming next. | A428 Black Cat to Caxton Gibbet