A1 Alconbury to Brampton road markings and maintenance - March to May 2026

We start work on Monday 2 March and expect to finish in May 2026.

We'll work overnight (8pm to 6am) for the first three weeks, weather permitting.

Closures

Monday 2 to Wednesday 11 March - A1 southbound from Alconbury to Brampton

Closed overnight (8pm – 6am).

Diversion –

• take the exit slip road at junction 23
• at the roundabout, take the third exit onto the A141
• at Brampton Hut Interchange roundabout, take the first exit back onto the A1

A1 southbound Alconbury to Brampton diversion map.

Thursday 12 to Friday 20 March - A1 northbound from Brampton to Alconbury

Closed overnight (8pm – 6am).

Diversion –

• at Brampton Hut Interchange roundabout, take the third exit onto the A141
• at the next roundabout, take the first exit onto the A1307 at junction 23
• continue on the A1307, which merges back onto the A1

A1 northbound  Brampton to Alconbury diversion map.

Please remember that closures can change at short notice. You can check the latest information on our daily closures page or find live travel information on our Traffic England site. Our travel alerts give details of live incidents on our network.