National Highways has informed Richard of the following weekend closures from 6am Saturday 4th July to 5am Monday 6th July 2026 for drainage works:
- A1 northbound between Tempsford and Black Cat
- A1 southbound between Wyboston and Tempsford
- A421 westbound between Black Cat and Renhold
- Bedford Road from Roxton Garden Centre to Black Cat
Please follow the designated diversions:
A1 northbound and southbound:
- from A1 northbound, exit at Tempsford Interchange onto St Neots Road
- take A428 west towards Wyboston
- re-join A1 northbound at Wyboston Interchange
A1 southbound traffic to use the same diversion route in reverse.
A421 westbound:
- continue on A1 southbound towards Sandy
- at Sandy roundabout, take A603 towards Bedford
- re-join A421 at Cardington Interchange

Bedford Road:
- take Bedford Road towards Great Barford
- join A421 eastbound at Renhold Interchange
