We're repairing the concrete structure of the A3 Dennis Roundabout and refurbishing and resurfacing the A3 between the Dennis roundabout and Woodenbridge footbridge, Guildford.
Start date May 2026 End date December 2026 

Latest updates

• 29 June 2026Full weekend closures
  The A3 will be closed around the Guildford area between Dennis Interchange and Stoke Interchange for following weekends in July.To note, the stretch will be closed for the whole weekend, not just overnights.
  
  • A3 Southbound - 9pm Friday 10 July to 6am Monday 13 July
    
  • A3 Northbound - 9pm Friday 17 July to 6am Monday 20 July Traffic will, once again, be diverted via Guildford town centre, following the same diversion that was in place during our night closures in June.
    Diversion route map
    Please remember that closures can change at short notice. You can check the latest information on our daily closures page. Our travel alerts give details of live incidents on our network.