The incident reportedly occurred eastbound near the Posthouse roundabout (J38 Wrexham Road/A483). Where the incident has occurred. (Image: Google Maps)Traffic was backed up on the A483 approaching Posthouse roundabout following the incident. There was very heavy traffic on Wrexham Road in both directions close to Chester Business Park. Traffic joining the A55 at the Posthouse roundabout was reportedly halted following the incident - which witnesses said involved a HGV and car.