Watch the moment a Lorry carrying a huge digger crashes through ducting on the pavement, in Harefield. The lorry being escorted by police vehicles had just left the hs2 site on harvil road moments before the incident. The roundabout at Harvil Road/Moorhall Road was closed temporarily to allow the truck to turn, in an unfortunate and unavoidable chain of events, an ambulance responding to an emergency was delayed as it couldn't pass the lorry. Staff and escort did a good job at resolving the issu