The A2 between Upper Harbledown and Brenley Corner near Faversham is closed tonight to allow for urgent road works.
Highways England has closed both carriageways to mend potholes which opened up following the cold weather at the start of the month.
The road is closed in both directions until 6am tomorrow (Thursday) morning. The coastbound carriageway will be closed again on Thursday night.
Signposted alternative routes have been set up.
Former Canterbury city councillor and Kingston resident Mike Sole said: “At long last these dangerous potholes are being filled.
“Would it be too much to ask that the litter is strewn through the verges and central reservation is cleared at the same time?”