Image copyright PA Image caption London-bound traffic, right, was restricted to two lanes with a 50mph speed limit
A motorway is to close at night for more than two weeks to remove barriers installed in case of a no-deal Brexit.
The M20 in Kent will close at 20:00 on Monday between junctions seven and nine until 06:00 on Tuesday.
The same stretch of the London-bound carriageway only will be closed overnight for 15 nights from Tuesday, with diversions in place.
The work will return the M20 to its normal state for the first time since Operation Brock was introduced.
Under Operation Brock, one carriageway was to be reserved for HGVs heading to Dover, with all other traffic restricted to a contraflow system on the opposite side.
It was intended to deal with tailbacks caused by any customs delays experienced by hauliers in the event of a no-deal Brexit.
Image copyright PA Media Image caption Operation Brock would have seen one side of the M20 used only by HGVs heading to cross-Channel ports
Highways England said work had been “carefully planned to limit any disruption,” with about 1,500 metres of barrier removed each night.
Ashford MP Damian Green said he was “delighted” the “wretched barriers” would be removed.
Operation Brock, installed in March, was stood down when Brexit was delayed last year, leaving coast-bound traffic free to use