One lane has now been opened on the M2 after a 15ft sinkhole appeared in the central reservation.
The motorway had been closed since Tuesday but the hard shoulder was opened this morning at 6am for motorists to use.
Pea-shingle is being used to fill the sinkhole, which appeared between Sittingbourne and Faversham.
The two main lanes are still shut and delays are to be expected.
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Fog is affecting Southern England this morning causing delays to flights, ferries and the road network.
Tuesday's weather for the east of the region
Tuesday's weather for the west of the region