Sinkhole partially closes dual carriageway lanes

Lanes in each direction on a busy dual carriageway have been closed off after a sinkhole appeared in the central reservation.

National Highways discovered the defect on the A11 in south Cambridgeshire on Wednesday, between the junctions for Babraham and Six Mile Bottom.

A spokesman said: "While its primary location is under the central reservation it does spread to lane two on both the north and southbound carriageways meaning a closure had to put in place on both lanes."

Investigations into the cause of the sinkhole are under way and motorists have been warned to expect delays.

Craig Sowden, National Highways' operations manager for the east region, said: "Early indications suggest a drain could have collapsed or the subsidence could be related to a geological issue.

"This uncertainty means we are unsure whether a full closure of the southbound carriageway will be necessary.

"Our advice to road users would be to avoid the area or allow extra time for your journey if that is not possible."

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