A55 flood road work gets underway near Bangor, Gwynedd

A55 Both carriageways on the A55 were completely submerged in November's flooding

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Road works have started on the A55 dual carriageway near Bangor, following flooding that left motorists stranded for hours.

The deluge in November closed the road between Llandygai and Abergwyngregyn for 12 hours, with many left facing a 50-mile diversion.

The Welsh government announced in December that it would spend £3m to improve drainage in the area.

The work on the A55 is expected to last eight weeks.

The incident sparked fierce criticism from residents, politicians and the chief executive of the north Wales Betsi Cadwaladr health board.

'Vital link'

Mary Burrows wrote to government officials warning that the road closure "put at risk our ability, with the ambulance service, to provide continuity of service".

Announcing the new investment in the trunk road in December, transport minister Carl Sargeant said the flood event on the A55 had been "unacceptable".

"The A55 plays a vital role for the economy of north Wales. We will be doing all that we can to avoid similar situations arising in the future," he said.

A spokesperson for the government said work began earlier this week and would last for about eight weeks.

"The work will include drainage investigations and where necessary the repair and the replacement of the existing drainage systems," said the spokesperson.

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