WORK on improvements to the A55 will start in the new year.
As a result of more than £25m of capital investment from the Welsh Government announced in last year's budget, and a further £17m announced in October, a series of works will be carried out to improve the safety of the A55.
Work will begin at the Penmaenbach tunnel in January, with one lane closed for up to seven days.
Improvements will include a public address system.
Improvements will be made to the Conwy tunnels in February and March, bringing them in to the line with European safety standards.
Transport Minister Edwina Hart said: “Both the Conwy Tunnels and Penmaenbach Tunnel are feats of engineering but more than 20 years on both need investment to maintain them for the decades to come."
“The work is also carefully timed so that it’s carried out during the winter months which are the quietest on the road in order to reduce any disruption.”