A55 Llanddulas to Pensarn maintenance, Conwy, North Wales
National Assembly for Wales Transport Directorate
Contract value:
Capabilities: Highways
Highways
Surfacing & soil stabilisation
Surfacing & Soil Stabilisation m
Work was carried out on the A55 trunk road between Llanddulas and Pensarn – the only remaining section of the A55 that failed to meet carriageway standards.
The scheme increased the lane widths to current standards, and included the creation of a hardened central reservation, improved drainage and additional communication ducting.
The whole carriageway construction was replaced and finished with thin-coat SMA surfacing course to reduce road noise and improve surface drainage.
Extensive “soft-spots” were found under the existing carriageway, which extended the contract into the period of heavy summer traffic, but careful traffic management allowed two lanes to stay open on both the eastbound and westbound carriageway – preventing serious traffic congestion.