Griffiths have been appointed by Welsh Government to undertake improvement works on the A55 at Abergwyngregyn, Gwynedd. The Design and Build contract will improve safety along a 2.2km stretch of the carriageway, between Junction 12 and 13 by removing direct access off the A55, as well as removing eight gaps in the central reservation, which currently allow slow moving agricultural vehicles to cross the A55.

The Project will also include over four kilometres of new and improved active travel facilities to encourage cycling and walking. This supports the principles of a low carbon society and will also reduce the risk of flooding the A55 through the construction of an improved drainage system, and a larger culvert for the Afon Wig, boosting the route’s resilience.

To minimise disruption, as much work as possible will initially be completed off the A55 including the construction of the 1.3km combined access and active travel route. To keep traffic moving on this key route, four lanes of traffic will be maintained during the daytime and construction is programmed to be completed by the Autumn of 2022.

For further information on the A55 Abergwyngregyn to Tai’r Meibion Improvements:

YGC Role: Employers Agent including NEC3 Project Manager, NEC3 Supervisor, along with a team of technical experts including Environmental, Drainage and flood risk, Structures, Pavement and Highway design. YGC were supported by Corderoy fulfilling the Quantity Surveying function within the Employers Agent’ team.

Griffiths: Design and Build Contractor fulfilling role of Principal Contractor and Principal designer.

Further information about the project can be found on the Griffiths Community Engagement information page.