Project Overview

The A55 junctions 15 and 16 are the only two roundabouts on the Euroroute E22 Trans-European Transport Network (TEN-T). This causes problems to the traffic using the A55 travelling along the route. The purpose of the project is to remove the two roundabouts at A55 junctions 15 and junctions 16, and replace them with upgraded height separated junctions. The Schemes would include improvement works to Junction 14, 15, 16 and 16A.

Map of junctions 14, 15, 16 and 16A

Location of A55 Junctions 14/15 & 16/16A Improvements

Extensive work has been carried out considering road safety along the A55 Trunk Road, near to Llanfairfechan, Penmaenmawr and Dwygyfylchi, dating back to 2005. Options for transport interventions and other associated transport measures were appraised in studies carried out by Capita in 2005, Atkins between 2008 and 2011, and more recently by Ramboll since 2017.

Historically, the schemes at Junction 15 and 16 have been referred to collectively as the ‘Junction 15 and 16 Improvements’. Since the Statutory Processes for each junction are being conducted independently of one another and because of the proposed minor improvements to the Junction 14 layout, a decision has been taken to rename the draft Orders, associated Environmental Statements and reporting as follows; the Junction 15 Scheme is now known as the Junction 14 and 15 Improvement Scheme. The Junction 16 Scheme is now known as the Junction 16 and 16A Improvement Scheme.

We have secured £26m of European Union funding support to deliver these junction improvements in Conwy. Construction is scheduled to start in 2021, with the new improved sections of roads opening in 2023.


View east from Junction 14 overbridge along A55 road corridor

View east from Junction 14 overbridge along A55 road corridor

View west to the existing Junction 15 roundabout at Llanfairfechan from the pedestrian footbridge

View west to the existing Junction 15 roundabout at Llanfairfechan from the pedestrian footbridge

View west to the existing Junction 16 roundabout towards Penmaenmawr

View west to the existing Junction 16 roundabout towards Penmaenmawr

Photo of Existing A55 Junction 16A at Dwygyfylchi

Photo of Existing A55 Junction 16A at Dwygyfylchi

Why are we doing it?

The new junctions will mean that traffic will not need to slow down at the roundabouts, reducing delays. The removal of the roundabouts will also make the junctions safer both to traffic travelling along the A55, and for people wishing to enter and leave the A55 at these locations. The project will also address a number of substandard features of the trunk road in the vicinity of the junctions.

These changes will:

Engagement and consultation

The wider public has been informed about the proposed scheme via a full Public Consultation exercise held between June and August 2018 and two sets of Public Information Exhibitions held in December 2017 and June 2019, following the announcement of the preferred options on 5 April 2019.

Issues raised during these consultations have been considered during the design process and as the draft Orders have been developed since the announcement of the preferred option. There has also been continued stakeholder engagement via the Public Liaison Officer and the project team.

How can I find out more?

A Scheme Assessment Report and Environmental Statement Non-Technical Summary have been produced for each junction. These provide further information about the background to the project, the appraisal, along with the proposals for each junction. Copies of these documents can be found in the online Document Library.

Further information can also be found by exploring the project Online Engagement Hub or by contacting the project team for Help and Support.