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We want to improve journey times between the River Dee and Northop Interchange.

First published:
28 September 2017
Last updated:


Project status: planned
Region/county: north east Wales
Cost: £250+m
Technical Advisors: Corderoy supported by Capita

Why we are doing it

The A494/A55 between the River Dee and Northop Interchange is a dual 2-lane road. It experiences congestion frequently.

The road experiences more traffic than it was designed for, and is below modern standards. It is poorly aligned and there is nowhere for broken down vehicles to pull off the road. Some of the junctions have slip roads that are too short or too close to the road, some of which have poor visibility. It is at these junctions that the majority of accidents occur.

The aims of the scheme are to:

  • improve capacity, reliability and journey times
  • improve safety
  • improve connections for businesses
  • improve access between residential areas and places of employment
  • reduce carbon emissions along the road
  • make more efficient use of the existing transport infrastructure.

We will minimize the impact of these improvements on local residents, the landscape, air quality, biodiversity and pollution.

Current progress

We have appointed Corderoy, supported by Capita as technical advisors to assist the Welsh Government to manage the delivery of the scheme.

They are now developing a procurement strategy to deliver the next phase of the scheme. This will allow the procurement of suppliers to commence in the autumn.

Preferred route

The scheme

The scheme consists of:

  • A new 13km two-lane dual carriageway, linking the A55-A5119 Northop Junction (Junction 33) with the A494 and A550 north of Deeside Parkway Junction, via Kelsterton Interchange and the Flintshire Bridge. This option is partly online improvement and partly new alignment. 
  • The scheme increases capacity along the existing A548, includes modifications and improvements to junctions and provides a new section of road between the A548 and the A55.


Procurement of suppliers: autumn 2019
Develop Preliminary Design, Prepare the Environment Statement and draft Orders: 2020/21
Statutory process: 2022/23
Detailed Design & Construction: 2023

How we are consulting

Stakeholder engagement will form a key part of the next stage of the scheme development. A public liaison officer will be appointed to lead the engagement and liaise with stakeholders. Public Information Events and Exhibitions will also be held to explain the next stages of the scheme.

Next steps

The next steps will be to procure suppliers to deliver the next phase of the scheme.

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