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Traffic Wales information line 0300 123 1213
The Welsh Government’s traffic information service for motorways and trunk roads in Wales

FAQs - A55 J33 Northop to A494 St David’s Eastbound and Westbound Carriageway Re-surfacing Works.


The works include the removal and replacement of the surface course and stabilisation of the underlying pre-existing concrete pavement.


The works are required, as the road surface has reached the end of its serviceable life. We are also stabilising the concrete road layer under the road surface. Once resurfaced, the new surfacing will have none of the existing transverse joints, which cause unacceptable amounts of noise when trafficked.  The work will also mean far fewer unplanned closures for emergency repairs, which are becoming ever more frequent.

For this project, full overnight carriageway closures of each direction in turn with traffic diversions or daytime lane closures with slip road closures are required in order to undertake the works in a safe and efficient manner, both for the workers on site and the travelling public. Other options such as lane closures and contraflow arrangements have been considered very carefully, however these have been discounted on this occasion due to either increased safety risk or greater levels of disruption on the wider road network.  By using a full carriageway closure of each direction in turn, it will also allow work to be carried out on both lanes of a single direction concurrently, which will reduce the overall project duration.


Exceptionally this work is being carried out in May and June this year as traffic levels are currently extremely low, because of the requirement for essential travel only. Originally this work would have been carried out after the summer embargo. Workers will be following strict social distancing at all times, and will be adhering to the relevant regulations.

Between Monday and Friday evening, during the daytime, there will be a lane closure in operation. The lane closure will be installed in the interests of public safety. Every effort will be made to undertake other activities including the resurfacing of the affected slip roads during these periods to ensure that the work is undertaken as efficiently and safely as possible.

As the work involves the full width of each carriageway in turn, the diversion route to be used during the closures start and end between Deeside Park interchange and J33 Northop respectively for Westbound and inversely for Eastbound.  Therefore, to sign the diversion from this point ensures that the majority of the traffic follows the diversion route.  However, local access to other interchanges up to and including St David’s will still be possible. These diversions will assist with the safe and efficient running of the site during the overnight and weekend closures, resulting in the section of carriageway between A55 J33 Northop and A494 St David’s interchange being utilised for this purpose.

A contraflow system has been carefully considered. However, due to the complexities of the junction with the A494 at Ewloe and the potential for significant delays and accidents, this option was not deemed suitable.

Unfortunately, as with any construction project, there is a certain amount of noise emission that cannot be avoided. However, the contractor will make every effort to minimise noise emissions during night time operations as far as is practicable but it cannot be guaranteed that residents will be unaffected by noise levels to some extent.  It is of significance that those likely to be most affected by the night-time works noise will ultimately benefit from less noise when the works are complete, particularly the noise created by the current construction joints about which we have received many complaints.

Unfortunately, there are several areas of worn out carriageway (with concrete underlay) within the A55 Ewloe to Broughton and A483 Pulford to Wrexham areas that will require this treatment over the next few years. As areas are completed, the risk of emergency repairs will be significantly reduced and the running surfaces will be safer and quieter.

We have liaised closely with the local authority to ensure the most suitable diversions routes are used and to manage the routes throughout the period of the works effectively.


The alternative routes, which will be signed as appropriate, will vary depending upon destination and when a particular length of trunk road or slip road is temporarily closed to traffic.


These alternative routes will involve the A5119; A548; A55; A494; B and unclassified roads, with diversion signs in place.

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