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A55 Eastbound and Westbound at J19 – Essential renewal of bridge expansion joints 29/01/21- 11/02/21

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Worn Expansion joint on the A55 at Junction 19

Where and Why?

The large expansion joints on the bridge have reached the end of their operational life and must be replaced urgently to ensure motorists’ safety and to avoid the need for an emergency closures.

It is estimated that over 370,000,000 vehicles have passed over these bridge joints  since the opening of the viaduct in 1991.

Work to carry out essential renewal of worn out bridge expansion joints at Glan Conwy Viaduct with closure of the East bound carriageway for one week followed by the closure of the West bound carriageway for one week will commence on the 29/01/2021.

These works were originally due to begin on January 15th. However, the joints for the work have been unavoidably delayed reaching the Port of Felixstowe and face further delay during unloading due to on-going disruption at the port. They are now expected to make their way towards the construction site in the next two weeks, with the work expected to begin on Friday January 29th. Contractors will be working 24/7 to complete the works on each side as quickly as possible.

The traffic management for this project will benefit from the installation of the new traffic control system and re-modelling of Junction 19 completed in December 2020. The traffic control system will be re-configured to balance flows and minimise disruption when traffic is diverted via the slip roads and the J19 roundabout.

Significant queueing and delay is expected at peak times especially on the A55 with moderate queueing expected at other times. Road users are asked to avoid travelling via Junction 19 of the A55 for all but essential purposes and to expect significant delays if they do travel.

Diversions and Safety Measures

There will be an initial over-night closure of the A55 East bound carriageway and East bound Off-slip at J19 to re-line the carriageway and slip road for the main diversion route. Traffic will be diverted at J18 East bound along A546 Conwy Road towards Deganwy and then via A547 through Llandudno Junction returning to the A55 at the J19 roundabout.

The main diversion route for the first week of works will be via J19 East bound Off-slip, J19 roundabout and J19 East bound On-slip. Traffic will be diverted as two lanes through the main diversion route.

At the end of the first week there will be a repeat of the initial over-night closure to reinstate the East bound carriageway and East bound Off-slip.
In the second week the West bound carriageway will be closed at J19 and traffic will be diverted as one lane via the J19 West bound Off-slip, the J19 roundabout and the J19 West bound On-slip.

Throughout this period one lane of the adjacent open carriageway will be closed over-night (20.00-06.00) to provide a safe working zone at the end of the bridge expansion joint in the central reserve.

A 40 mph temporary speed restriction will be applied to the open carriageway to provide a safe working area for contractors working close to the central reserve barrier on the closed carriageway.

The works are being carried out in January when traffic flows are historically lower to minimise disruption.

The project may coincide with the current period of lockdown, as current Welsh government regulations require people to stay at home as much as possible, only making essential journeys. As such the road is quieter than usual and the level of disruption to motorists in the area should be minimised.

We will monitor the traffic flow for the duration of the works to try and minimise disruption as much as possible and will continue to do so if traffic peaks alter after an easing of travel restrictions.

Programme of traffic management restrictions

Details of Restrictions Start Date & Time **  End Date & Time** Notes

Full closure of A55 East bound main carriageway at J19 

Traffic will be diverted via A55 J18 – A546 Conwy Rd - A547 Llandudno Junction –A55 J19

29/01/2021 20.00 30/01/2021 06.00
 
All Abnormal loads over 3.0m are prohibited from travelling along the diversion route

Full closure of A55 East bound main carriageway at J19 

Traffic will be diverted via A55 J18 – A546 Conwy Rd - A547 Llandudno Junction –A55 J19

04/02/2021 20.00
05/02/2021 06.00
All Abnormal loads over 3.0m are prohibited from travelling along the diversion route

Full closure of A55 East bound main carriageway at J19 

Traffic will be diverted via A55 J19 East bound Off-slip – A55 J19 roundabout – A55 J19 East bound On-slip

30/01/2021 06.00 04/02/2021 20.00
 
Traffic will be diverted as two lanes

Lane closure A55 West bound at J19

30/01/2021 20.00 04/02/2021 06.00 Night time closure only from 20:00 – 06:00 each night

Full closure of A55 West bound main carriageway at J19 

Traffic will be diverted via A55 J19 West bound Off-slip – A55 J19 roundabout – A55 J19 West bound On-slip

05/02/2021 20.00
 
11/02/2021  Traffic will be diverted as one lane
Lane closure A55 East bound at J19
 
06/01/2021 20.00 11/02/2021 06.00 Traffic will be diverted as one lane

Enquiries

For further information, please contact Traffic Wales on 0300 123 1213 or via Twitter @TrafficWalesN.


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