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A55 Junction 19 Glan Conwy Pinchpoint Scheme 16/06/20 - 16/10/20 24/7 Traffic Management

car on A55 junction 19 road

Where and Why?

Widening of circulatory, installation of Traffic signals and upgrade to the Street Lighting.

Diversions and Safety Measures

The works will be carried out during extended day shifts over the entire week during this current period of low traffic flows to reduce the disruption to the public. The traffic volumes will be continually monitored throughout the duration of the scheme to ensure that disruption to the public is reduced as much as possible.

Programme of traffic management restrictions

Installing narrower lanes on the Junction 19 circulatory, including a single lane closure on the A55 eastbound and westbound off slip.  There will be additional discrete areas of Traffic Management as the project progresses to accommodate some installation works as follows:

  Date    Time Traffic Management Measures
25/09/20 20:00 - 00:00 Single lane closure on entry to Llandudno Junction Industrial Estate with STOP GO boards Traffic Management
25/09/20 00:00 - 06:00 Access to Pabo Lane from Conwy Road Closed. Follow signed diversion.

28/09/20 – 30/09/20


No access around J19 circulatory. Diversion via A55 J18 and J20.

29/09/20  Daytime  10mph speed restrictions 
30/09/20    Daytime 30 mph speed restrictions in place on the eastbound off slip.


20:00-06:00 No access to Conway rd from junction 19 glan conwy interchange. diversion via A470. E/B and W/B off slips and main circulatory reduced to single lane.


20:00-06:00  No access from j19 circulatory to a470 northbound. Diversion via  junction 18.  E/B and W/B off slips and main circulatory reduced to single lane.
Weekend no night works planned
05/10/20 20:00-06:00 A55 westbound & eastbound offslip closed. No Access to A470 Southbound from J19. Resurfacing works taking place on main circulatory between Eastbound onslip and A470 Northbound from Black cat. Diversion route via A55 J18 and J20.
06/10/20 20:00-06:00 No access clockwise on circulatory between Eastbound on to Westbound off. Diversion via  J20
07/10/20 20:00-06:00 No access from J19 roundabout on to black cat roundabout. Diversion via Mochdre
08/10/20 20:00-06:00

No access to Black Cat Roundabout from J19 Glan Conwy interchange. Westbound off slip closed diversion via J20. 

09/10/20 20:00-06:00

No access to Black Cat Roundabout from J19 Glan Conwy interchange. Eastbound on slip closed. Diversion via A55 J20. 

11/10/20 20:00-06:00 Overnight closures to complete lining works. No access from black cat roundabout to j19 Glan Conwy interchange. Diversion via J18 & J20.  W/B off slip closed.
13/10/20 20:00-06:00 No access from J19 to A470 Conwy Rd South up to Black Cat roundabout
14/10/20 00:00-06:00 No access from J19 to Conwy Rd or Conwy Rd to J19 
15/10/20 06:00-00:00 No access to J19 roundabout from Conwy Rd, Welsh Fusiliers Rd or from Black Cat roundabout, diversions via J18 and J20 


00:00-06:00 No access to J19 roundabout from Welsh Fusiliers Rd, diversions via J18

Update 11.09.20

The initial phase of these works will be completed by October 9th 2020 subject to weather conditions. This is due to the amended work programme which was adopted to allow for more road capacity at this junction in response to the increase in traffic once travel restrictions were lifted.

Current traffic management measures will be removed from the A470 and the roundabout following the completion of this initial phase of these works. Current traffic signals will remain operational to manage traffic flows pending commissioning of the permanent signals.


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

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