Navigate Up
Sign In

My Neighbourhood

Use your postcode to find local councillors, facilities, school catchment areas and more.

Find facilities in my area

Roadworks and closures

Find out about the current roadworks and major activities scheduled on Cardiff roads.

There may be road closures in the City centre when major events are taking place​.

Visit Link opens in a new window  to view an interactive map with all of the live roadworks and closure updates in your area. 

Please note that you will need to zoom in to view the updates in your area.


You can also sign up to receive email alerts about upcoming roadworks and closures in your area through their website by clicking on the envelope icon.

Road closures


Llantrisant Road - from the junction with Heol Isaf to Cardiff Road - will be closed in both directions from 9.30am on July 22nd for approximately three weeks, so vital drainage works can be carried out on the carriageway.

During the closure, the contractor will be carrying out work between 8am and 10pm from Monday to Saturday and from 9am until 10pm on Sundays.

The three week closure is the maximum amount of time that the road will have to close and if the work is completed earlier, residents, businesses and the general public will be notified in advance via an update press release. The work has been scheduled during the summer holiday, as research shows that after children break up from school, the traffic flow reduces significantly.

The Council has put plans in place to minimise disruption to residents and businesses. These include:

  • The weight restriction on Heol Isaf will remain in place (except for the usual access arrangements).
  • The Council and our contractor have contacted businesses in the area and access will be maintained for both residents and businesses living or operating on Llantrisant Road from the junction with Heol Isaf to the junction with Heol St Y Nyll.
  • Residents who live in the Rhydlafar Estate will also be given access in and out of their properties, enabling them to travel along Croft-Y-Gennau Road to get to the south of the city.
  • All emergency services have been notified about the closure and protocols will be put in place to ensure that these services can operate effectively.
  • All bus operators have also been informed about the closure and any amendments to any services which usually use this route will be clearly advertised on the bus operator's website.
  • Access for both pedestrians and cyclists will be maintained throughout the road closure via a temporary bridge.

All electronic signs (VMS) will be used within the Cardiff and South Wales Trunk Road Agency (SWTRA) areas, so that advanced notice is given to all road users prior and during the road closure. A signposted diversion route will be in place. Those travelling north out of the city will be advised to travel along the A48 or use Heol Isaf to access the A470.

Those travelling into Cardiff will be advised to use the M4 motorway. All HGV traffic to current development sites will be diverted along the A48 from Western Avenue.

Download traffic management map (5.1mb PDF)​Link opens in a new window
Download HGV traffic management map (5.1mb PDF)​​​​​​​​Link opens in a new window

Night time closures will apply (7pm - 6am) for annual maintenance, testing and cleaning of the tunnels.


Eastbound dates

Tuesday 16th and Wednesday 17th April  2019
Tuesday 16th July, Wednesday 17th and Thursday 18th July 2019
Tuesday 15th October and Wednesday 16th October 2019 
Tuesday 14th January and Wednesday 15th January 2020

Westbound dates

Tuesday 11th, Wednesday 12th and Thursday 13 June 2019 
Tuesday 3rd  September and Wednesday  4th September 2019
Tuesday 19th November and Wednesday 20th  November 2019 
Tuesday 3rd  March and Wednesday 4th March 2020 (includes westbound viaduct closure​)

For more information please contact us.  Tel: 029 2087 3246