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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


Works to upgrade the North Road cycle route begin on the 5th March 2018 and are due to take 24 weeks. 

Unfortunately, it will not be possible to keep the cycle route open for the duration of the works and signed diversions will be in place.

Three alternative routes are available for cyclists:

  • An on road diversion using Colum Road 
  • An off road diversion using Bute Park. This will be available for use at night, but the route is unlit. Cyclists using this route are advised to make sure they have appropriate lights fitted to their bikes in good working order 
  • Walk your bike on the footway on North Road 

Download the diversions map (1.88mb PDF)​​​​​​​​​Link opens in a new window

In October 2017 work started on the A468/A469 Pwllypant Roundabout which is estimated to go on for a period of 12 months. Caerphilly County Borough Council have advised this will lead to significant delays in the area. Full details and updates on the progress can be viewed on their websiteExternal 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 17th and Wednesday 18th July
Tuesday 16th and Wednesday 17th October
Tuesday 15th and Wednesday 16th January 2019

Westbound dates

Tuesday 12th and Wednesday 13th June
Tuesday 4th and Wednesday 5th September
Tuesday 13th and Wednesday 14th November
Tuesday 5th and Wednesday 6th March 2019  (Including Westbound Viaduct Closure from 9pm)

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