Essential works and maintenance on A4 Great West Road

TfL are carrying out essential maintenance and refurbishment works on the A4 Great West Road, between Hogarth and Chiswick Roundabout. At times, traffic lanes on the A4 will close, and at other times the road will be closed fully in one direction between Chiswick roundabout and Hogarth roundabout.

Full details about these works are available on the Transport for London website.

TfL began the final Phase 3 of these works on Saturday 5 November and will work using the lane restrictions and road closures detailed in the table below.




  • Two eastbound lanes open between Chiswick Roundabout and Hogarth Roundabout
  • Slip road to join the A4 eastbound at Chiswick roundabout will be closed 

7 November until 9 December

24 hrs a day

After Phase 3, TfL will introduce two full directional weekend closures on the A4 eastbound between M4 junction 2 and Hogarth Roundabout to enable TfL to complete works and safely remove traffic management.

  • From 11pm on Friday 9 December to 5am on Monday 12 December
  • From 11pm on Friday 16 December to 5am on Monday 19 December

TfL will make every effort to finish the works on time, although poor weather conditions or unforeseen circumstances may mean they need to reschedule at short notice.

No works will take place over Christmas and New Year weekends

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