A406 Gunnersbury Avenue
From 20:00 on Saturday 2 until Thursday 7 November, the A406 Gunnersbury Avenue will be closed northbound between Chiswick Roundabout and Popes Lane, with a signed diversion route in place. This is due to emergency Thames Water works.
If you are driving through the area during this time, check before you travel, allow more time for your journey and consider alternative routes where possible.
(Taken from the TfL Website)