A £10 million renewal of the Hendon Way flyover at Brent Cross — the North Circular crossing used by 120,000 vehicles a day — begins on Wednesday night, with drivers warned to expect disruption until 2028.
The flyover carries the A41 Hendon Way over the North Circular (A406) at Brent Cross, in the London Borough of Barnet, and is one of the busiest road structures in the capital.
Concerns about the condition of the ageing structure led to a 7.5-tonne weight restriction being imposed, and Transport for London (TfL) says the renewal programme will strengthen the flyover, replace its safety barriers and carry out waterproofing work.
TfL describes the crossing as a “vital strategic route” and says the works will reduce the risk of future unplanned closures and emergency repairs. The transport body secured £10.8 million from the Department for Transport for the first stage of the project earlier this year.
From Wednesday 30 September, the flyover will be reduced to one lane in each direction as the main works get under way.
Lane restrictions will then be in place on the A41 from Thursday 1 October until Wednesday 28 October, before a contraflow system is introduced on the flyover from Thursday 29 October. Traffic will continue to run in both directions throughout, but with significantly reduced road space.
Overnight closures drivers need to know about
A series of overnight closures, all running from 22:00 to 05:00 with signed diversions in place, will allow the works to progress:
- Wednesday 30 September: A406 North Circular, overnight 22:00–05:00
- Thursday 1 and Friday 2 October: A41 Hendon Way southbound, from the Vivian Avenue junction to The Vale junction, 22:00–05:00
- Monday 5 and Tuesday 6 October: A41 Hendon Way northbound, from The Vale junction to the Vivian Avenue junction, 22:00–05:00
Drivers are advised to plan ahead, allow extra time for journeys and follow the signed diversion routes during the closures.
The full renewal project is due for completion in 2028, meaning almost two years of phased disruption for one of north London’s key road corridors.
Anyone who uses the crossing regularly is urged to check TfL’s dedicated page for the works before travelling, as dates and arrangements may change.
It comes as London’s transport network endures a difficult weekend, with London Victoria station closed after a track fire halted every train.
Drivers are no strangers to disruption this weekend either — the M25 was shut anticlockwise between Potters Bar and South Mimms after a vehicle fire.
Motorists planning long detours may want to brush up on the M25’s quirks — including the stretch where it technically becomes the A282 at the Dartford Crossing.
