Motorists heading for one of north London’s busiest junctions are being urged to brace for heavier traffic and longer journeys, as Transport for London issues a fresh warning over weeks of lane closures and overnight shutdowns around Brent Cross.
The alert covers the A41 Brent Cross flyover and the A406 North Circular, where engineers are deep into a major programme to renew and strengthen the ageing flyover. With restrictions biting through October and into November, TfL says drivers — including the thousands who flock to Brent Cross Shopping Centre — should allow extra time, consider different routes, or leave the car at home altogether.
Lane closures in force now
Since the start of the month, the A41 Brent Cross flyover and its approaches have been narrowed to a single lane in each direction, a squeeze that remains until 28 October. A separate lane closure is also in place on the westbound A406 North Circular between Brent Street and the exit slip for Brent Cross Interchange, running from 1 October until 13 November.
From 29 October, the flyover moves into a contraflow arrangement, keeping one lane open each way while the work continues. The disruption is part of a £10.8 million, two-year repair scheme that began at the end of September — the full background is covered in our earlier report on the flyover works.
Overnight closures: the dates to know
The next phase brings a string of night-time shutdowns. The A406 beneath Brent Cross Interchange will close in both directions between 10pm and 5am on Tuesday 13, Wednesday 14 and Thursday 15 October while concrete repairs are carried out.
Two further overnight closures are planned for the westbound A406 on Thursday 12 and Friday 13 November, affecting the stretch between the exit and entry slips for Brent Cross Interchange. Traffic will be sent up and over the interchange while the restrictions are in place. Signed diversions will operate throughout, and TfL says additional overnight closures may yet be announced.
Brent Cross roadworks: key dates at a glance
- 1–28 October: A41 Brent Cross flyover and approaches reduced to one lane each way
- 1 October–13 November: lane closure on the westbound A406 between Brent Street and the Brent Cross Interchange exit slip
- 13–15 October, 10pm–5am: A406 closed in both directions beneath Brent Cross Interchange
- From 29 October: contraflow on the A41 flyover, one lane each way
- 12–13 November, 10pm–5am: westbound A406 closed between the exit and entry slips
Shopping centre stays open — but expect queues
The works do not mean Brent Cross Shopping Centre is closing its doors, but anyone driving there should expect slower journeys — particularly at peak shopping and commuting times. Visitors heading to the centre’s newest stores may want to factor the works into their plans.
Bus services will keep serving the area, although some journeys may take longer as traffic backs up. Tube and rail services are unaffected, and TfL is encouraging shoppers to consider public transport rather than driving where they can. Pedestrians should also note that the Brent Cross footbridge is currently shut for repairs.
Why the flyover is being rebuilt
The disruption is the price of a long-overdue renewal. The A41 Brent Cross flyover sits on a strategic corridor connecting the M1, the A41 and the A406, and engineers are carrying out structural repairs alongside a new waterproofing system designed to extend the life of the crossing.
Once the work is complete, TfL expects to lift the 7.5-tonne weight restriction currently in force on the flyover, reopening the route to heavier vehicles. The wider programme is expected to run for up to two years, and TfL says the investment should cut the risk of the sudden emergency closures that cause the worst kind of gridlock.
Getting around the works: our advice
Drivers simply passing through — travelling between Brent Cross, Staples Corner and Henlys Corner without stopping — are being encouraged to give the area a wide berth where possible. For longer journeys around the capital, the M25 may prove quicker than threading through north London, while local trips could be faster on foot, by bike or on public transport.
TfL’s own advice is to check its dedicated Brent Cross flyover renewals page for the latest confirmed closures and diversions before setting out, and to build generous extra time into every journey while the restrictions bite. The Hendon Way stretch of the A41 has seen its own share of closures this year, so drivers should expect the wider area to remain busy.
With the festive season approaching — when the works are due to pause to keep the shopping centre accessible — the message is simple: plan ahead now, and the next few weeks will be a lot less painful.
