A major road linking parts of west London will be partially closed for three months as vital maintenance work takes place.

The A40 Westway, described by Transport for London (TfL) as one of London’s busiest roads, will undergo “critical safety maintenance” starting from Sunday (July 21) at 10pm.

This will continue up until mid-October, interrupting travel along the road between Wood Lane and Marylebone, which carries 90,000 vehicles a day.

Dating back to 1969, the flyover is reaching the “end of its serviceable life” and TfL says it needs critical work to make sure it can serve Londoners for decades to come.

TfL will be replacing four joints that provide support to slip roads to the A40.

Road closures are reportedly essential for the work to take place, and TfL says it has timed it to minimise as much disruption as possible by doing so in the summer period.

What road closures can I expect?

There will be two phases to the project.

Starting from July 21 to August 22, the eastbound slip road from Westway Roundabout and the A3220 West Cross Route southbound between the Westway Roundabout and Holland Park roundabout will be closed to all traffic.

Then from September 2 to mid-October, the westbound slip road from the A3220 West Cross Route to the A40 Westway via Westway Roundabout will be closed.

The West Cross Route from Holland Park Roundabout to Westway Roundabout will also be closed to northbound traffic.

It’s expected that diversion routes and local roads will be extremely busy and motorists should plan ahead.

Work will be paused during the Notting Hill Carnival, taking place August 25 and August 26, to minimise disruption.

What has TfL said?

Stuart Harvey, TfL's chief capital officer, said: "We're determined to ensure a safe and well-maintained road network can play a full role in enabling Londoners to travel across the capital. 

“These ageing 1960s structures are reaching the end of their serviceable life and road closures are essential if we are to ensure they can continue to serve Londoners for decades to come.

“We recognise that these closures will have a significant impact on people travelling in the area and are working hard to minimise disruption as much as possible, including by rescheduling other work and reviewing traffic signals.

“I'd like to thank people in the area for their patience and would encourage everyone to plan ahead for any journeys in the area."