Transport for London (TfL) has unveiled plans to completely renew and strengthen the ageing Gallows Corner flyover, a crucial structure that serves thousands of Londoners daily.

Built in the 1970s as a temporary solution, the flyover is now in poor condition and requires urgent renewal to ensure it continues to function reliably for decades to come.

Due to its deteriorating state, speed and weight restrictions have been imposed on the flyover for several years to maintain safety. However, a comprehensive renewal project is now necessary to prevent future disruptions to the road network.

The major works will involve replacing the entire flyover structure, except for its foundations, which will remove the existing restrictions. This will lead to improved journey time reliability for motorists and ease congestion. In addition, new pedestrian and cycle crossings will be added, making the area safer for walkers and cyclists, while resurfacing and enhanced road markings will improve driving conditions.

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Key phases of the project include:

• March to June 2025: Lane closures will occur on various arms of the Gallows Corner roundabout to widen slip roads and divert utility services. The flyover will remain open, but there may be some overnight closures and temporary footway diversions.

• June to September 2025: The entire Gallows Corner junction, including the roundabout and flyover, will be fully closed to traffic, except for emergency services and TfL buses. Local diversion routes and temporary footway diversions will be implemented.

• September 2025 onwards: Overnight lane closures will take place at the Gallows Corner roundabout for resurfacing works, with the flyover remaining open.

TfL has scheduled the most disruptive phases of the project during the summer months when traffic volumes are typically lower, in a bid to minimise disruption. A dedicated traffic signal strategy will also be put in place to help manage traffic flow during the works.

Despite these efforts, the lane closures from March are expected to cause long queues and delays in the area. Commuters are advised to plan ahead and allow extra time for their journeys.

The project is being funded through the Department for Transport's Major Road Network Programme, with additional support from the Mayor of London. TfL is also working with the DfT on securing funding for future renewal projects, including those at Brent Cross and Croydon flyovers, and improvements at Catford town centre.