Transport for London (TfL) and Tarmac Kier Joint Venture (TKJV) have finished work to improve the northern and southern roundabouts at Lambeth Bridge.

Lambeth Bridge connects the London Borough of Lambeth on the south bank with the City of Westminster on the north bank. Its northern junction was reportedly the “most dangerous in London in terms of cycle collisions”.

To improve safety, TfL has replaced the roundabouts at either end of Lambeth Bridge with signal-controlled junctions, installed protected footway level cycle lanes on the bridge itself and invested in new signalised pedestrian crossings to improve pedestrian safety and access.

TKJV contract director John Coombes said: “These improvements have transformed Lambeth Bridge and the surrounding junctions for cyclists, pedestrians and drivers.

“Together with TfL and our partners, we’ve not only helped to futureproof Lambeth Bridge but have made it easier and safer for people to walk and cycle through the area by improving access and protecting vulnerable road users.”

A TfL statement said: “These changes will improve safety in the area, particularly for people cycling, who were involved in 22 of the 31 collisions at the roundabouts from 1 September 2021 to 31 August 2024.

“Tragically, there was also a fatal cycle collision at this location in 2015.”

TfL’s head of programme delivery Julie Lewington said: “By replacing the roundabouts with signal-controlled junctions, improving facilities for people walking and cycling, and upgrading essential infrastructure on the bridge, we are making this area safer and more accessible for everyone who uses it.

“Schemes like this are crucial to tackling locations with a history of collisions and ensuring London’s streets are safer for all.”

The Grade II listed bridge also required urgent maintenance, including waterproofing, bridge deck repairs and replacing temporary security measures with permanent measures, in keeping with the bridge heritage, to protect pedestrians and cyclists.

The bridge was designated part of TfL’s Surface Transport Asset Renewals Programme due to its ageing condition. In 2021, TfL Commissioner Andy Byford estimated that between £20M and £35M would be required for the bridge’s maintenance through 2028.

In May NCE reported, a temporary weight limit will be introduced on London’s Vauxhall Bridge from 1 July to “ensure safety for all bridge users”.

The new safety-critical 18t weight restriction will not include buses and emergency vehicles. A diversion route for vehicles above the limit will be put in place for those travelling both northbound and southbound.

Vauxhall Bridge – which connects Vauxhall in the London Borough of Lambeth with Pimlico/Millbank in the City of Westminster – carries 39,500 vehicles every day, of which only around 200 – around 0.5% of current traffic – are more than 18-tonnes and typically heavy goods vehicles.

Hammersmith Bridge was closed in April 2019 on public safety grounds after microfractures were identified. In April 2025, the carriageway reopened to pedestrians, cyclists, wheelchair users and e-scooter users, but it remains closed to road traffic.

Speaking in April 2026, Fleur Anderson, Labour MP for Putney, said: “This month marks seven years since Hammersmith Bridge was closed – seven years of disruption, frustration and avoidable hardship for residents across west London.

“The anniversary on 10 April was not a milestone that anyone wanted to reach, but it is a stark reminder of how long communities have been waiting for decisive action and how urgently a fully funded plan is needed to restore this vital crossing.

“It is a national disgrace that this issue is not being rectified.”

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