The A3 at Tolworth could be moved underground to free up land for development, the Mayor of London has said.
Boris Johnson made the announcement during a trip to Boston, Massachussetts. The junction, currently a traffic hotspot and easily congested, is one of five locations across the capital which could be sunk into an underground tunnel. The others are the A4 in Hammersmith, the A13 in Barking Riverside, the A316 at Chalkers Corner and the A406 in New Southgate.
A concept drawing shows the proposed tunnel would extend from the roundabout at Tolworth Tower to beyond Princes Avenue to the west. Princes Avenue appears to continue across the A3 towards the train line, and into the former government land that Tesco plans to build on. A smaller road would be built on top of the tunnel, according to the image.
City Hall claimed that decking over the A3 would reduce “severance” – the separation of communities by transport infrastructure and traffic – and provide new land for homes.
Transport for London will draw up more detailed plans, including for funding, with Kingston Council before reporting back to Mr Johnson in May.
Land just off the A3 roundabout, on the old Toby Jug site, is already the subject of heated debate over redevelopment. Tesco spent a decade trying to build a supermarket and flats on the site, but was repeatedly rebuffed by Kingston Council. Its current plans are for a “residential-led” development of some 800 homes.
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