Simon Jenkins's call to replace Hammersmith Bridge to restore car traffic drew four sharply divergent letters to the Guardian, and the disagreement maps a fault line that runs through every infrastructure decision in London. The core question isn't engineering — it's allocation. Who gets the river crossing, and on what terms? Dr Richard Carter of Putney fires the opening shot: Jenkins, celebrated heritage defender, is arguing to demolish a Grade II listed structure to serve the motoring lobby. Carter notes that well over half of Hammersmith and Fulham households lack access to a car, that 12,000–15,000 people already use the bridge daily on foot and by bike, and that increasingly heavy cars caused the structural degradation in the first place. The circle is vicious: cars broke the bridge, now cars demand a new one. Julian Heddy of East Sheen takes the opposite view — seven years without vehicle access has created permanent traffic chaos on Upper Richmond Road and turned Putney High Street into rush-hour hell. He blames British heritage obsession for blocking even a temporary vehicle bridge, calling the pedestrian-only arrangement "misplaced nostalgia for Victorian engineering feats." The displaced traffic is real; the question is whether the solution is more road capacity or less car dependency. Charles Campion, chair of the Barnes Hammersmith Electric Light Transit group, delivers the most data-rich rebuttal. He reports that Hammersmith and Fulham council has already invested £55m in the bridge, that 15,000 people cross daily, that traffic on neighbouring bridges has actually decreased since the closure, and that Barnes's local economy is booming. His group is working with Ohmio UK on autonomous electric shuttles to fill the accessibility gap — a generative alternative to simply restoring the pre-closure status quo. The mayor's target of a 27% reduction in car traffic by 2030 makes reopening to motors a direct policy contradiction. Paul Martinelli of the City Bridge Foundation addresses Jenkins's suggestion that its endowment could fund a replacement. The Foundation maintains five Thames bridges — Tower, London, Southwark, Millennium, and Blackfriars — and its funds are legally restricted to those responsibilities plus charitable grants tackling London inequality. The endowment "is not a general fund for London's infrastructure," and Hammersmith Bridge sits outside its remit. This is not bureaucratic obstruction; it is the legal architecture of charitable trusts. The structural pattern here is familiar: car-centric infrastructure demands are presented as neutral common sense, while walking, cycling, and lightweight electric transit are framed as inadequate. Yet the numbers tell the opposite story — the bridge serves more people car-free than most London crossings serve in total, neighbouring traffic has fallen, and the local economy hasn't collapsed. The real extraction is that motorists who live elsewhere demand a crossing through a borough where most residents don't drive. London's fragmented governance — no unitary authority, no mayoral power to raise bridge finance directly — means every infrastructure decision becomes a multi-body stalemate. Heddy is right that no other European capital would tolerate seven years of paralysis. But the answer isn't necessarily another car bridge. It might be recognising that the accident of closure produced a better outcome than anyone planned.
