A year on, the Silvertown Tunnel is already proving its value.
It's helping cut journey times, reduce congestion at Blackwall and make cross-river travel more reliable.
It's also contributing to cleaner air, with harmful nitrogen dioxide concentrations down by up to 21%.
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Silvertown Tunnel cuts delays in first year, Transport for London says
The £2.2bn tunnel, which links Silvertown and the Greenwich Peninsula in east London, was designed to ease congestion.
