HS2 begins assembling UK’s first offsite viaduct as cost of delays revealed

By Daniel Gayne2023-06-23T06:00:00

Artist's impression of the Thame Valley Viaduct in ten years time

Phasing delays estimated to cost taxpayer £366m

Assembly of the UK’s first major railway viaduct to be manufactured entirely off-site has begun in Buckinghamshire.

The 880m-long Thames Valley Viaduct will eventually carry HS2 services over the flood plain of the River Thame, just outside Aylesbury.

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