Скачать или смотреть HS2 completes key Colne Valley Viaduct span during three-week road closure

Harefield’s Moorhall Road has reopened after HS2 engineers completed a key span that will form part of the high-speed rail project’s record-breaking Colne Valley Viaduct.

Timed for the school summer holidays to reduce disruption for the community, the closure allowed HS2 to safely bring in cranes to lift eleven, 115- to 130-tonne segments into position over the road. These were then strengthened with internal steel cabling to complete the span.

Once complete, the viaduct will be the longest railway bridge in the UK, stretching for more than two miles (3.4km) across the Grand Union Canal, River Colne, local roads and a series of lakes on the outskirts of London between Ruislip and the start of the Chiltern tunnels.

To allow for the gentle curve of the viaduct, each of the one thousand segments that form the arches and deck are slightly different – and all are manufactured at a temporary factory set up close by, with direct access to the M25.

Find out more at: https://www.hs2.org.uk/building-hs2/v...

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