HS2’s giant bridge building machine swings into action – video

Abstract

A 7,000t launching girder will install 1,000 individual segments across the 3.4km long viaduct route across a series of lakes and waterways between Hillingdon and the M25. The girder is named ‘Dominique’ in memory of Bouygues engineer Dominique Droniou who played a leading role in its design and development. Some 56 piers each weighing around 370 tonnes are being constructed. The project is being led by HS2’s main works contractor Align JV. The viad duct project is led by AlignJV – a team made up of Bouigues Travaux Publics, Sir Robert McAlpine and VolkerFitzpatrick.