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Fugroâs leading expertise in over-water geotechnical characterisation has saved time, cost and congestion during riverbed assessment for Londonâs major sewer upgrade, the Thames Tideway Tunnel. The global geoscience leader recently completed two site investigation campaigns for Ferrovial Agroman and Laing OâRourke, the consortium undertaking construction of the projectâs central section for client, Tideway. Over a seven-month period work has included drilling, downhole geophysics and testing to depths of 80 metres to provide ground risk and engineering data along a 10-kilometre stretch of the river. Efficiency in cycle-time and river transit was crucial in delivering information from over 40 borehole and Cone Penetration Test (CPT) locations in tidal waters to suit the phasing of planning and design. The programme involved 55 bridge manoeuvres negotiating 12 of the Thamesâ most famous, but also structurally diverse bridges, between Blackfriars and Wandsworth. www.fugro.comÂ
