SCOPE OF WORK Harrison Group Environmental was engaged as KOSTA JV’s geotechnical engineer for the project, supervising site investigations, carrying out ground modelling and developing geotechnical design, as well as providing construction advice. Ground investigation A ground investigation was undertaken in summer 2014, comprising: • Four boreholes to a maximum depth of 33m, with undisturbed Shelby thin wall samples and SPTs • Six plate load tests at ground level, with an additional test at 0.75m depth, with trial pits excavated to 4m at each location Ground conditions comprised a crust of made ground and alluvium overlying soft to very soft alluvial clays, silts and fine sands, with Lower Coralline Limestone at depth. The buried channel is up to 31.5m deep, with an 11m

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