The geotechnical team of Coffey, A Tetra Tech Company, in the United Kingdom provides all aspects of geotechnical, engineering geological, and geoenvironmental consultancy services for clients in Europe. 

Geotechnical Engineering

The core of our service is geotechnical assessment and design for infrastructure projects (road and rail), buildings, and land developments. Our specialists use a range of analytical techniques including numerical modeling to identify specific geotechnical design requirements. We provide geotechnical design services for foundations; soil and rock slopes; retaining structures; ground improvement; dams and reservoirs; marine and near-shore structures; deep basements; temporary works; and quarries, landfills, mines, and tailings dams. We also offer value engineering services, providing alternative design solutions for more cost-effective construction.  

Engineering Geology

Our engineering geology group specializes in inspection, hazard and risk assessment, and design of remedial works for steep soil and rock slopes, as well as the management of slopes, tips, and lagoons for quarrying. Our qualified rope-access specialists can physically assess, analyze, and monitor steep slopes with challenging access points. Coffey has sector-leading experience and expertise in analyzing and presenting data using advanced commercial and customized software. We have the thorough technical understanding and high-level IT capabilities required to collate, manage, and present surface mapping and 2D and 3D survey data. Our engineers and geologists combine these attributes to produce accurate 3D ground models depicting surface terrain, sub-surface stratigraphy, and geotechnical features.

Geoenvironmental Engineering

We combine our geotechnical and geoenvironmental skills to complete contaminated land feasibility studies, ground and groundwater investigations, risk assessments, engineering evaluations, detailed design of remedial works, and construction supervision. Our geoenvironmental engineering services can be applied to a broad range of scenarios including pre-acquisition assessments, standard site assessment, brownfield redevelopment, remediation assessment, and validation. We advise clients on contaminated land issues and provide expertise in technical, sustainability, and financial aspects of development and operation of modern waste disposal facilities. Our team has specialized expertise in issues related to landfills and industrial lagoons with complex geotechnics to accommodate hazardous or special wastes.

Expert Services

Our expert services include technical investigations and reporting, forensic engineering, advice on claims and contract matters, and assistance with adjudication. We also provide expert advice and expert witness services at public enquiries, arbitration, and High Court proceedings.

Related Projects

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Mainline trains using the constructed reinforced soil ramps.

Reading Station Elevated Railway

Designing reinforced soil retaining walls and a load transfer platform at the United Kingdom’s busiest railway interchange outside London

Bridge abutment under construction

M50 Phase 1 Motor Way Upgrade in Dublin, Ireland

Providing value engineering services to help save more than £5M for a complex motorway junction

The float out units for the tunnel sections.

Limerick Immersed Tube Tunnel, Ireland

Designing the geotechnical temporary works to support excavations for cut and cover sections of a road tunnel under a river