Ruddlesden geotechnical

The Team

  • Simon Ruddlesden BSc (Hons). MSc. DIC. CGeol. FGS. EurGeol.


    A Chartered Geologist and European Geologist, Simon graduated from the University of Liverpool in Geology and Physical Geography, before working for a large site investigation contractor. He went on to obtain MSc Engineering Geology from Imperial College, London, and then worked for a small multi-disciplinary engineering consultancy in Exeter, where he successfully built and ran a geotechnical department.

    In 2004, he formed Ruddlesden geotechnical, where his knowledge of the geology in the South West together with his awareness of appropriate engineering solutions and communication skills has enabled the company to grow into a well-respected geotechnical and environmental site investigation consultancy.

    Simon is a Qualified Person for the CL:AIRE Definition of Waste: Development Industry Code of Practice (DoW CoP) and is also a trained mentor and scrutineer for the Geological Society of London's Chartered Geologist scheme.

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  • Tim New BSc (Hons). MSc. CGeol. FGS.

    Senior Engineering Geologist

    Tim, a BSc and MSc graduate from Southampton University, is Chartered Geologist and was Ruddlesden’s first engineering geologist, during the company’s formative years, following which Tim left to go travelling around Europe, before working for another geotechnical consultancy in Exeter.

    After this, Tim worked for several years with an international multi-disciplinary consultancy in New Zealand, primarily undertaking geotechnical investigations and assessments for the repair and rebuild of commercial and residential properties following the 2010/ 2011 Canterbury earthquake sequence. Having been seconded to New Zealand’s largest insurer, Tim has considerable experience of the insurance industry and expert witness cases.

    Tim has returned to the UK to work with Ruddlesden and brings with him a wealth of ground investigation and geotechnical expertise. He is responsible for project management, client liaison and signing off reports.  

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  • Charles Rafipay MESci. FGS.

    Senior Geo-Environmental Engineer

    An environmental geoscience graduate from Cardiff University, Charles worked in Swindon and Birmingham before returning to his home county of Devon. Charles carries out many aspects of geotechnical investigations and contamination assessments, but specialises in Phase 1 contamination assessments, contamination laboratory testing analysis, gas monitoring and ground gas assessments, and validation/ verification testing. Charles has developed particular expertise in site-specific human health contamination risk assessments and controlled waters (P20) risk assessments.

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  • Andrew Cole BSc (Hons). MSc. FGS.

    Engineering Geologist

    An MSc graduate in Applied Environmental Geology from Cardiff University, Andrew worked for a similar-sized company to Ruddlesden geotechnical in South East England, where his work included geotechnical investigations for basements in London. Andrew then went to work for a geotechnical consultancy in New Zealand, before joining Ruddlesden geotechnical, where he is involved in all aspects of geotechnical investigations and contamination assessments from desk studies to walkover surveys, trial pitting, logging and supervision of boreholes, conceptual models, foundation appraisals, risk assessments and interpretative reports. Andrew has particular expertise in the geotechnics of foundations, basements and retaining walls.

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  • Tony Borrell BEng (Hons). FGS.

    Engineering Geologist

    A first class honours graduate in engineering geology and geotechnics from Portsmouth University, Tony worked for an international off-shore and on-shore geotechnical investigation company and a regional piling contractor before joining Ruddlesden geotechnical. Tony is involved in all aspects of site investigation and contamination assessments including desk studies, walkover surveys, trial pitting, logging and supervision of boreholes, conceptual site models, foundation appraisals and risk assessments. Tony has particular expertise in landslides and slope stability, which formed the subject of his degree dissertation.

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  • Catherine Greed MSci. FGS.

    Engineering Geologist

    A first class masters graduate in geology from the University of Bristol, Catherine previously carried out work experience with Ruddlesden geotechnical. Primarily site-based, Catherine carries out much of the gas monitoring, in-situ soakaway testing in accordance with BRE 365 and Phase 1 Contamination Assessments. Catherine has developed strong working relationships with both clients and contractors.

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  • James Myles BSc(Hons). FGS.

    Engineering Geologist

    Since graduating from Plymouth University with James Walker, James Myles has worked for various geotechnical consultancies in the UK, New Zealand and Canada. This experience has exposed him to a wide variety of exploratory techniques and increased his awareness of their merits in differing ground conditions.

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  • Sarah Ruddlesden


    An essential part of the company since its formation in 2004, Sarah has arguably the most responsible position in in the company: making sure suppliers are paid correctly and on time and ensuring that clients pay us on time, as well as being responsible for staff payroll.

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  • Dawn Timlin


    An integral part of the team, Dawn has been with Ruddlesden since the early years. Dawn is more than just the voice of the company – she is the hub of the office – and carries out administrative duties, from initial enquiries through to the final production of reports.

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  • David W Allen MSc. BSc (Sp. Hons). CGeol. FGS.

    Freelance Engineering Geologist

    Working for Ruddlesden geotechnical on a part-time basis, David is a Chartered Geologist with more than 40 years' experience in engineering geology, geotechnical engineering and geoenvironmental projects.

    The majority of David's early career was based in the Midlands, where he acquired a specialist expertise in the research, investigation and remediation of land affected by past industrial mineral workings and mine entries.

    In recent years, David's work has included the investigation, remedial stabilisation works and management strategy for instability problems affecting earthworks and infrastructure on the mainline railway west of Exeter.

    David is now an integral part of Ruddlesden geotechnical’s accredited Company Training Scheme, being the Training Officer (the link between the company and the Geological Society of London), as well as a mentor to some of the more junior engineering geologists.

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Case Study

Plate Bearing Testing for Wind Turbine, Devon

Ruddlesden geotechnical have recently undertaken plate bearing testing at a number of farms in Cornwall to validate geotechnical parameters, provided as part of a previous geotechnical investigation, used in the design of the wind turbine.