Brian Gash & Sonja Trewavas

Highways England & Atkins

Brian Gash: Senior Project Manager for Highways England is Chartered with the Association of Project Management with over 35 years of working in the civil engineering industry. Experienced in Traffic, Transportation, Highways, Planning, and construction. Strong development professional with a Post Graduate Certificate in Leadership and Management from University of Sussex. Graduate of the Roads Academy which is a cross-sector leadership development academy.

Sonja Trewavas: Chartered Scientist and Principal Environmental Consultant with first degree in Environmental Analysis, an MSc in Contaminated Land Management and over seventeen years environmental consultancy experience. Her core area of expertise is quantitative risk assessment related to contaminated land, although she also has extensive experience of managing and conducting field and desk-based investigations of soil gas and vapour assessments and the preparation of remediation strategies, options appraisals, verification plans, verification reports and land quality (geology, soils and hydrogeology) technical chapters for EIA submissions.

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Land Quality Considerations for Infrastructure Design and Construction

Presentation and examples of the Highways England Project Control Framework considerations for land quality and its impact on sustainable and cost-effective infrastructure, in the development of the design and construction.