Tender: Soil Testing and Agricultural Land Classification Surveys – Lower Thames Crossing (Roads North of the Thames)

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Balfour Beatty is seeking subcontractors for Agricultural Land Classification (ALC) surveys, soil texture testing and soil nutrient analysis as part of the Lower Thames Crossing Roads North of the Thames infrastructure programme. The package covers ALC surveys at predictive auger locations not previously assessed (including topsoil collection for texture testing), soil texture testing at existing auger locations lacking laboratory data, and topsoil and subsoil nutrient testing to inform habitat creation, Ancient Woodland translocation and agricultural land reinstatement. Subcontractors must follow DEFRA ALC guidelines and relevant British Standards (for example BS 3882), use ISO 17025 (or equivalent) accredited laboratories for testing, prepare and submit sampling plans, inspection and test plans and quality assurance documentation, and coordinate sample collection and delivery while complying with health and safety requirements. Interested parties must demonstrate proven ALC and soil testing experience on major infrastructure projects, technical competence to British and European standards, robust health, safety, environmental and quality systems, and appropriate certifications such as ISO 9001, ISO 14001 and ISO 45001. Respond to this notice by 25.11.2025 to express interest and receive further details including pre-qualification requirements and tender timelines.