Kamal Mattash is an Engineering Geologist at Mott MacDonald, specialising in geological and geotechnical data management and digital ground modelling. As part of the Beroun Tunnel project team, he contributed to the preparation of the Ground Investigation Report through geological modelling, data validation, and management of information from both historical records and ground investigation. He played a key role in integrating and interpreting large datasets, supporting the transition from the Historical Ground Model to the Ground Investigation Ground Model and strengthening confidence in the project's geological characterisation.