This report provides a comprehensive overview of civil engineering practices, focusing on earthworks, substructures, site safety, and infrastructure design. It begins by explaining common methods and techniques used in earthworks, including excavation, loading, and hauling, as well as techniques for piling works, foundations, and drainage. The report then delves into site safety, presenting a safety plan, risk assessment, and method statement for various civil engineering activities, including excavations and work in restricted places, while also addressing relevant health and safety legislation. Furthermore, the report evaluates a given civil engineering problem, exploring environmental, geotechnical, quality, and economic frameworks, and proposes a solution. Finally, it prepares a design proposal for a new infrastructure project, specifically highway design, analyzing methods for creating foundations and addressing geotechnical aspects. The report uses the Lok Wo Sha, Shatin, Hong Kong project as a case study, demonstrating the application of these principles in a real-world context.