This case study examines various soil stabilization techniques used in civil engineering to enhance soil properties for construction. It explores mechanical, chemical, and biological methods, evaluating their effectiveness through real-world applications in projects such as highways, urban developments, railway embankments, and flood protection levees. The study highlights the benefits and challenges of each technique, considers environmental impacts, and discusses emerging trends and technologies. Through detailed analysis, it provides insights into optimizing soil stabilization for durable and safe infrastructure development.