This book offers a modern perspective on hazard and risk assessment in civil engineering, with special attention to sustainable infrastructure development. Through its comprehensive coverage of theoretical concepts and its thoughtful integration of sustainability into engineering practice, it serves as a valuable resource for professionals, researchers, and students. It bridges the gap between hazard and risk assessment and the principles of sustainable development, presenting a holistic approach to identifying, assessing, and mitigating risks associated with natural hazards while advancing sustainable infrastructure solutions. Beyond outlining core concepts, the book provides practical examples, user-friendly code, and step-by-step software guidance. Readers will find numerous illustrations, diagrams, tables, and case studies that deepen understanding and support the application of risk assessment methodologies. Ultimately, the book is a guide to unlocking innovative solutions and shaping the future of civil engineering. Civil engineers, environmental scientists, policymakers, and anyone interested in understanding risk assessment will benefit from its insights into building a sustainable, resilient world.