The third edition of this best-selling textbook combines thorough coverage of fundamental theory with a wide ranging treatment of contemporary applications. The chapters on sediment transport, river engineering, wave theory and coastal engineering have been extensively updated, and there is a new chapter on computational modelling. The authors illustrate applications of computer and physical simulation techniques in modern design. The book is an invaluable resource for students and practitioners of civil, environmental, and public health engineering and associated disciplines. It is comprehensive, fully illustrated and contains many worked examples, taking a holistic view of the water cycles, many aspects of which are critical for future sustainable development.