Practical methods for solving seepage and drainage problems are described in this book. Part I addresses permeability and seepage fundamentals, and includes instructions, with step-by-step examples, for flow net construction. Part II presents typical seepage analyses and drainage designs for earth dams and levees; foundation dewatering and stabilization by drainage; slope improvement by drainage; drainage of roads, airfields, and other surface facilities; and the improvement of miscellaneous structures by drainage. The book reviews the performance records of projects with water problems in many countries, and presents new ideas on seepage and drainage that have been developed by researchers and others around the world. The previous edition of this book was published in 1977. The text is aimed specifically at students and practitioners of civil engineering.