Primarily intended as a textbook for the undergraduate and postgraduate students of civil engineering, this book provides a comprehensive knowledge in open channel flow. The book starts with the concept of open channel flow, types of forces acting on the flow, types of channel flow, velocity distribution and coefficients, and basic continuity in 1D and 3D. Then it moves on to steady gradually varied flow, its differential equation, hydraulics of alluvial channel, design of channel and hydraulic jump. Finally, the text concludes with Saint-Venant equations and its solutions by few numerical methods in flood routing and dam-break situations. Table of Contents Preface. Open Channel Flow. Uniform Flow. Specific Energy, Specific Force and Critical Depth Computation. Hydraulics of Alluvial Channels. Design of Channel. Gradually Varied Flow. Hydraulic Jump. Rapidly Varied Flow. Spatially Varied Flow. Unsteady Flow. Dam-Break Problem. Index.