The third edition of this book recognises two important developments that have taken place in recent years. (1) Mathematical modelling of alluvial river processes, and (2) environmental aspects relating to sedimentation. Both of these factors have been duly considered in this edition. With its detailed analysis and clear presentation, this book would be extremely useful for practising civil engineers. It would also serve as an authoritative reference source for graduate and senior undergraduate civil engineering students. Table Of Introduction Origin and Properties of Sediments Incipient Motion of Sediment Particles Regimes of Flow Resistance to Flow and Velocity Distribution in Alluvial Streams Bed Load Transport and Saltation Suspended Load Transport-Total Load Transportation Sediment Samples and Sampling Design of Stable Channels Alluvial Streams and their Hydraulic Geometry? Bed Level Variation in Alluvial Streams li>Variation in Plan Form of Streams Sediment Control in Canals River Training and Bank Protection li>Alluvial River Models, Debris Flows and Density Currents Sediment Transport Through Pipes.