1. Introduction. 1.1 Origins of Sediments. 1.2 Classifications of Sediments. 1.3 Sediment Transport Processes and Problems. 1.4 Classifications of Water-Borne Sediment Loads. 1.5 Sediment Yields in the Worlds Rivers. 1.6 Historical Development of Sediment Transport Dynamics. 1.7 Coverage of This Book. 2. Properties of Water and Sediment. 2.1 Physical Properties of Water. 2.2 Sediment Density and Specific Weight. 2.3 Mineral Composition of Sediments. 2.4 Electrochemical Properties of Sediment Particles. 2.5 Geometric Properties of Sediment Particles. 2.6 Size Gradation of Sediment Mixture. 2.7 Porosity and Dry Density of Sediment Deposit. 2.8 Geotechnical Properties of Sediment Deposit. 2.9 Physical Properties of Sediment-Laden Water. 3. Open Channel Flows. 3.1 Classifications of Open Channel Flows. 3.2 Basic Hydrodynamic Equations. 3.3 Turbulence Characteristics. 3.4 Velocity Profiles of Uniform Turbulent Flows. 3.5 Average Velocity and Boundary Shear Stress of Uniform Flows. 3.6 Three-Dimensional Flow Features. 3.7 Coherent Structures in Turbulent Shear Flows. 4. Settling of Sediment Particles. 4.1 Settling Process of Sediment Particles. 4.2 General Formula of Particle Settling Velocity. 4.3 Settling Velocity of Spherical Particles. 4.4 Settling Velocity of Sediment Particles. 4.5 Effects of Sediment Concentration on Settling Velocity. 4.6 Effects of Turbulence on Sediment Settling Velocity. 4.7 Measurements of Sediment Settling Velocity. 4.8 Relationship Between Fall and Nominal Diameters of Sediment Particles. 4.9 Time and Distance to Terminal Settling of Sediment Particles. Appendix 4.1 Settling Velocity of Common Natural Sediment Particles. 5. Incipient Motion of Sediments. 5.1 Drag and Lift Forces on Bed Sediment Particles. 5.2 Incipient Motion Thresholds of Individual Sediment Particles. 5.3 Approaches to Describing Incipient Motion of Bed Particle Ensembles. 5.4 Critical Average Velocity for the Incipient Motion of Uniform Sedimel3,