Rigid bed channels are the conveyances with no boundary erosion and the sediment is fed from external sources, e.g. lined irrigation canals carrying silt, sewers and outfalls, etc. The channel is designed for no deposition criteria. The mode of transport and design criteria largely depend on the sediment and channel characteristics. A great deal of research into the areas of sediment initiation, transport, cohesivity aspects of sediments, etc. has taken place and is still currently in progress.3,18,21,22