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Hydrodynamic model and sediment transport model were investigated in the Sg Telom and Sg Bertam, Cameron Highlands as a result of rapid urbanization and agriculture activities over the past 30 years. This article, from the point of view of the river catchment as a whole system, presents an integrated approach by combining the hydraulic and hydrology simulations with numerical model of sediment transport and change in river bed level before and after the Ringlet reservoir. To accomplish this purpose, InfoWork RS, a well developed numerical model for sediment transport and river bed variations were used. The application shows that it can properly simulate change of river bed variation over 10 months simulation period.[Nature and Science 2010; 8 (2): 67-73].(ISSN: 1545-0740).