Erosion phenomenon and sediment transition is one the most complex hydrodynamics problems, so simply it is not possible the exact determination of its governing equations. In this paper, Imperialist Competitive algorithm (ICA) was used to predict the daily suspended sediment load of Zarinehrood river. Suspended sediment load of the sedimentary station located in the Zarinehrood River during 2005-2015 (10 statistics year) with flow discharge variable during this month was used as input. The results of implimation of ICA showed the high accuracy of the ICA with values R2 = 0.89, RMSE = 235 mg/L. In general, the results obtained from the ICA used in this paper showed the high ability and accuracy of the ICA in estimating the suspended sediment load of Zarinhorod river.

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