Land property is the main consideration which control choosing the location of river intakes. This leads to increase sedimentation problems inside River intakes. In this research, the baffle column design will be improved to reduce the amount of sediment entering the intake structures. The objective of this paper is studying different spacing values between baffle columns to reduce amount of sedimentation which enter river intakes as possible. The numerical model is used to simulate different flow conditions. Different spacing values will be studied and compared with base case. The base case represents the simulation without using the baffle columns. The model shows that the most suitable spacing value which achieves the least amount of sediment entering the intake is when the spacing distance is equal to column width.