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An experimental study was carried out to determine the effect of consolidation on arching in storage bins for cohesive materials. A model bin 475 mm in height and 600 mm 375 mm in crosssection was designed and fabricated to conduct tests. Wheat flour at two different moisture contents of 8.6% and 14.2% was prepared as the test material. Arching tests were conducted by filling the wheat flour into the model bin and then a universal testing machine was used to apply pressure to consolidate the stored material. It was observed that the moisture content of wheat flour had noticeable effect on the location of arching. Arching span increased as the moisture content increased for the tested consolidation pressure range of 0 to 27 kPa. The arching span increased as the consolidation pressure increased at low levels of consolidation pressure, and the arching span changed little after consolidation pressure reached a certain level (1.85 kPa).