Riprap, a slit inside the pier, a number of piles located in front of a pier, collars, and other strategies have all been used to control scouring around bridge piers. In this study, a new alternative countermeasure for reducing scour around the rectangular bridge pier was investigated. A gabion basket —a stone basket attached to the upstream face of the pier—was investigated experimentally for reducing scouring depth around the bridge pier as a countermeasure in a clear-water condition. For estimating the efficiency of using the stone basket as a countermeasure for reducing scour, the scour findings of the pier with no modifications were used as a basis for comparison. The findings indicate that the pier using a stone basket significantly reduced the scour depth. According to the findings, the pier with a stone basket size of dg/B = 0.3 lowered the depth of scouring to 50%, and the best relative length of the stone basket was Lg/B = 0.5. Based on the experimental findings, a formula for predicting scour depth at rectangular bridge piers was developed. The results of this study may be used in the field of application for bridge pier protection design
