Different types bank protection works have been constructed along the both banks of the braided Jamuna River. Some of the structures are constructed in the main channel and some of them are in the secondary channel of the Jamuna River. The structures constructed either in the main channel or in the secondary channel are affected by failure problems. Among them two Reinforced Cement Concrete (RCC) spurs (Betil and Enayetpur) constructed in the secondary channel are selected for the present study. Acoustic Doppler Current Profiler (ADCP) is used to measure the hydraulic data around the Betil and Enayetpur spurs. It is found from the hydraulic data analysis that the oblique flow, strong parallel flow and flow circulation normal to the earthen shank and the belmouth are generated around the spurs. The generated shear velocity near the earthen shank is five times higher than the critical shear velocity. Due to above types of flow and higher shear velocity near the earthen shank and belmouth deep channel is developed adjacent to the earthen shank. As a result the Betil and Enayetpur spurs frequently damaged when the flood flow comes.