This study aims to determine the pattern of crib walls collapse at river bends and the effect of the slope angle of the crib walls not escaping the water as a crib walls collapse control as well as sediment control in channels with various bend angles. The model was made in a channel 25 × 20 cm, a river length of 600 cm. Sediment distribution from fine sand that is not homogeneous and the flow is clear (clear water). The angle and distance of the crib walls installation are varied. The crib walls used in this experiment were 5 cribs with a tilt angle of 30° and 60°. Each treatment was observed with parameters related to erosion and sedimentation in the river bank bends, including velocity (v), time (t), depth of erosion (de), sedimentation (ds). The dimensional analysis method is used to see the relationship between dimensionless parameters with the Langhaar method. The results showed that the maximum relative sedimentation (ds5/t) max for the crib walls angle of 30° occurred in the fifth crib walls of 0.025 at a relative speed (v/t) of 0.06. While the maximum relative erosion depth (ds3/t) max for the tilt angle of 30° crib walls occurs in the first grout, which is 0.012 at a relative speed (v/t) of 0.0042. At the angle of 60° crib walls, there is a maximum relative erosion depth (de₃/t) of 0.082 at a relative speed (v/t) of 0.006 on the third crib walls. The increasing of the relative velocity (v/t) the greater the value of the relative erosion depth (ds/t)