In this work, investigation of effect of wing shape on reduction of local scour at a T-shape spur dike
in a 180 degree flume bend are presented. Spur dikes are structures constructed in rivers to maintain a suitable
measures for bank protection and flood control. Experimental investigation on scoring and determination of
depth of scoring are among the most important issues in T-shape spur dike designation. The study was
conducted using in a 180 degree laboratory flume bend. Experiments were conducted for different wing shapes
of T-shape spur dikes at the bend with various Froude number. In this study, the time development of the local
scour around the T-shape spur dike plates was studied. The time development of the scour hole around the
model T-shape spur dike installed was compared with similar studies on spur dikes. The results of the model
study indicated that the maximum depth of scour is highly dependent on the experimental duration. It was
observed that, as Froude number increases, the scour increases. All Froude numbers, oblong wing at location
of 60 degree results maximum reduction in scour depth. Measuring depth of scouring based on experimental
observation, an empirical relation is developed with high regression coefficient 95%.