The work reported in this research presents numerical investigations on the effect of cut-off inclination angleon exit gradient and uplift pressure head under hydraulic structure and determines the optimum location andangle of inclination of cut-off. This problem is solved using the finite element method by using (ANSYS11.0). It is concluded that using downstream cut-off inclined towards the downstream side with Ө less than120º is beneficial in increasing the safety factor against the piping phenomenon. The results are evaluatedgraphically in non-dimensional form.