<p>An experimental investigation was undertaken to examine the temporal evolution of turbulence characteristics and higher-order flow correlations for a discharge of 0.0176&#xa0;m³/s in a rigid bank, mobile bed channel. Three-dimensional velocity components were captured using an Acoustic Doppler Vectrino Profiler to facilitate detailed turbulence analysis. Turbulent kinetic energy (TKE) exhibits its minimum and maximum values close to the outer and inner bend, respectively, at the upstream and apex regions, while at the downstream, the higher TKE occurs at the center. Near the bed, the TKE flux shows downstream-downward flux transport toward the inner bend. The TKE budget indicated that, in the near bed region, the TKE production rate and diffusion rate exhibited both positive and negative tendencies, whereas the TKE dissipation rate was positive, and the pressure energy diffusion rate showed a negative tendency. The eddy size, computed using the Taylor microscale with in the inertial subrange, increases at the inner and center points at the upstream. At the apex and downstream locations, it is located at the center points of the bend. The turbulence indicator states that the level of local turbulence is more dominant at the outer bend points. The second order streamwise–vertical and streamwise–lateral correlations indicate a sign reversal, confirming the existence of secondary flow. Third order correlations can be helpful to confirm the streamwise–downward flux, which shows the characteristics of sweep events responsible for the bed movement. The fourth order correlations indicated strong characteristics of turbulence intermittency behavior. The results of the current study are applicable to the selected case of the modeled river reach and can be extended to natural sinuous rivers by considering the limitations. The current study provides significant understanding of flow turbulence and can be helpful to hydraulic engineers for designing structures in an asymmetric sinuous channel qualitatively.</p>