Understanding the intricate dynamics of flow and sediment transport within compound meandering channels is vital for designing stable channels. The interplay of centrifugal forces, hydrostatic pressure, and shear stress significantly influences the complex flow patterns in these channels. Shear stress serves as a pivotal parameter for predicting bank erosion and bend migration, influenced by local accelerations, decelerations, and secondary flows. Momentum transfer between the primary channel and adjacent floodplains intricately shapes shear stress distribution in various sections. This study involves an analysis of laboratory data focusing on meandering channel patterns and the forces acting on their boundaries in the intricate three-dimensional flow within bends. Four methods—linear regression (LR) of flow velocity profiles, turbulent kinetic energy (TKE), modified turbulent kinetic energy (TKE-w′), and Reynolds shear stress extrapolation (RSS)—were employed based on ADV data collected in a compound meandering channel. The research aims to validate modified TKE and TKE-w′ constants, which demonstrated improved accuracy compared to conventional constants. Additionally, the study discusses the position of maximum shear stress in these channels, shedding light on their critical locations

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