Freshwater tidal channels represent dynamic ecosystems, where morphological equilibrium is governed by a delicate interplay of geomorphic processes. This work presents a focused exploration of morphodynamical equilibrium in freshwater tidal channels through a non-process-based modeling framework. Morphodynamical modeling facilitates scenario-based assessments to analyze the impacts of environmental stressors and manage interventions on morphological stability. By calculating the complex interactions among hydrological and sedimentological processes, the model offers insights essential for devising effective conservation and restoration strategies for freshwater tidal ecosystems. Typically, process-based morphodynamical models, where sediment transport and balance are attached to the current and wave solvers in a time-step scheme, sediment transport is calculated until the bathymetry develops towards stable state. The computational cost is high. In this paper we present a method, which approximates the results of the process-based modelling without the need for long term morphodynamical simulations. The non-process-based numerical approach offers considerable advantages due to its efficiency, flexibility and robustness, principally for large-scale and long-term analyses in morphodynamics. Coupling the non-process with process-based methods lead to a more comprehensive and balanced understanding of morphological changes, which is valuable for both scientific and practical applications.