In today’s modern highways due to its creative and cost-effective approaches to over passage, under passage, separation structures, and bridge deck systems, box girder bridges are among the most often utilised bridge deck systems. Various structural components make up a conventional box girder bridge. The current study focusses on parametric analysis of RCC box girder bridge deck. Many literatures suggest that finite element analysis is most suitable method for evaluation of box girder deck sections. Six box girder bridge models with varied depth and number of interior girders with constant span lengths is modelled in finite element method (FEM) based software CSI Bridge 2016 and is used for the parametric study. The cross section for varied depth consists of single cell RCC box section with constant span length of 30m. Static analysis of each model is done for IRC 6 load combinations, self-weight, super imposed dead load and impact factor. The bending moment (BM), shear force (SF) and displacement for the models are recorded. From the results it is found that BM, SF increases for increment in overall depth of the section but deflection reduces.