In this paper, comparing the results obtained from monitoring and numerical modeling carried out to significantly help to analyze the stability of embankment dams. One of the aims of this research is a comparison of these analyses with the fact they are the precise instrument results, in addition to validating the numerical analysis, is the basis for performing a back analysis to obtain accurate Geotechnical parameters. Rudbar Lurestan dam was selected as a case study and the results of its instrumentation were processed and analyzed. The model was modeled in a static state at the time of construction. FLAC2D V7 software was used for modeling and simulation was done using Mohr-Coulomb behavioral model and the initial parameters of the material (Obtained from the laboratory). Then, after completing the modeling at the end of construction and initial impounding the results of back calculation, the final parameters of the materials were obtained and conformity of the results of these analyses with the design assumptions and the instrumentation results was evaluated. The observations show that there is a good agreement between the monitoring results of the modeling and also final parameters obtained from the back calculation show a growing trend in most parameters.
