Groundwater lowering is a necessity for underground construction works, especially in urban areas where groundwater exists. Economical design of dewatering schemes requires a thorough understanding of the different modeling tools that are capable of predicting the behavior of dewatering systems. This study presents the results of a three-dimensional (3-D) numerical analysis of in-situ pumping tests that were carried out in a multi-aquifers area. Comparison between the numerical results and the monitored responses of the carried out pumping tests are presented to exhibit the adequacy of the proposed numerical scheme. In addition, the necessity of using numerical modeling for complex site conditions was delineated through the analysis of a dewatering system of a large excavation that was required for a culvert construction in the considered multi-aquifers area where the pumping tests were carried out.
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