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Abstract. Subsurface drip irrigation (SDI) is an efficient irrigation system for alfalfa production. Realizing the full potential of SDI technology requires optimizing the design and management parameters. A better understanding of the soil water redistribution progression around a buried point source can increase alfalfa water productivity and consequently the success of the SDI system. Numerical simulations are a fast and inexpensive approach to studying optimal design and management practices. In this study, the HYDRUS-2D simulation model was used to compare simulated and measured soil profile volumetric water content data for alfalfa on a deep silt loam soil to a depth of 3 m. The results reinforce the use of HYDRUS-2D as a tool for investigating and designing SDI management practices for alfalfa, a crop known for its high-water use and profitability.