The integration of a new model for the soil water retention curve provides an expanded spectrum of prediction for hydraulic conductivity functions. Special attention is given to the dry end of these functions. The predicted results have the shape of complete or incomplete gamma functions. For lighter soils the quality of these predicted functions is acceptable, in particular for the wet part. They are comparable in quality to those that have the shape of complete or incomplete beta functions. Data for heavy soils and peat soils clearly demonstrate the need for additional modeling efforts in order to produce satisfactory results for those soils.