In the programming of the irrigation rolls, under the modality of tumo or mita, one of the considerations to consider is the time of route of the water in the title channels of supplying, which, it is in function to the hydraulic characteristics of the channels and the state of the maintenance of these. This time assigned by the technical part in the programming of the irrigation rolls, manual or executed by means of sorne software, it is considered empirically so that they do not count on sorne real data base or a prediction source andor estimation of he himself, thus influencing in the dowry of water the irrigation users. To consider the time of route of the water in channels, is advisable to use the basic concepts that govern the determination of the curve of advance and resection in furrows; because this behavior is itself in hydraulic sections governed by the same characteristics (i...