Abstract
An open-end graded border design procedure is presented. The proposed method based on the principle of mass conservation requires Kostiakov and Manning formulations for infiltration and roughness, respectively. The key assumption of the present design procedure is that the minimum infiltrated depth occurs at the lower border end and is equal to the required depth of infiltration. The philosophy behind the proposed design procedure is to select the appropriate flow rate q^sub 0^ and cutoff time T^sub cof^ for given field conditions including the field geometry (field length and slope) and the soil characteristics (including the surface roughness coefficient and infiltration parameters). The results of two example border fields were in close agreement with those obtained from a zero-inertia model.[PUBLICATION ABSTRACT]