Scour hole geometry downstream of a culvert

Study on maximum depth of scour downstream of culvert has received considerable attention by different investigators. However less information about the scour hole geometry at the downstream of a culvert is available. Therefore, it is required to reanalyze the existing data to study the scour hole geometry. The available experimental data on scour downstream of a culvert have been analyzed. It was found that the scour hole geometry, in addition to culvert diameter and discharge intensity, is a function of drop height also. New equations for prediction of scour hole geometry are presented.