Abstract
Relation between the function of sluce flood way and beach erosion on its downcoast was investigated through the field observation at Showa sluce flood way located on the Fuji coast facing Suruga Bay. Beach survey data were analyzed to investigate temporal and spatial change in shoreline position around the flood way. Shoreline change was compared with the theoretical results. This flood way was partly destroyed by wave action associated with the beach erosion and scouring. Succesive beach erosion around this structure was made clear by comparison of aerial pictures.
