Effect of the Coastal Protection using the Beach Nourishment at Tottori Sand Dune Coast, JAPAN

Shibutani, Y.; Kuroiwa, M.; and Matsubara, Y., 2016. Effect of the Coastal Protection using the Beach Nourishment at Tottori Sand Dune Coast, JAPAN., Proceedings of the 14th International Coastal Symposium (Sydney, Australia). Journal of Coastal Research, Special Issue, No. 75, pp. 695–699. Coconut Creek (Florida), ISSN 0749-0208. Beach erosion is a serious problem worldwide. The Tottori Sand Dune coast had started eroded in the 1950s, and the beach nourishment project has been carried out to restore the shoreline since 2005. The total volume of the sand was approximately 650,000 m3 from 2005 to 2014. In particular, a large amount of sediments, which was 100,000 m3, was injected in 2010 and 2011. In this study, the effect of the project was estimated. The sand volume increased temporarily after the large-scale beach nourishment, and then, the sand volume gradually decreased. However, the shorelines showed restoration trends after the beach nourishment project. In addition, although a part of the injected sediments was moved to the Tottori port, recovery of the shoreline was maintained.