Influence of jetty construction on morphology and wave set-up at a river mouth

Hitoshi Tanaka, Hyun Seok Lee

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)


At the Shiribetsu River mouth located in Hokkaido, Japan, a jetty has been constructed on the right hand side of the mouth from July to October 1999. In this study, the effectiveness of the jetty construction is studied by analyzing field data of river mouth morphology and water level variation. Before the jetty construction, water level rise due to wave set-up has frequently been observed every year from October to March. It is found that the height of the wave set-up increased in winter with the development of sand spit at the river mouth. After the construction, it is confirmed that the interruption of longshore sediment movement due to the construction of the jetty led to the stability of the river mouth opening. Furthermore, it reduces the wave set-up in the river mouth.

Original languageEnglish
Pages (from-to)659-683
Number of pages25
JournalCoastal Engineering Journal
Issue number4
Publication statusPublished - 2003 Dec


  • Jetty
  • River mouth
  • Sand spit
  • Shiribetsu River
  • Topography change
  • Wave set-up


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