DESIGN WAVE LOADS FOR A JETTY AT PLYMOUTH, MONTSERRAT

This paper describes the assessment of waves and wave effects with res pect to the design of a jetty at Plymouth, Montserrat, in the eastern Caribbean Sea. A previous jetty was destroyed in 1989 by Hurricane Hug o, and a critical part of the new jetty's design relates to the effect s of waves. Particular attention is given to the establishment of desi gn wave conditions. This includes both hurricane and non-hurricane con ditions and requires a consideration of wave shoaling and refraction, as well as wave breaking in the vicinity of the jetty. The prediction of design wave loads includes the calculation of drag and inertia forc es and an assessment of impact loads due to waves on the underside of the jetty and waves breaking onto the deck.