Longshore sediment transport rate may be calculated using semi-empirical equations, which are based on laboratory and field data. These formula use a bulk sediment transport method that relates longshore sediment transport to a few waves and beach parameters (see, for example, the CERC-1994 and Kamphuis-1991 expression). In this paper, a new approach is proposed for the computation of the longshore sedimernt transport in a sea state, with a given significant wave height at breaking and a given spectrum. An application is proposed, where the results given by the new solution are compared with those achieved the CERC and Kamphuia formulae.
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