This report deals with a two-dimensional model test study of the extension of the breakwater in Suape, Brazil. One cross-section was tested for stability and overtopping in various sea conditions. The length scale used for the model tests was 1:35. Unless otherwise specified all values given in this report are prototype values by assuming Froude scaling.

Ph.D. Thomas Lykke Andersen were in charge of the model tests and assisted by Aurimas Sipavicius and Alban Le Querré. Engineer assistant Niels Drustrup and Kurt S. Sørensen assisted in the laboratory with the building and instrumentation of the models. Professor, H. F. Burcharth assisted with the planning of the model testing, test observations and the reporting.