The adoption aims to determine the throughput rate and on the strength of a storm wall. The tests cover the overtopping problems on the quays of the port of Oostende which is determined from an assessment that there is currently an unsafe situation when extreme storms (very high risk of flooding). From the test results of these formulas to be deduced which allow to overtopping can be calculated than the optimum height of the storm wall for similar configurations. The forces will be used to dimension the necessary foundation and calculate the structural stability of the storm wall