NCICD sea dike is a conceptual structure aims to protect North Jakarta coastal area from a long term coastal flooding. The dike is a part of NCICD's conditional measures which is still under evaluation on various aspects. This study reviews the technical aspect on hydraulic responses of rocks, concrete cubes, and tetrapods as alternatives of structure's armor layers, considering recommendations given from previous studies. Two-dimensional physical model experiments were carried out in a 1.0 m-width and 40.0 m-length wave flume. Models with 1:30 scale were subjected to regular and JONSWAP spectrum wave. During the experiment, set of wave probes and video cameras from multiple angles were used to acquired wave height and wave periods, and to record experiments for observation of the maximum wave run-up elevation also number of displaced units on the armor layer. Results in the form of a hydraulic response consisting of reflection waves, energy dissipation, and wave run-up indicating that addition of the three layers of armor effectively increases the performance of these parameters with varying efficiency (Kr<0.2;KD>0.97;0.07
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