ed. These defences were to cause great problems. The groyne meant that material moving down the coast by longshore drift would get stuck behind the groyne. This protected the initial area as a beach was created. Although this meant less material was heading further down the coast than it had done in the past, it created a beach as it was trapped. The sea wall and rip-rap protected the initial area, by stopping the erosion. Although in turn this meant less material was been carried down the coast, because there was less been eroded
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