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(1) That portion of exposed beach formed by waves depositing sand as they dissipate on the beach. The size of the berm commonly varies with the season. In the summer, the waves move sand onshore and the berm increases; however, in the winter waves erode the berm and move the sand offshore. (2) Bank of earth, sometimes paved, which is used to deflect surface runoff, indicate property limits, or change terrain. (3) Highway shoulder.