This dredging process is time-consuming and expensive, but without it, many waterways and harbors will become unusable, with costly implications for trade, supply chains, and economic growth. Harbors, shipyards, and other critical commercial waterways must be regularly dredged to mitigate the steady accumulation of silt. As ships exit from ports, the earth and sand moved by the displacement of water remain, building up sediment into large embankments that make navigating harbors and waterways increasingly difficult. The vessels enter the port from the ocean, bringing with them large displacements of water leading to accumulation of sediment in the base of the harbor. This process is an ongoing, natural phenomenon exacerbated by the increased usage of shipping lanes by large cargo vessels. Over time, navigating through harbors and waterways tend to become increasingly difficult due to the natural accumulation of sediment and earth washed up from the ocean over time.
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