![]() ![]() Environmental dredging – to prevent contamination and improve water quality to restore the affected marine area.Excavation to remove overlying soil – to reach minerals, gems, precious metals, and fertilizers lying in the sea, river, or lake.Excavation at underwater foundations – prior to placement of pipelines or tunnels for underwater infrastructure.Land reclamation for residential and industrial areas, habitats for birds or wildlife. ![]() Maintenance / increasing navigation channels – to ensure the safe passage of boats and ships.There are four phases in the dredging process: excavation, vertical transport, horizontal transport, and placement or use of the dredged material. Dredging is the process of underwater excavation of soils and rocks.ĭredging is done periodically to remove underwater sediments called silt and debris from shipping harbors, rivers, coastlines, or lakes. ![]()
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