![]() ![]() This environmental dredging is often necessary because sediments in and around cities and industrial areas are frequently contaminated with a variety of pollutants. Since massive ships carry the bulk of the goods imported into the country, dredging plays a vital role in the nation's economy.ĭredging is also performed to reduce the exposure of fish, wildlife, and people to contaminants and to prevent the spread of contaminants to other areas of the water body. This water depth continues to increase over time as larger and larger ships are deployed. Vessels require a certain amount of water in order to float and not touch bottom. It is a routine necessity in waterways around the world because sedimentation-the natural process of sand and silt washing downstream-gradually fills channels and harbors.ĭredging often is focused on maintaining or increasing the depth of navigation channels, anchorages, or berthing areas to ensure the safe passage of boats and ships. Many distorted fragments of meteoritic iron are later dredged up from the area where the wreckage fell.Dredging is the removal of sediments and debris from the bottom of lakes, rivers, harbors, and other water bodies.It must have been seeing her reading Tennyson that had dredged up an old forgotten quotation.The scheme involves dredging the main channel of the Medway estuary to provide a storage base for import-export cargoes.Others specialize in dredging operations required for bridges and dams or for harbors.Fearing more floods, the state had the river dredged. ![]() 2 DF to cover food lightly with flour, sugar etc → dredge something ↔ up → See Verb table Examples from the Corpus dredge From Longman Dictionary of Contemporary English Related topics: Water, Civil, Food dredge dredge / dredʒ / verb 1 TTW TEC to remove mud or sand from the bottom of a river, harbour etc, or to search for something by doing this They dredged for oysters. ![]()
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