Dredging can be defined as ‘excavation-type’ work, where a dredger removes sediments from an estuary, waterway, or ocean floor. This work can include cleaning, deepening, or widening a body of water using a scoop or suction device.
The dredging process consists of the following three elements: excavation, transport of excavated material, and then use or disposal of dredged material. You can also refer to https://www.coastseawall.com/dredging/ to hire dredging and port construction services.
For shipping, dredging is usually done to increase the depths of channels or ports to improve navigation and increase bottom clearance, but it can also be done to reclaim material for use on land or in port development. Materials normally removed can include rocks, bottom sediments, debris, sand, refuse, and plant or animal matter.
Dredging is also often undertaken in order to:
• create underwater foundations;
• facilitate the emplacement of pipelines or immersed tunnel elements;
• construct flood control structures such as dams, dikes, or levees;
• ensure flood defenses (by improving or maintaining the discharge capacity of watercourses);
• create or maintain storage capacity in water supply reservoirs.
Hence, dredging is an important way of providing sands and gravel for construction and reclamation projects. There is a dedicated sector of the maritime industry that ensures that those depths are maintained, known as the dredging sector.