As regular maintenance and relocation of sediment deposits are highly expensive, Port authorities seek more efficient solutions for reducing the costs and CO2 emissions of maintenance dredging. One solution, water injection dredging (WID), is carried out for maintaining the sediment deposits which predominantly consist of clay and silt. WID has been proven to be a cheaper solution by leaving the sediment in place, eliminating substantial costs for relocation of the dredged sediment.
The Use of Agitation Dredging, Water Injection Dredging and Sidecasting: Results of a Survey of Port
This year's IADC Award winner examined the hydrodyanamic dredging techniques used in ports and harbours in the United Kingdom.