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Dredging in harbour areas
7. Dredging is an important activity for many ports and harbours and is undertaken to meet a number of different objectives. Existing powers may cover the following dredging activities:
- navigation: to maintain or improve/extend navigable depths in ports, harbours, marinas and shipping channels which is usually a statutory requirement for port and harbour authorities;
- flood control: to improve drainage or sea defence;
- construction and reclamation: in support of coastal development or for the provision of foundations for civil engineering works, for example barrages, bridge piers and pipelines;
- beach nourishment: to supply material to reinstate or improve the performance of a beach as a sea defence or an amenity;
- environmental: to improve and clean up the environment, generally for the removal of contaminated sediments which is commonly called remedial dredging.
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