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3. Different types of dredging
3.1 Maintenance dredging
For maintenance operations, distinctions can be made between :
access channels to seaports, where sedimentation is mostly sandy;
estuarine harbours, where sedimentation often consists of fine particles (Loire, Gironde) or a mixture of sand and silt (Seine);
river access channels (waterways) ;
afloat basins, where sedimentation is linked to the settling of suspended solids loaded with fine particles.
Several working methods need to be implemented to optimize dredging in these different situations.
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Seaport access channels...
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Different types of dredging
Regulatory aspects: legal framework for monitoring dredging and dumping operations
Bibliography
Websites
Environmental experimentation ballastière d'Yville-sur-Seine https://www.haropaports.com/fr/rouen/ballastiere-dyville-sur-seine
Regulations
General provisions of the framework agreement: articles R. 2162-1 to 6.
Multi-award framework agreement (with purchase orders): article R. 2162-2 paragraph 2. https://www.legifrance.gouv.fr/affichCode.do;jsessionid=...
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