Dredged Spoil Storage Basin in the Coastal Waters Near Rotterdam

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by P. Vellinga, Delft Hydraulics Lab, Emmeloord, Netherlands,
J. P. J. Nijssen, Delft Hydraulics Lab, Emmeloord, Netherlands,
R. G. J. v. Orden, Delft Hydraulics Lab, Emmeloord, Netherlands,
M. de Rooij, Delft Hydraulics Lab, Emmeloord, Netherlands,

Document Type: Proceeding Paper

Part of: Water Forum '86: World Water Issues in Evolution

Abstract: The maintenance dredging for the Rotterdam harbour area amounts to 23 million m**3 per year, 10 million m**3 of which is polluted to such an extent that a controlled storage is required. To provide a sufficient storage capacity a large scale basin is being constructed in the shallow coastal waters. The paper describes two important parts of an environmental impact study: the coastal engineering aspects of the design and the maintenance of the ring dike (fully constructed of sand) and the environmental aspects related to the long term behaviour and migration of the contaminants. The studies have been carried out by means of a numerical simulation of the hydraulic, the coastal morphologic and the chemical processes.

Subject Headings: Water storage | Dredged materials | Sea water | Basins | Coastal processes | Maintenance | Coastal environment | Levees and dikes | Environmental issues | Netherlands

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