What is beach nourishment?

Port beach sand renourishment by Rohde Nielsen


Why Beach Nourishment? Preservation and restoration

According to the European Climate Adaptation Platform (Climate-ADAPT), Beach nourishment or replenishment is the artificial placement of sand on an eroded shore to maintain the amount of sand present in the foundation of the coast, and this way to compensate for natural erosion and to a greater or lesser extent protect the area against storm surge.

Climate change and the expected rise in the sea level require forceful coastal management. Beach nourishment is probably the best management tool that protects and controls coastal development without degrading the beach.

Beach nourishment also often aims at maintaining beach width for tourism and recreational purposes. The process involves dredging material (sand, gravel, small pebbles) from a source area (offshore, near-land or inland) to feed the beach where erosion is occurring. 

Port Beach Sand RenourishmentRohde Nielsen has recently completed the Port Beach Sand Renourishment project in Australia, which was awarded by the Port of Fremantle and the City of Fremantle.

The TSHD, Modi R has been in seasonal operation since July 2022 and has dredged 150.000 m3 of sand from the Fremantle Ports’ Deep-Water channel to a depth of -18.5 meters. The dredged sand was then reused for Beach Nourishment in designated nearshore areas of Fremantle’s Port Beach using the rainbow method, providing optimal distribution.

Throughout the duration of the project, a high standard of environmental controls was implemented, with utmost consideration given to minimizing any potential environmental impacts.

The successful completion of the Port Beach Sand Renourishment project is a significant achievement for Rohde Nielsen, the Port of Fremantle, and the City of Fremantle!

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This article is shared by courtesy of Rohde Nielsen.

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