Sentosa Beach Enhancement Study

Sentosa is Singapore’s most popular island resort with over 19 million of visitors annually. At least 6 million visitors go to the beaches, making them one of Sentosa’s main attractions.

The man-made beaches of Sentosa Island have suffered from continuous erosion since the construction was completed in 2000. Extensive sand volumes have been necessary ever since to maintain these beaches. The developer and owner of the island requested Witteveen+Bos in 2016 to design solutions for beach enhancement. In order to do this, we developed a morphodynamic model to simulate and analyse the behaviour of the beaches, after all boundary conditions (including Sea Level Rise) were assessed with the use of hydrodynamic modelling.

From the results of the analysis, we designed tailored-made longshore dams and wave attenuator systems in close corporation with the client, for the counteraction of beach erosion. In addition, the water quality and swimmer safety for the region were examined. The main activities in this project consisted of data analysis, hydrodynamic- and morphological modelling, and the design of sustainable solutions to counteract beach erosion, under the consideration of future climate change.
 

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