DHI: Protecting South Australia Beaches from Erosion

The Department of Environment, Water and Natural Resources (DEWNR) recently commissioned DHI Australia to undertake a numerical modelling of the coastal processes at West Beach, aiming to gain greater insight into the nature of the erosion and the effectiveness of possible management options.

West Beach, a seaside suburb of South Australia, has been a particularly erosive part of the Adelaide coast for decades. This erosion has been managed with regular beach replenishment via a backpass pipeline.

A workshop was held recently to discuss the analysis of the survey together with other data and the preliminary modelling that has been completed to date, DHI said.

The modelling analysis involved the development of a comprehensive coupled MIKE 21 HD and SW model of the Gulf St Vincent to enable an eight-year hindcast of waves, water levels and currents to be developed for the study area.

Enabling long-term predictions of shoreline evolution 

The detailed hindcast will be used to drive a MIKE 21 Shoreline Morphological (SM) model of the study area.

“An advanced new model for studying coastal morphology, MIKE 21 SM enables robust long-term predictions of shoreline evolution for complex shorelines, where inherent two-dimensional features of the bathymetry and coastal structures, significantly influence the shorelines evolution,” DHI said.

An initial assessment of beach volumes indicates that a significant amount of sand is being transported by natural processes from West Beach to Henley Beach. This will be investigated further as part of the modelling program, said DHI.

 

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3rd International Congress Hydraulic Engineering Structures and Dredging

Russia’s leading maritime industry Media Group PortNews (www.portnews.ru) holds a traditional annual Congress “Hydraulic Engineering Structures and Dredging” in Moscow. 

The two-day Congress includes the 7th International Forum of Dredging Companies and the 3rd Technical Conference “Modern Solutions for Hydraulic Engineering”.

Infrastructure development is among the real sources of Russia’s economy growth. Construction of port facilities and new hydraulic engineering structures on the country’s inland waterways constitute an essential part of all infrastructure projects. It is important to take into account the best international practices to implement these projects effectively.

The program of the Congress will be devoted to the latest technologies for dredging and hydraulic engineering works. Speakers and delegates will refer to real projects to discuss specifics features of dredging works, as well as dedicated fleet and equipment involved.

To learn more about event, please, contact the organizing committee: snitko@portnews.ru

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