Concrete provides safe harbour

Construction of the wave wall at Eden in southern NSW will be complete in a matter of days.

Part of Transport for NSW’s Eden Safe Harbour Project, the 366-metre wave attenuator in Snug Cove, Eden, is made up of 127 concrete piles and 59 precast panels.

It is only in recent months that all concrete headstocks were installed and by December 2022, piling works were also almost finished, however, the project team encountered some shallow rock profiles beneath the seabed, adding an extra layer of complexity to the work.

To ensure a stable foundation, a ‘drill and dive’ campaign was required to deepen the piles in the bedrock, which has been completed. Divers installed the pile clamps to hold the underside of the wave deflection panels that vary in weight from 27 to 47 tonnes.

Construction of the $32 million attenuator, whose purpose it is to muffle the impact of wave activity and protect commercial boats and maritime infrastructure and future marina, was commenced early in 2022.

Austral Construction, a civil engineering contractor that specialises in piling and marine construction, worked on the Eden project. The company is part of the UK’s Keller Group and has its head office is in Dandenong, Victoria.

An EOI for the marina closed in February.

Image: Installation of the wave deflection panels. Source: TfNSW

About the author

Desi Corbett

Desi is the Editor of Concrete in Australia and at the helm of our magazine for 8 years. She was behind the Institute's weekly news bulletins from 2016-2021 and is now writing our focused news items. Desi has been an engineering news and features journalist/editor across all disciplines since 2013 - part of a 30-year career writing for a wide range of industries.