Hall Contracting CEO Cameron Hall said the company had dredged approximately 24,000 cubic metres of silt, sand and gravel from the entrance channel and a number of internal channels, enabling deeper draft vessels to continue using the harbour.
“Rosslyn Bay is a common departure point for island cruises, fishing charters and ferry transfers, and with tidal movements generating sediment build-up in the harbour, the area requires maintenance dredging every few years to remain accessible,” Mr Hall said.
“The works took just over three months to complete, with the various marinas housed within the harbour remaining operational at all times.”
Mr Hall said the project – funded through the state government’s $30 million Marine Infrastructure Fund – saw the dredged material pumped more than a kilometre to an approved discharge site.
“Water quality was an important consideration throughout the project, and our team performed ongoing plume monitoring as well as megafauna observation as part of our broader environmental management plan, ensuring there was minimal impact on the surrounding environment.”
The project wasn’t the only one Hall’s Warraber dredge undertook while stationed in Rosslyn Bay, with the vessel also assisting the Department of Transport and Main Roads with commissioning two new pontoons.
“A number of other local stakeholders including the Queensland Police Service and Capricorn Cruising Yacht Club also engaged our team to carry out dredging works, improving access to their respective facilities within the harbour,” Mr Hall said.
A Queensland-based business, Hall Contracting is Australia’s largest dredging and civil construction company, operating in Australia, Asia and the Pacific Islands.