HydroSurvey Australia, Flinders Ports’ specialist seabed mapping division, has been using three customised vessels to carry out detailed hydrographic surveys, not only for Flinders Ports, but for other ports and organisations too.
Over the past 12 months the HydroSurvey Australia team has conducted a number of hydrographic surveys for Flinders Ports including the annual surveys of the navigation channels and berths for the ports of Port Adelaide, Wallaroo, Port Lincoln, Thevenard, Port Pirie, Port Giles and Klein Point in South Australia. A clearance survey for the new Oil Berth at Outer Harbor, Port Adelaide and surveys of TechPort and ASC Berths at Osborne, Port Adelaide – under both ship lifts – were also completed.
As well as working for Flinders Ports, HydroSurvey Australia has recently completed other survey work in South Australia. This has involved a bi-annual survey of the Port Bonython navigation channel and berth in Upper Spencer Gulf, an annual survey of the Yarraville Shoal Choke Point in Upper Spencer Gulf, a bathymetric survey of the Cape Jervis harbour and boat ramp, pre and post dredge surveys of the O’Sullivan Beach boat haven and pre and post dredge surveys of the entrance to Gulf Point Marina for the South Australian Department of Planning, Transport and Infrastructure.
HydroSurvey Australia regularly undertakes hydrographic survey work in Tasmania. Working in close consultation with Tasports, HydroSurvey Australia recently carried out the annual survey of the Devonport harbour and entrance, a survey of two proposed spoil grounds in the Bass Strait adjacent to Devonport, and a survey at Hells Gates near Strahan.
By using Geoswath Plus interferometric wide swath survey systems in combination with Position Orienting System for Marine Vessels (POSMV) – Global Positioning System (GPS) aided inertial navigation systems, HydroSurvey Australia is able to achieve ‘total bottom coverage’, in compliance with the IHO specifications for Special Order Surveys. The company’s in-house experts then process the raw data, prepare plans, undertake 3D modelling, calculate volumes and provide a variety of textual or graphic based outputs for clients.