Hydrographic surveyors map the sea floor, shipping
channels, waterways, ports and locate currents, shore lines and
other marine features. They are usually associated with marine
When the Sydney Harbour Tunnel was designed and
built, surveyors were involved in almost every stage of planning,
development and construction.
For more information on Hydrography
including the ISA Hydrographic Commission, please click
For other general information on Hydrography please visit the following web sites:
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The Institution of Surveyors, Australia. All rights reserved.