However, an extensive survey conducted by the DECC in 2002, consisting of shore-normal survey lines at 50m intervals, provided a good general overview. These were single-beam surveys that depicted rock shelves only in general terms. The only definitive information that could be found, however, was from old charts prepared in the 1950s and 1970s. Searches were made for readily available information that may have shown bathymetry around the grounding site. Although the Newcastle Port Corporation (NPC) was equipped with a multi-beam system and had single-beam equipment available, the Department of Environment and Climate Change (DECC) Coastal Unit were called in at the initial planning stage because of their unique system for surveys in the surf zone. Survey tasks were initially broken down into four categories: location of any existing relevant information shore surveys single-beam surveys and multi-beam surveys. This article looks at the equipment and techniques used in testing conditions and the remarkable results achieved. In the end, both departments made significant contributions to the success of the salvage operation. As part of the large-scale salvage operation, the Survey Section of Newcastle Port Corporation and the Coastal Unit of the Department of Environment and Climate Change were called on to use their high-tech survey systems to provide bathymetry, navigation support and other services to the salvors. On Friday 8 June 2007, the bulk carrierPasha Bulkerran aground in heavy storm conditions on one of Newcastle’s most famous surfing beaches, Nobbys, near the entrance to Newcastle Harbour in New South Wales, Australia.
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