Offshore Salvage
The re-floating of ships stranded or sunk in exposed waters is called offshore salvage. In this type of salvage, vessels are exposed to waves, currents and weather and are the most vulnerable and difficult to work on. They also tend to deteriorate more rapidly than such vessels in protected harbours. Offshore salvage may provide only a short window of opportunity for the salvage team due to the need for a high tide or the onset of inclement weather for instance. The work window may not come around again for as long as weeks or months and in the interim, the vessel will continue to deteriorate. As a result, it is often imperative to work quickly. Typically, offshore salvage is conducted from pre-outfitted salvage vessels and tugs. In addition, portable diving facilities may be transported by helicopter or small boat to the work area. From a tactical point of view, working in unprotected waters is less hospitable for floating cranes, construction tenders, dredges and equipment barges. Plus, it is often difficult to depend upon a stable workforce (welders, carpenters, etc.) as all personnel must be present on site for the duration.