Salvage archaeology

Rescue archaeology, sometimes called preventive archaeology, salvage archaeology, commercial archaeology, contract archaeology, or compliance archaeology, is state-sanctioned, for-profit archaeological survey and excavation carried out in advance of construction or other land development. These conditions could include, but are not limited to, highway projects, major construction, the flood plain of a proposed dam, or even before the onset of war. Unlike traditional survey and excavation, rescue archaeology must be undertaken at speed. Rescue archaeology is included in the broader categories that are cultural resource management (CRM) and cultural heritage management (CHM).

Rescue archaeology occurs on sites about to be destroyed but, on occasion, may include in situ preservation of any finds or protective measures taken to preserve an unexcavated site beneath a building. Urban areas with many overlaid years of habitation are often candidates for rescue archaeology.

The focus of early work was to set up organisations to undertake rescue excavations shortly before an area was disturbed by construction equipment. Archaeologists relied on the goodwill of the developer to provide the opportunity to record remains. In more recent use, an archaeological survey may be required by planning process or building law, as with PPG 16 or PPS5 in the United Kingdom and NPPG5 in Scotland. Common conditions required by planning authorities are archaeological field survey, watching briefs, shovel test pits, trial trenching, and excavation. Guidance and standards of practice in the UK are largely monitored through the Institute for Archaeologists

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