Salvage

Major forms

• Maritime salvage: recovering vessels, cargo or persons from the water using towing, patching, lightering, pumping, lifting and refloating techniques; often involves specialized ships, divers and remotely operated vehicles.
• Vehicle and aircraft salvage: recovering or dismantling wrecked vehicles and planes for repair, parts or scrap; legal terms such as salvage value and salvage title affect ownership and insurance.
• Salvage recycling: reclaiming materials from demolished or discarded goods, including metals, electronics and building materials, for reuse and waste reduction.
• Rescue or salvage archaeology: rapid excavation and documentation of sites threatened by construction, erosion or flooding to preserve artifacts and contextual information.
• Salvage logging and disaster salvage: removal of trees or debris after fires, storms or outbreaks; can have economic benefits but also ecological trade-offs.

Legal, economic and environmental aspects

Salvage is regulated by legal frameworks that balance compensation, ownership, public interest and environmental protection. In maritime cases, law provides for awards to salvors based on value rescued and risk taken; contracts may be agreed in advance or emergency work performed under general principles. Insurance uses salvage value to determine residual worth of lost property. Environmental concerns shape tactics and priorities: preventing pollution from fuel or cargo, minimizing habitat damage during removal, and weighing ecological impacts of salvage logging or wreck clearance.

Techniques, safety and heritage

Methods range from underwater cutting and patching, heavy lifting and lightering to careful excavation, documentation and conservation of artifacts. Salvage operations require risk assessment, safety procedures, contamination control and often multidisciplinary teams. When cultural heritage is involved, in situ preservation, recording and conservation are emphasized to retain scientific and historical value.