State of Conservation (SOC)
Gebel Barkal and the Sites of the Napatan Region (2013)
Document Source: WHC-13/37.COM/7B.Add
Humberstone and Santa Laura Saltpeter Works (2013)
Danger List: Yes
Other Threats: a) Extremely fragile nature of the industrial buildings that were constructed using local materials such as timber for frames, corrugated iron sheets for roofs and some walls, in addition to stucco and lightweight construction; b) Lack of maintenance over the past 40 years; c) Corrosion of metal cladding and dismantlement of some of the structural elements. A few buildings such as the Leaching House are liable to structural collapse if no support is given; d) Very little conservation work carried out
Document Source: WHC-13/37.COM/7A.Add
The threats indicated are listed in alphabetical order; their order does not constitute a classification according to the importance of their impact on the property.
Furthermore, they are presented irrespective of the type of threat faced by the property, i.e. with specific and proven imminent danger (“ascertained danger”) or with threats which could have deleterious effects on the property’s Outstanding Universal Value (“potential danger”).