State of Conservation
6
Reports
3
Properties
1
States Parties
Threats* :
![](/web/20151217082511im_/http://whc.unesco.org/uploads/states/small/pk.gif)
Year: 1997
Other Threats: Deterioration of the bricks due to salt crystallization and hydration
Document Source: WHC.97/CONF.208/04B,WHC.97/CONF.208/08B
![](/web/20151217082511im_/http://whc.unesco.org/uploads/states/small/pk.gif)
Year: 1995
Other Threats: Deterioration of the bricks due to salt crystallization and hydration
Document Source: WHC.95/CONF.201/04
![](/web/20151217082511im_/http://whc.unesco.org/uploads/states/small/pk.gif)
Year: 1991
Other Threats: Deterioration of the bricks due to salt crystallization and hydration
Document Source: SC.91/CONF.002/03
![](/web/20151217082511im_/http://whc.unesco.org/uploads/states/small/pk.gif)
Year: 2004
Danger List: Yes
Other Threats: Need for consolidation and conservation measures of the hydraulic work
Document Source: WHC-04/28.COM/15A.Rev
![](/web/20151217082511im_/http://whc.unesco.org/uploads/states/small/pk.gif)
Year: 2007
Other Threats: Significant decay of the property caused by the local climatic conditions
Document Source: WHC-07/31.COM/7B
![](/web/20151217082511im_/http://whc.unesco.org/uploads/states/small/pk.gif)
Year: 2006
Other Threats: poor state of conservation
Document Source: WHC-06/30.COM/7B
* :
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”).
** : All mission reports are not always available electronically.