Year of inscription on the World Heritage List 1987
Year(s) of inscription on the List of World Heritage in Danger N/A
Previous Committee Decisions see page https://whc.unesco.org/en/list/414/documents/
Requests approved: 0
Total amount approved: USD 0
For details, see page https://whc.unesco.org/en/list/414/assistance/
UNESCO Extra-budgetary Funds
Previous monitoring missions
November - December 2004: World Heritage Centre/ICOMOS reactive monitoring mission
Factors affecting the property identified in previous reports
Urban development pressures in the areas surrounding the property
Illustrative material see page https://whc.unesco.org/en/list/414/
Conservation issues presented to the World Heritage Committee in 2012
The State Party submitted a report on the state of conservation of the property on 7 February 2012.
The report was compiled by the National Institute of Anthropology and History (INAH) and includes information on the process of assessment of the physical state of conservation of the inscribed property and the recommendations made. The recording forms for each of the areas and monuments are also enclosed. The work carried out constitutes an important database in guiding decision-making and identifying priorities for interventions. The main factors and causes of decay affecting the fabric are identified. In addition to deterioration resulting from environmental and natural causes, the report underscores that both the lack of maintenance and the issues related to inadequate or non-functioning drainage systems and shelters are important in areas currently closed to the public. The presentation and homogeneity in the use of protective shelters is also mentioned as these have different designs and materials depending on the time period in which they were installed.
The report also notes that access to areas not excavated or closed to the public need stronger restrictions to mitigate deterioration generated by accumulation of trash, structural wear and vandalism. It also notes the need to install walkways and barriers in areas that receive the largest flow of visitors to mitigate impact on stucco reliefs and wall paintings. It indicates that the maintenance and monitoring that the excavated areas require cannot be sustained with the allocated resources and funds given the extent of the task.
Analysis and Conclusions of the World Heritage Centre, ICOMOS and ICCROM
The World Heritage Centre and the Advisory Bodies consider that although the report submitted by the State Party provides information on current physical conservation conditions of the monumental areas of the property, it does not respond to the recommendations made by the World Heritage Committee at its 34th session (Brasilia, 2010). No guidelines have been submitted for conservation interventions and no information is provided on the progress made towards the concrete implementation of the management system that was prescribed in the Management Plan. Similarly, the report does not provide updated information on how other issues that have been identified as pressing concerns for the property, its buffer zone and wider setting, particularly in respect to peddlers, land use and urban development, are being addressed. No additional information was submitted in regard to the light and sound show proposals nor is the current status of the project mentioned. No explanation on the functioning of the inter-institutional commission proposed in the Management Plan was included.
The World Heritage Centre and the Advisory Bodies recommend that the State Party provides additional information on the aforementioned issues and encourages it to fully implement the Management Plan for the property and to secure the resources for its sustained operation.
Decision Adopted: 36 COM 7B.101
The World Heritage Committee,
1. Having examined Document WHC-12/36.COM/7B,
2. Recalling Decision 34 COM 7B.111, adopted at its 34th session (Brasilia, 2010),
3. Acknowledges the information provided by the State Party on the conservation conditions of the property and encourages it to use the resulting baseline documentation for the development of a priority action plan and for subsequent monitoring of conditions;
4. Urges the State Party to take the necessary steps to ensure the full implementation of the Management Plan and to secure the required human and financial resources for its systematic and sustained operation;
5. Requests the State Party to submit additional information on the state of conservation of the property, its buffer zone and wider setting and their related regulations, and on actions being taken to address pressing concerns, including peddlers, land use and urban development and reiterates its request to elaborate conservation guidelines for intervention, including those for drainage systems and protective shelters;
6. Invites the State Party to submit to the World Heritage Centre and ICOMOS any new proposals for development and public use at the property, in accordance to Paragraph 172 of the Operational Guidelines, for review prior to approval and implementation;
7. Also requests the State Party to submit to the World Heritage Centre, by 1 February 2014, an updated report on the state of conservation of the property and the implementation of the above, for examination by the World Heritage Committee at its 38th session in 2014.