via Bangkok Post, 30 April 2018:
Ruins and ancient sites are always under threat from time and disaster. The great flood of 2011, for instance, damaged 128 archeological sites on and around the city island of Ayutthaya. After the incident, the government provided a budget of 600 million baht for the clean-up and restoration work, and there was also financial and technical aid from Unesco, as well as certain foreign countries.
Source: Preserving history