The culture minister said canal dredging was ordered around the historic sites, while flood embankments were raised another half metre higher, from the existing height of more than one metre.
She said related agencies were informed to be on high alert to collaborate on flood response.
A call centre using telephone number1765 was launched to receive reports on potential flooding at historic sites.
Meanwhile, following recent floods in the Sukhothai provincial seat, Fine Arts Department director-general Somsuda Leeyavanich said that historic sites there have not been affected by flooding.
The province has prepared high-capacity water pumps to help drain water within 24 hours in case of possible flooding at the historic sites.