The Department of Disaster Prevention and Mitigation (DDPM) warns that Rama VI Dam will increase water discharge to 600-700 cubic meters per second from 28-29 Sep 2026. Residents along the Pa Sak River in Tha Ruea, Nakhon Luang, Phra Nakhon Si Ayutthaya, and Bang Pa Han districts of Phra Nakhon Si Ayutthaya Province are advised to move belongings to higher ground.
On 28 Sep 2026, the Department of Disaster Prevention and Mitigation (DDPM) warned that Rama VI Dam would increase water discharge to 600-700 cubic meters per second from 28-29 Sep 2026. This will cause the water level downstream of the Pa Sak River behind the dam to rise approximately 1-1.2 meters, affecting riverside and lowland areas outside flood protection embankments in Tha Ruea, Nakhon Luang, Phra Nakhon Si Ayutthaya, and Bang Pa Han districts. Residents living along the river and in low-lying areas outside embankments are urged to move belongings to higher ground, relocate vehicles, and care for vulnerable groups.
The DDPM, in collaboration with mobile network providers AIS, True, and NT, has sent warnings via Cell Broadcast to inform residents along the Pa Sak River in Tha Ruea, Nakhon Luang, Phra Nakhon Si Ayutthaya, and Bang Pa Han districts of Phra Nakhon Si Ayutthaya Province about the increased water discharge from Rama VI Dam.
A reporter noted that water conditions in Tha Ruea district have worsened significantly after Rama VI Dam raised the red flag alert and discharged water at 556 cubic meters per second on 27 Sep 2026. This caused rapid water level rises in the Pa Sak River, especially overnight, flooding the road in front of Tha Ruea fresh market—a key riverside economic area—with water nearly 50 centimeters deep.
In the morning, vendors and residents still waded through floodwaters to enter and exit the market for buying and selling goods. Some shops were affected by water entering their sales areas and storefronts, forcing temporary closures for safety.
Tha Ruea Municipality has mobilized engineering teams and deployed water pumps at vulnerable points along the road beside the Pa Sak River to quickly drain water off the road surface, minimizing the impact on residents and restoring normal traffic as soon as possible.
Meanwhile, the increased water discharge from Rama VI Dam has also affected communities near Wat Satoo, located downstream of the dam. More than 10 households have been flooded, with residents moving valuables and important items to higher ground after receiving government warnings via Cell Broadcast.
Some residents have evacuated their homes and set up temporary shelters within the Wat Satoo temple grounds to monitor the water situation closely.
Relevant agencies continue 24-hour water level monitoring and urge residents living along the Pa Sak River and in low-lying areas to stay informed as water levels are expected to continue rising during this period.