Floodwaters from the Chao Phraya River have submerged Pom Phet Fort, a historic riverside site at the meeting point of the Chao Phraya and Pa Sak rivers, with water nearly one meter deep. Meanwhile, at Wat Chaiwatthanaram, the Fine Arts Department has raised flood barriers by 50 centimeters to handle northern floodwaters and affirmed ongoing prevention and monitoring efforts.
On 2 October 2026, reporters observed that floodwaters from the Chao Phraya River surged into the Pom Phet Fort historic site, located at the confluence of the Chao Phraya and Pa Sak rivers near the Wang Nam Won three-way junction, close to Wat Phanan Choeng Worawihan. This caused the western side of Pom Phet Fort to be completely flooded, with water levels nearly one meter high.
In this area, the Fine Arts Department has not implemented specific flood defenses because the existing embankment at Pom Phet Fort was constructed as a pavilion-style pillar structure with concrete slabs to prevent riverbank erosion, making it unable to block the floodwaters entering the site.
Previously, the Fine Arts Department attempted to use sandbag barriers to stem the water here, but these measures were ineffective. As water levels rose, the floodwaters eventually inundated the historic site.
This location is significant as it is where floodwaters from the Chao Phraya River meet those from the Pa Sak River, which collects water from upstream areas including the Pa Sak Cholasit Dam. The convergence creates strong whirlpools with turbulent currents. During past flood seasons, this area has been the site of boat accidents and fatalities caused by the powerful currents.
Meanwhile, at the Wat Chaiwatthanaram historic site, the Fine Arts Department has raised the flood wall by an additional 50 centimeters to enhance protection against rising waters from the Chao Phraya River. Currently, the flood barriers there can still handle over two meters of further water level increase.
The Fine Arts Department confirmed that it has ongoing prevention and monitoring measures in place for important historic sites, particularly Wat Chaiwatthanaram, which is a key monitoring point in Phra Nakhon Si Ayutthaya province. Officials continue to closely watch water levels to respond promptly if they rise further.