Rama VI Dam Raises Red Flag as Waters Rise
Rama VI Dam raised a red flag as the Pasak River water level surges in Ayutthaya, with authorities warning downstream residents to move belongings to higher ground as flooding continues outside embankments.
Rama VI Dam has hoisted a red flag warning downstream residents as the Pasak River water level continues to rise. Officials forecast the water level could increase another meter, with communities outside the embankment already flooded. Residents are urgently moving belongings to higher ground.
On September 28, 2025, the flooding situation in Ayutthaya province has taken a more critical turn after Rama VI Dam increased water discharge, causing continuous rises in the Pasak River. The red flag has been raised above the dam to alert people living downstream along both banks of the river in Tha Ruea, Nakhon Luang, and Ayutthaya districts to prepare and relocate their possessions. Water levels in the Pasak River are expected to rise another approximately one meter.
The community near Wat Satue in Tha Ruea, Ayutthaya, is already flooded as water levels overflow the riverbank. Residents in at-risk areas are gradually moving their belongings, household items, and valuables to higher ground to prevent damage from further water level increases.
Ekachai Samneang Mai, head of the water allocation and irrigation system improvement division for the Lower Pasak Project, revealed that water is currently flowing into Rama VI Dam at approximately 200 cubic meters per second from the Chao Phraya River side and about 500 cubic meters per second from the Pasak River, totaling around 700 cubic meters per second at the dam.
Water management operations include releasing about 50 cubic meters per second into Rapeepat Canal and discharging approximately 650 cubic meters per second downstream. The project had previously warned residents about a discharge plan at 600-700 cubic meters per second, which would cause the Pasak River to rise and potentially overflow into surrounding areas, particularly communities outside the embankment.
Ekachai stated that residents along the Pasak River in at-risk areas have been continuously warned, and some areas have already begun relocating belongings to higher ground. The red flag has been raised at Rama VI Dam as a warning symbol to alert downstream residents to exercise caution and prepare for rising water levels.
Regarding future trends, rainfall is expected to decrease, which should improve water management and discharge operations, allowing the Pasak River water level to gradually recede. However, water levels from Pasak Cholasit Dam must be closely monitored, as it currently holds approximately 96 percent capacity.
Within one to two days, it may be necessary to gradually release water from Pasak Cholasit Dam to prevent water levels from reaching the spillway. Irrigation authorities have prepared comprehensive management plans for both rainwater and upstream water to maintain balanced conditions while continuously monitoring levels and warning at-risk residents.
As a warning measure, the dam has hoisted a red flag as a warning symbol to alert residents downstream of Rama VI Dam and prepare them to relocate belongings to higher ground. Continuous public announcements about the situation are being issued.
