Thailand Raises Chao Phraya Dam Discharge to Control Water Levels
The Royal Irrigation Department announced that the Chao Phraya Dam is discharging 2.5 million cubic metres per second to manage high water levels. Measurements show flows of 2,132 cubic metres per second at Nakhon Sawan and 2,500 cubic metres per second at the dam, with upstream levels steady at +17.71 metres. The department will gradually increase outflow to control levels and reduce risks, issuing further updates if conditions change.
The Royal Irrigation Department provided an update on the Chao Phraya River situation, stating that the Chao Phraya Dam is releasing 2.5 million cubic metres of water per second. It noted that water inflow to the dam remains substantial, necessitating a rise in outflow to suit the situation. On 4 October 2026 at 06:00, the department reported: flow at the C.2 station in Mueang Nakhon Sawan was 2,132 cubic metres per second, showing a downward trend; flow at the C.13 station at the Chao Phraya Dam in Chai Nat was 2,500 cubic metres per second, with the upstream water level at +17.71 metres above mean sea level, remaining stable. Although some upstream areas have seen water levels start to drop, the volume reaching the dam is still high, with water accumulating upstream. The department must incrementally increase discharge to manage levels and reduce risk to areas above the dam, adjusting in stages to limit the speed of level rise and lessen downstream impacts. Should upstream levels rise further, boosting flow through the dam, additional updates will be issued as needed.
