itaipu ·
Itaipu closes spillway to contain Iguaçu River flood
Guia 3 newsroom · edited by Annie GrellmannPortuguêsEspañol
Operation ended at 5:32 PM after 26 days of operation
Itaipu Binacional shut the spillway in Foz do Iguaçu on Sunday, October 25, 2026, at 5:32 PM, after keeping it open for 26 days. The action aims to reduce the flow, which is expected to reach roughly 20 million liters per second, and raise the reservoir level before the peak of the Iguaçu River flood forecast for October 26.
Itaipu Binacional decided to close the spillway located in Foz do Iguaçu on the afternoon of 10/25/2026 at 5:32 PM, ending a 26-day period of continuous operation. The closure’s main goal is to lower the amount of water released by the plant, allowing the reservoir to store more volume before the Iguaçu River flood reaches its maximum.
According to forecasts, the Iguaçu River flow should approach 20 million liters per second on Monday, October 26. This measure also seeks to minimize the flood’s impact on the Paraná River, which could rise up to 2.5 meters within 24 hours in the areas of Foz do Iguaçu and Ciudad del Este, Paraguay.
With the spillway closed, the reservoir level is expected to increase by more than 70 centimeters between Sunday and the following days, helping control flooding in the border region.
Source: Rádio Cultura Foz – https://www.radioculturafoz.com.br/2026/10/25/itaipu-fecha-vertedouro-diante-da-previsao-de-pico-da-cheia-do-rio-iguacu
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Content verified by the newsroom based on an official source: Rádio Cultura Foz. Last checked: 10/25/2026. Found something inaccurate? We fix it fast. How we work.
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