Sevilla floodgates closed for the second time in history

Sevilla authorities have closed the Vega de Triana floodgates along the Guadalquivir River as a precautionary measure following heavy rainfall and adverse weather caused by Storm Leonardo. Civil protection services acted early on Thursday to reduce the risk of flooding in low-lying areas of the city.

Officials stressed that the measure was preventive, not in response to an imminent breach, and marks only the second time in history that these floodgates have been lowered. The gates were first activated in March 2025, highlighting the exceptional nature of current conditions. Authorities said that lowering the barriers now helps protect the city against sudden river surges, which could occur if rainfall continues at the current intensity.

Function of the Floodgates

The Vega de Triana gates are a key component of Sevilla’s hydraulic defence system, designed to contain river water and prevent overflow into adjacent urban areas. The barriers, when lowered, create a watertight seal to control the flow of the Guadalquivir and reduce the risk of flooding in historically vulnerable districts such as Triana. Emergency teams continue to monitor the gates to ensure they function correctly.

The city’s mayor emphasised that the floodgates were lowered as a precaution rather than as a response to active flooding. Some public spaces along the river, including parks and sports facilities, were temporarily closed to protect the public. In addition, Local Police and Protección Civil have intensified patrols along riverbanks and urban areas near the river to respond rapidly to any localised incidents.

Storm Leonardo’s Effect on Sevilla

In Sevilla, river levels have climbed sharply, reaching approximately 1,600 cubic metres per second, still below the 3,000 cubic metres per second threshold considered critical for severe flooding. Authorities have asked residents to remain vigilant and avoid unnecessary travel near riverbanks. Civil protection teams are stationed throughout the city to respond to any emergencies, while drainage and river channels have been maintained to reduce the likelihood of minor flooding in streets adjacent to the Guadalquivir.

Officials stressed that early activation of the floodgates is part of the city’s risk management strategy, ensuring that even with continued rainfall, low-lying urban areas remain protected. The proactive approach demonstrates how preventive infrastructure measures can mitigate the impact of extreme weather events before they escalate into emergencies.

Impact of Storm Leonardo Across Andalucía

Beyond Sevilla, Storm Leonardo has caused widespread disruption across Andalucía. Torrential rain and strong winds have led to thousands of evacuations, flooding of homes, road closures, and interruptions to rail transport. Emergency services have been responding to fallen trees, blocked streets, and power outages in multiple provinces. Rivers and reservoirs in Cádiz, Málaga, Granada, and other areas have reached critical levels, prompting authorities to move residents to temporary shelters to ensure safety.

Some towns have been entirely evacuated due to the risk of landslides or structural damage caused by heavy rainfall. While Sevilla has so far avoided severe flooding, these regional impacts underline the intensity of Storm Leonardo and the need for preventive action such as the closure of the Vega de Triana floodgates.

Public Advisory and Preparedness

Officials in Sevilla have maintained a message of calm, highlighting that the city’s flood defence infrastructure remains effective despite elevated river levels. Residents are encouraged to monitor official communications and follow guidance from emergency services. The mayor emphasised that while the current situation is controlled, vigilance is necessary, particularly if the storm continues.

Authorities also reminded residents that infrastructure measures such as floodgates are most effective when combined with public cooperation. Avoiding travel near riverbanks, reporting blocked drains, and adhering to emergency advisories helps ensure the city remains safe as Storm Leonardo progresses.

Ongoing Monitoring

Sevilla’s civil protection teams continue to monitor the river and surrounding areas closely. Authorities are ready to take additional measures if water levels rise further. The activation of the floodgates demonstrates the city’s commitment to proactive flood management, protecting residents and property while avoiding unnecessary alarm. By acting early, the city aims to reduce risk and provide reassurance amid one of Andalucía’s most significant storm events in recent years.