When a flood wave is imminent, the and city officials activate several protocols:
The Odra-Widawa bypass allows a portion of the floodwater to be diverted around the city center.
The city issues "warning levels" followed by "alarm levels" as water heights cross specific thresholds. When a flood wave is imminent, the and
A massive dry polder upstream designed to "shave" the peak of the flood wave before it reaches the city.
The water level at Trestno reached 724 cm , causing widespread devastation. The water level at Trestno reached 724 cm
To protect the city, Wrocław utilizes a complex hydraulic system called the (Wrocławski Węzeł Wodny). This system was significantly modernized following the 1997 floods and includes:
A occurs when heavy or prolonged rainfall (often combined with snowmelt) in the upper reaches of the Odra and its tributaries (such as the Nysa Kłodzka) causes water levels to rise rapidly. As this volume of water moves downstream, it forms a "wave" that eventually reaches Wrocław. The Wrocław Water Node (WWN) As this volume of water moves downstream, it
A network of reinforced levees and designated floodplains (polders) that can be intentionally flooded to reduce pressure on urban infrastructure. Emergency Procedures