The Odra-Widawa bypass allows a portion of the floodwater to be diverted around the city center.

The water level at Trestno reached 724 cm , causing widespread devastation.

Constant tracking of water levels at gauges like Trestno (the key monitoring station for Wrocław).

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 massive wave arrived, but thanks to better coordination and sandbagging, the city remained largely dry despite levels reaching 650 cm .

Closing floodgates, securing drainage systems, and deploying mobile flood barriers in low-lying areas like Ostrów Tumski or the Zoo . Historical Context

The city issues "warning levels" followed by "alarm levels" as water heights cross specific thresholds.

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)