In July 1997 , the city was heavily affected by a flood of the River Oder , the worst flooding in post-war Poland , Germany and the Czech Republic . About one-third of the area of the city was flooded . An earlier equally devastating flood of the river took place in 1903 . A small part of the city was also flooded during the flood in 2010 . From 2012 to 2015 , the was renovated and redeveloped to prevent further flooding . It cost more than 900 million PLN ( c. 220 million euro )
flood in 2010
2010 Central European floods
Wrocław