At least 23 people have now died in Europe’s flood disaster as the Polish city of Wrocław sees the level of the Oder river peak and Austria begins planning for “years” of reconstruction. The water level on the Oder river flowing through Poland’s fourth-largest city Wrocław peaked overnight and is expected to stay high for some time, the metrological authority said on Thursday. The water level at the Trestno measuring station just outside the city of 630,000 people was stable at 6.31 metres. Usually the water is a little over 3 metres high. The swollen tributaries of the Oder in south-western P…