The next day , the river level rose above the 2008 flood peak level of 15.36 m. At the peak of the flooding , 80 % of the town was flooded , the worst the town ever experienced . By the next day , the river surpassed the 2008 flood peak level of 15.36 m. At the peak of the flooding , 80 % of the town was flooded , the worst the town ever experienced .