Bad Schandau was badly hit by the flooding of the Elbe in the years 1845, 2002 and 2006. The floodwater on 16/17 August 2002 stood at 9.78 m above average, 4.28 m above the market square and 3.46 m high in the church. The Schöna gauge reached 12.04 (Bad Schandau gauge 11.88), volumetric flow 4,780 m³/s. The high-water mark was 4 cm below that of 1845. On 3 April 2006 a high-water mark of 6.78 m and 1.28 m above the market square above average was reached at about 11 pm. Schöna gauge 8.88, volumetric flow 2720 m³/s. The square floods when the Schöna gauge reaches 7.60.