In late August 1931, a typhoon struck Shanghai following a series of storms making landfall in China. The typhoon contributed to China's worst recorded flooding, causing a break in the levee along Lake Gaoyou and the Grand Canal. The breaks flooded a portion of northern Jiangsu, including 80 towns, killing 300,000 people, according to contemporaneous news reports. In the city of Gaoyou, the levee break killed 2,000 people in the middle of the night. In August 1975, Typhoon Nina struck the Chinese province of Fujian and progressed into central China, dropping torrential rainfall totaling over three days in the province of Henan. The resulting floods caused 64 dams to fail, including the large Banqiao and Shimantan dams, which directly killed 26,000 people and indirectly killed another 100,000 people. Damage from the floods was estimated at US$6.7 billion, one of China's most destructive floods on record.