The 1642 Yellow River flood or Kaifeng flood was a man-made disaster that principally affected Kaifeng and Xuzhou. Kaifeng is located on the south bank of the Yellow River, prone to violent flooding throughout its history. During the early Ming dynasty, the town was the site of major floods in 1375, 1384, 1390, 1410, and 1416. By the mid-15th century, the Ming had completed restoration of the area's flood-control system and operated it with general success for over a century.