“六五”期间,全国整修、新修了江河堤防,净增加堤防长度8300多公里,黄河下游堤防第三次加高加固工程基本完成,可防御花园口22000立方米/秒洪水;建成潘家口、大黑汀、海子、亭下等13座大型水库,90座中型水库,新增库容160多亿立方米;建成大型水闸40座,中型水闸 During the “Sixth Five-Year Plan” period, the whole country renovated and newly built river embankments, increasing the embankment length by more than 8,300 kilometers. The third embankment project of the lower Yellow River embankment was basically completed to prevent 22,000 cubic meters / second flood in Huayuankou. Daheiting, Haizi, Pavilion under 13 large reservoirs, 90 medium-sized reservoirs, the new storage capacity of 160 billion cubic meters; built a large sluice 40, medium-sized sluice