1975年8月,地处河南省周口、驻马店地区的淮河支流洪汝河、沙颖河流域突降特大暴雨,不但是淮河流域短时最大降雨,而且还创下了全国乃至世界最高纪录。大暴雨从8月4日开始到8日止,这次特暴雨,酿成了特大洪涝灾害,即震惊中外的淮河“758” 灾难。新中国成立后淮河流域第一批建成的板桥、石 August 1975, located in Zhoukou, Henan Province, Zhumadian Huaihe tributaries of the Hongru River, Shaying River Basin sudden heavy rainfall, not only the Huaihe River basin short-term maximum rainfall, but also hit the highest record in the country and the world. The torrential rains began on August 4 and ended on the 8th. This special torrential rain caused a catastrophic flood disaster that shocked the Huaihe River and the “758” catastrophes both at home and abroad. After the founding of new China Huaihe River Basin built the first batch of Banqiao, stone