一、總論石漫灘水库位於河南舞陽縣境内洪河上游的北潦河上,控制洪河上游流域面积約215平方公里。此地百年一遇的洪水為400秒公方,常年洪水在250至300秒公方之間。在根治淮河總的规划要求下,本水库于1951年汛期以前基本完成了可以攔蓄水库上游的全 I. General The Shimanan Reservoir is located on Beiliao River in the upstream of Honghe in Wuyang County of Henan Province and controls the upper reaches of the Honghe River with an area of ​​about 215 square kilometers. The once-in-a-hundred-year flood here is 400 seconds, and the annual flood is between 250 and 300 seconds. In the general planning requirements of the radical Huaihe River, the reservoir basically completed before the flood season in 1951 can stop the reservoir upstream