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杨庄滞洪区是经国家计委批准兴建的河南省“八.五”期间治淮重点工程,是小洪河防洪除涝的骨干工程,最大滞洪库容2.55亿立米,工程总投资1.52亿元。滞洪区建成后,可将小洪河下游河道防洪标准提高到10年一遇,其中杨庄至五沟营河段提高到20年一遇,多年平均防洪除涝效益15.6万亩,年经济效益0.58亿元。杨庄滞洪区淹没处理设计标准为20年一遇洪水,滞洪水位69.68米,淹没面积58.5平方公里,迁移安置人口27339人,迁安工程投资7000万元,占整个工程投资的
Yangzhuang flood detention area is approved by the State Planning Commission to build Henan “eight five ” during the key projects to treat Huai River flood control and drainage is the backbone of the project, the maximum detention flood storage capacity of 255 million cubic meters, the project a total investment of 152 million yuan. After completion of the flood detention area, the flood control standards for the lower reaches of the Xiaohong River can be raised to 10 years, of which the Yangzhuang-Wugou Yinghe section has been raised to once in 20 years, the average annual flood prevention and waterlogging benefit has reached 156,000 mu, and the annual economic benefits 0.58 billion yuan. Yangzhuang flood detention area flood treatment design standards for floods in 20 years, stagnant flood level 69.68 meters, flooded area of 58.5 square kilometers, resettlement population 27339 people, Qian’an project investment 70 million yuan, accounting for the entire project investment