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沂沭泗洪水东调南下方案,是解决沂沭泗洪水的根本措施,该方案业经水利部批准并于1970年开始实施,1979年国家调整基本建设计划时停缓建,仅完成东调南下部分工程。虽是半拉子工程,但在1990年8月洪水以及1991年防洪中,沂沭河东调工程已发挥了巨大效益。——1990年8月2日至6日,8月15日至16日,鲁南沂沭河、苏北邳苍及骆马湖地区突降暴雨、局部大暴雨,大于200毫米降雨强度的雨区有1.8万平方公里。致使沂河临沂站8月16日22时出现洪峰流量5520立方米每秒;沭河大官庄站8月17日4时出现洪峰流量2960立方米每秒。沭河洪水如无东调工程,下游新沂河流量将达7000立方米每秒。而新沂河由于出海口淤积及芦苇
Yishusi Flood Eastward Transfer Project was the fundamental solution to the flood of Yishusi. The plan was approved by the Ministry of Water Resources and started to be implemented in 1970. In 1979, the state suspended the construction of its capital construction plan and completed only the eastern part of the southward transfer engineering. Although it is a semi-sub-project, in the flood of August 1990 and flood control in 1991, the eastward transfer project of Yishu River has exerted tremendous benefits. - From August 2 to August 6, 1990, August 15 to August 16, areas such as the Yushu River in Lunan, the Tuancao and Luomaghu areas in Northern Jiangsu Province suffered heavy downpours, heavy rainstorms and rain areas with a rainfall intensity of more than 200 mm There are 18,000 square kilometers. Resulting in Yiyi Linyi Station at 22 o’clock on August 16 peak flow of 5520 cubic meters per second; Shuhe Dazhuang station at 4:00 on August 17 peak flow 2960 cubic meters per second. If there is no East Lake flood water projects, the downstream Xinyi River flow will reach 7000 cubic meters per second. The Xinyi River silt and reeds due to the sea