December 9, 1958 (October 29), the Reform Movement, the end of the Sanmenxia closure works. the Sanmenxia the Sanmenxia


built water conservancy project, the closure works all end on December 9, 1958. The project started construction on April 13, 1957, is located in the middle reaches of the Yellow River in Henan Province Shan County, Shanxi Province and Pinglu County, radical, and the development of Yellow planning the biggest and the most important one for flood control, power generation, irrigation works. Yellow River after closure could result in a 3,500 square kilometer reservoir, the water capacity of 64.7 billion cubic meters, 4,000 acres of irrigated farmland.