余井大闸渠是1955年冬建闸时开挖的,渠长6,030公尺,比降为1∶1,500,正常流量为0.3个秒公方,流速为0.5秒公尺。不仅可以保证7,000亩田的灌溉,而且可以使36口塘常年不脱水,养角53,000尾,同时它还可以畅泄山洪水入大河,减轻了圩内低凹田3,000亩的涝灾,从此保证了大面积的水稻连年获得了丰收。为了更进一步地综合利用水利资源,又在这条渠上建立了八个水力站,已有六个先后投入生产,已建成的四个粮食加工厂,加工了稻谷590余万斤,纸厂 The Yujing Sluice Gate was excavated during the winter sluice in 1955 with a channel length of 6,030 meters and a drop ratio of 1: 1,500. The normal flow rate was 0.3 seconds and the flow rate was 0.5 seconds. Not only can guarantee the irrigation of 7,000 mu of land, but also can make 36 ponds do not dehydrate all the year round, with 53,000 rearing angles, and it can also relieve floods and floods into rivers and alleviates floods in 3,000 mu of lowland in the Wei River. The area of ​​rice year after year has received a good harvest. In order to further comprehensively utilize water conservancy resources, eight hydraulic stations have been set up on the canal. Six of them have been put into production and four food processing plants have been built successively. 590 tons of paddy have been processed and the paper mills