During the Wanli period of the Ming Dynasty, Lu Zhongxin, a magistrate of a county, led fish exploration and Agu spring water to Dongguan, the county seat, around the north and south of the city, and into the waterlogged river. The masses call it Lu Gonghe. In the spring of the forty-first year of Wanli (16 13), Bai Yinghui, the magistrate of a county, in view of Lv Gong and "near Chen Bokou, because of his poor field, he soon forgot to benefit, but listened to his silt instead of dredging it, and the people could not rely on it". At the same time, in addition to the water from Li Yu and Zhiyu, a new river was opened to introduce Lugong River into Nanguan County. People call it Baigong River. Leng Dameng dredges Baigong River in Hou Zhi County. During the Chongzhen period, Zhang Zongmeng, a magistrate of a county, led floods from Baiyun Mountain, passed Tianhe Village and Luoshi Temple to Nanguan, and entered Baigong River and moat. People along the river diverted water to irrigate the fields, and soon the river was silted up. North of the county seat, Zhongyuan, Qu Wei and Xingren Sanli. Fertile land without water conservancy is often caused by drought. Zhang Zongmeng dug a river 20 feet wide and 8 feet deep in the south of Nanlaodian Town, and led the waterlogged water to Laodian Town for irrigation eastward until Longtaifang. At that time, it was agreed that one husband 10 mu of land and one family 10 mu of land would be used as an area one by one. Because Li is here, it is named River. Zhang Zongmeng was abolished soon after he went.
The old return canal was started on February 1st in the 32nd year of the Republic of China (1943) and completed in September in the 36th year of the Republic of China (1947), with a water diversion of 5.2 cubic meters. Divided into east irrigation area and west irrigation area, the original designed irrigation area is 654.38+ 10,000 mu. Due to the lack of public funds, the lower trunk canal and bucket canal projects were not repaired, and only 40 thousand mu were irrigated by 654.38+0955. 1957 Huian chemical plant and Huxian thermal power plant use the waterlogged river as the water source and order waterlogged Qu Hui as the water supply unit. Due to the limited water supply at the source of the river, the water supply for industry and agriculture is insufficient at the same time. With the approval of higher authorities, about10.9 million mu of land below Maying in Donggan Canal was drilled by the state to solve the problem of farmland irrigation, and the channels below Maying were leveled year by year and handed over to local people for cultivation. The irrigation area of the old return canal is reduced to 2 1 10,000 mu.