Yujiandong Canal is located in Jianyukou, southeast of Gaotang Town. It was built by local people from June 1953 to March 1954. 1958 10 extended to 1960. 1963165438+10 to 65438+February, and the supporting facilities will be renewed. By the end of 1989, the main canal of Jiandong Canal had a total length of 12km from Dongjianyukou in the south to Zhang Zhu Village in the north, and there were three branch canals, including 1 intake sluice, 65,438 sluice gates and aqueducts, 2 culverts, 3 spillway bridges and tunnel/kloc-0.
Yujianxi Canal, located at Xiyukou, Dongyang Town, north to Wei Jiayuan, with a total length of 6.5 kilometers, was completed from1October 28th to1October 28th 1960. 196 1 to 1963, supporting facilities continued. By the end of 1989, there were 48 buildings in the canal, with an irrigation area of 4,000 mu for facilities and 2,500 mu for effective irrigation, and the actual irrigated farmland was 1900 mu, which were distributed in three administrative villages: Nanbao, Touai and Liu Ma.
Hua county Irrigation District of Yujian Reservoir is based on Yujian Canal Irrigation District, which is 2.4 kilometers wide from east to west and 7 kilometers long from north to south. From the winter solstice of 1976 to the end of 1989, 1 main canal with a length of1660m, 4 branch canals with a length of10950m, and 36 buildings have been built.
Weinan Irrigation District of Yujian Reservoir includes 29 main canals, branch canals and bucket canals 129, with a total length of 106 km, including 3 lining canals1km and various buildings 1074, with a national investment of 5,087,400 yuan. Yujian Reservoir Irrigation District, located in the Loess Plateau, is often dry in summer and has no harvest in autumn. People suffer from food shortage and are eager for water. Therefore, many advanced people who live in reservoirs used to have picnics, collect hard rocks in summer and dig frozen soil in winter. 1980 The actual irrigation area is 6800 mu. In the 12th year of Daoguang (1832) and the 8th year of Tongzhi (1869), the Chishui River levee was built twice.
1954 From March 17 to April 10, the county mobilized 26,007 laborers in 47 townships and completed the regulation works of Shidi River and Luowen River. At the same time, the river courses in Yuxian and Xixi were rectified and stone revetment was carried out.
In the same year, from July 10 to August 29th, the county mobilized13,250 laborers from four districts 17 townships, and jointly completed the regulation project of Chishui River from Caiguo Village to Chishui Bridge with Weinan County.
1949 after the establishment of the people's government, Cheng's hometown set up a river defense management office to assign special personnel to manage the river embankment. During the period of 1978, the Weihe levee was heightened and the protective branch dike of Chishui River was reinforced, with a total length of 2.2 kilometers. It can ensure the safety of four villages and farmland such as Chishui, Xinzhuang, Jia Min and Qinglong. Yujian Reservoir is located at Jianyukou at the junction of Linwei District in the southwest of Dongyang Township, Hua County. The water source is Yujian River, with a controlled basin area of 3 1. 1 km2, a total storage capacity of 3 1.4 million cubic meters, an effective storage capacity of 2.65 million cubic meters, a dead storage capacity of 79,000 cubic meters and a flood detention capacity of 4 1.65438+. The dam is a mixed earth-rock dam with a height of 58.6m, a crest length of 196m and a dam width of 5 m. The spillway is located on the east side of the dam, which is a side weir open-flow tunnel with a maximum overflow flow of 278 cubic meters per second. The drainage facility is a water conveyance tunnel with a maximum displacement of 22 cubic meters per second. The facility irrigation area is 36,000 mu, and the effective irrigation area is 20,000 mu.
Weinan County1February 1969 started the construction of the library, and1June 1976 completed the hub project. From 1970 to 1972, it was jointly built by Wei and Hua counties, and more than 300,000 workers were invested in Dongyang and Shengshan in Hua county. Later, according to the spirit of the relevant meeting held by Weinan Revolutionary Committee in June 1972 65438+ 10/0/3, hua county withdrew its labor force to build a library. By the end of 1979. Coupled with the supporting projects of irrigation area, the water supply is basically completed. A total of 0/0.5 million cubic meters of earth and stone were moved, 200,000 cubic meters of rock were excavated, and 77,000 cubic meters of concrete were used.