tianyong expressway is the tianshuibao (ninggan boundary) expressway via qingcheng to yonghe (ganshan-shanxi boundary) for short "tianyong expressway". it is a national highway network plan (2013-2030) north-south vertical line yinchuan to baise country an important part of the expressway (g69) is a major provincial construction project determined by the provincial government.
the starting point of the tianyong expressway is tianshuibao town, huanxian county, qingyang city, and the ending point is yonghe township, zhengning county. it passes through 25 towns and villages in 5 counties, namely huanxian, qingcheng, heshui, ningxian, and zhengning. connect to g69 shaanxi section. the total length of the project route is 303 kilometers, of which the main line is 279 kilometers long, and the zhengning expressway connecting line is 24 kilometers long. the estimated approval is 34.93 billion yuan and the construction period is 4 years.