National Highway 307 is a national highway in China, which is called Huanghua-Shandan Highway, referred to as Huangshan Line (formerly Yinqi Line), also known as National Highway 307 and G307 Line. The planning starting point is Huanghua City, Cangzhou City, Hebei Province, and the planning ending point is Shandan County, Zhangye City, Gansu Province. National Highway 307 passes through Hebei, Shanxi, Shaanxi, Ningxia, Inner Mongolia and Gansu provinces.
National Highway 307, formerly known as Qiyin Highway, is called Yinqi Line for short. Qi refers to Qikou Village, Nanpaihe Town, Huanghua City, Cangzhou City, Hebei Province, and Yin refers to Yinchuan. The original planned mileage is 1, 35 1 km, and the destination of the national expressway network planning (20 13-2030) is Yinchuan, Ningxia.
Road contour
In March, 2022, various projects connecting the east extension of Hebei Huibei Second Ring Road with the auxiliary road of National Highway 307 are being stepped up, and the 333-meter overpass bridge is basically completed. In April 2022, the rerouting project of National Highway 307 was fully launched. In August, 2022, the pouring task of the last piece of precast T-beam of National Highway 307 was successfully completed. The rerouting project of Fenyang Transit Highway of National Highway 307, with a total length of 27. 194 km.
Among them, the reconstructed section 13.2km and the newly-built section 13.99km start from Guandao Village, Xinghua Village Town, and connect with the G307 connecting line of Fenping Expressway in the southwest direction, pass through Fen boundary line and Xiaofen line to Liufen line, and end at hebei village, Li Jiazhuang Township.