Recently, the Gansu Public Resource Trading Center website released the public bidding announcement of the social capital side of the PPP project of the G341 line Jiaonan-Haiyan Highway from Huachi to Shiligoukou. The total investment of the project is 12,466,229,800 yuan.

The main line of the G341 line from Huachi to Ershiligoukou section starts at the south side of Dianliang, Huachi County, and ends at Ershiligoukou in Huanxian County. The route is 98.75 kilometers long. The Tiejiaocheng connection line of 6.77 kilometers and the East Laoye Mountain connection line of 4.45 kilometers are constructed simultaneously. The main line adopts the technical standard of two-way four-lane first-class highway, and the connecting line adopts the technical standard of second-class highway. The construction period is 3 years, in 2021 On December 6, the Provincial Department of Transportation approved the work permit of the project with Ganjiao Permit [2021] No. 576, with an estimated total investment of 12.686 billion yuan.

The starting point of the Wujiao to Huaian project is located in Wujiao Town, Huachi County, and the end point is located in Huai'an Township, Huachi County. The route is 17.63 kilometers long. The Yangshi Development and Reform Commission approved the construction of the Wujiao to Huaian Highway in Huachi County with Qingshi Fa Gai [2021] No. 281, with an estimated total investment of 134 million yuan.

Section G341 from Huachi to Shiligoukou. The total mileage of the route is 98.746 kilometers (including the 1.217km two-car highway reconstruction section), with 91 bridges of 32,570 meters (including the main bridge), including 3,331 meters of extra-large bridges, 28,825 meters of 82 bridges, and 414 of middle bridges. m/6 seats. There are 6410m/7 tunnels, including 4835m/4 long tunnels, 770m/1 middle tunnel and 805m/2 short tunnels. There are 5 intercommunication sites on the whole line, 2 main line toll stations, 1 maintenance work area, 1 PPP project company office, 2 service areas, 1 parking area, 2 tunnel management stations, and 2 connecting lines.

The section from Wujiao to Huaian Highway in Huachi County. The starting point of the project is selected at Wujiao Town, where it connects with K78+465 of Line S506, and the end point is selected at Huaian Township, where it connects with Line G341. It is constructed according to the three-level highway standard, and the route is 17.288km long. The design speed is 40km/h, two-way two-lane, roadbed width is 8.5m, 725m/5 large and medium bridges and 114m/4 small bridges will be built; 96m/2 bridges will be repaired, of which 96m/2 medium bridges will be used for maintenance. There are 29 culverts in the main line, including 16 cover plate culverts and 13 steel corrugated pipe culverts. Key words: engineering news, engineering construction information, Gansu complex

The PPP project of Jiaonan-Haiyan Highway Huachi-Shengligoukou Section of G341 Line is a key project in the "National Highway Network Planning (2013-2030)" and "Gansu Province's "14th Five-Year" Highway and Waterway Transportation Development Plan" , is an important part of G341 Jiaonan-Haiyan Highway in our province, and undertakes a convenient channel and inter-provincial connection channel connecting Gansu and Shaanxi provinces in the national and Gansu provincial road network. Editor/Zhao E