On July 29, 2022, the Sichuan Provincial Department of Transportation's Engineering Construction Project Tendering and Bidding Management Information Network released the results of the technical consultation, review and evaluation of the survey and design process of 9 expressway construction projects including the expansion of the Sichuan border of the Suining-Chongqing Expressway. The Sichuan Provincial Highway Planning, Survey and Design Institute Co., Ltd. won the bid, the ZX2 section Sichuan Transportation Survey and Design Institute Co., Ltd. won the bid, and the ZX3 section Sichuan Highway Engineering Consulting and Supervision Co., Ltd. won the bid.

Suining-Chongqing Expressway Expansion in Sichuan

The route is planned to start from the Osmanthus Interchange of Chengnan Expressway, and form a cross-hub interconnection with Chengnan Expressway and Suihui Expressway. The route will be expanded along the original Suining-Chongqing Expressway, passing through Chuanshan District, Economic Development Zone, High-tech Zone, Anju District, and ending in Sichuan. The Shufangba in the boundary of Chongqing Province is connected to the expanded Chongqing section of the Suining-Chongqing Expressway. The total length of the route is about 46.4 kilometers. It is planned to adopt the standard expansion of a two-way eight-lane expressway, with a design speed of 100 km/h and a roadbed width of 41 meters. Set up bridges of 4264 meters/26; no tunnels; bridge-to-tunnel ratio is about 9.18%; set up 9 interchanges.

Zigong to Yongchuan Sichuan Expressway

The route is planned to start from Xianshi Town, Yantan District, Zigong City, passing through Xindian Town, Niufo Town, Huilong Town, Fushun Qilong Town, Da'an District, Huangjia Town, Xiangshi Town, Shengdeng Town, and Hujia Town, Longchang City, Neijiang City , Yunding Town, Jin'e Street, Shiyanqiao Town, Jiaming Town, Lu County, Luzhou City, Yusi Town, ending near Yufeng Village, Fangdong Town, and connecting Zigong to Yongchuan Expressway Chongqing section. The total length of the route is about 57.1 kilometers. The whole line adopts the standard of two-way six-lane expressway, with a design speed of 100 km/h, 7575 m/39 bridges, 910 m/1 tunnel, and a bridge-to-tunnel ratio of about 14.9%. Set up 10 intercommunications.

S36 Dazhu to Dianjiang Expressway

The route is planned to start near Shiyan Village, Paifang Township, Dazhu County, connect with Baomao Expressway, and extend westward to connect with G42 Shanghai-Chengdu Expressway double-track expressway, passing through Shuangkouzhai, Honghua Village, Guanjia Village, Gaoxue Town, Laochangba, Ronghua Village, crosses Tongluo Mountain, passes Xinfeng Village, Tongjia Village, Dalingjiagou, Yuzhu Village, connects with Chengxuan-Dalin Expressway, crosses Mingyue Mountain, and connects with Dianfengwu Expressway at the provincial boundary between Sichuan and Chongqing. Road access. The total length of the route is about 34.5 kilometers. It is proposed to adopt the two-way six-lane expressway standard, with a design speed of 100 km/h and a roadbed width of 33.5 meters. Set up 9544.425m/26.5 bridges; set up 8620.699m/1.5 tunnels; the bridge-tunnel ratio is about 52.7%; set up 4 interchanges.

S48 Line Leshan to Yingjing Expressway

The route is planned to start in Mouzi Town, Central District, Leshan City, and connect the planned Zizhong to the end of the Leshan Expressway project, and cross the planned Tianmei-Le Expressway. The route passes through Ganjiang Town and Shuangfu Town, Qiliping Town and Wawushan Town in Hongya County, Wangyu Town in Yucheng District, Ya'an City, Qinglong Township in Yingjing County, and crosses with Yaxi Expressway and connects to the planned Tianfu New Area via Qionglai to Yingjing Expressway. The total length of the route is about 100.5 kilometers. It is proposed to adopt the two-way four-lane expressway standard, with a design speed of 80/100km/h and a subgrade width of 25.5/26m. Set up 40,436m/132 bridges (including 13,802m/10 extra-large bridges, 23,721m/76 bridges, 2,640m/36 middle bridges, and 297m/10 small bridges); set a total tunnel length of 29,847m/14 ( Among them, there are 18,040m/3 extra-long tunnels, 6,445m/3 long tunnels, 5,017m/7 medium tunnels, and 345m/1 short tunnel); the bridge-to-tunnel ratio is 70.55%. Set up 11 intercommunications.

Qionglai via Lushan to Yingjing Expressway

The project consists of the main line and the Baoxing branch line. The main line is planned to start at Kongming Street, Qionglai City, and then connect to the Tianqiong Expressway under construction and connect with the Qiongming Expressway. Qinglong Town, Yingjing County, is connected to the planned Leying Expressway and Yaxi Expressway, with a total length of about 104.8 kilometers. The Baoxing branch line is planned to start from Luyang Street, Lushan County, with the Renjia Junction connected to the main line, and the latter route will be laid out to the northwest, passing through Lingguan Town, and ending near Guanyan Mountain on the south side of Baoxing County. The total length of the route is about 22.6 kilometers. The entire line of this project adopts the technical standards of expressways. The design speed of the high-speed section from the starting point to the Chengdu Metropolitan Ring Line is 120km/h, with six lanes in both directions, and the width of the roadbed is 34.5m; Lane, the width of the roadbed is 26m; the design speed of Yakang Expressway to the dead point is 80km/h, two-way four-lane, and the width of the roadbed is 25.5m; the design speed of Baoxing branch line is 80km/h, two-way four-lane, and the width of the roadbed is 25.5m. The main line of the project has 40,675m/105 bridges; 27,950m/13 tunnels; the bridge-tunnel ratio is 65.46%; 13 interchangeable interchanges, 2 service areas and 1 parking area are set up. Baoxing branch line has 2997m/15 bridges, all of which are bridges; 17695m/6 tunnels are set up; the bridge-tunnel ratio is 91.62%;

Leshan Airport Special Line Expressway

The route is planned to start at the south side of Guanying Town, Wutongqiao District, Leshan City, connecting with Leyi Expressway, connecting to the airport by expressway to the west, and renovating and using the Wutongqiao connecting line of Leyi Expressway to the east to the intersection of Jingang Avenue and connecting to Wutongqiao District; the route spans After Leyi Expressway, continue to the west, turn to the northwest near Daojialin and connect to the planned reserved corridor of the airport, then follow the reserved corridor to the front of the airport terminal. The total length is about 7.02km. It is proposed to adopt the standard of two-way four-lane expressway, with a design speed of 80 km/h and a roadbed width of 25.5 meters. Set up bridges of 1375 meters/8; no tunnels; bridge-to-tunnel ratio of 19.6%; set up 1 interchangeable interchange.

Expansion of G76 Chongqing-Chengdu Expressway:

The route is planned to start from Sangjiapo, connect to the Chongqing section of the G85 Yinkun Expressway to be renovated and expanded, pass through Shinian Town and Jieshi Town in Longchang City, Yongxing Town, Shunhe Town and Tianjia Town in Dongxing District, Neijiang City; The Neijiang City Transit Expressway is reconstructed and expanded to Shuangcai Hub; through Fuxi Town, Dongxing District, Neijiang City, Sujiawan Town, Chonglong Town, Shuanglong Town, Zizhong County, Shiling Town, Kanjia Town, Wuhu Town, Yanjiang District, Ziyang City Huang Town, Dongfeng Town, Baotai Town, Baohe Town, Laojun Town, crossing the Tuojiang River and passing through Xinshi Street, Jianyang City, Chengdu; using the existing G76 Expressway for reconstruction and expansion, passing through Shiqiao Street, Shipan Street to Dabaoshi The hub is interconnected; it ends at Gaodong and connects to the Chengdu east-west axis urban road under construction, with a total length of about 189.6 kilometers. The intercommunication section from the starting point Sangjiapo to Dashibao hub is constructed according to the standard of two-way eight-lane expressway. In the intercommunication section from Sangjiapo to Tianjia hub, the design speed is 100 km/h, and the width of the roadbed is controlled at 41.5 meters; Tianjia hub is interconnected to Shuangcai For the interchange section of the hub, the design speed is 100 km/h, and the width of the roadbed is controlled at 41 meters; for the intercommunication section of the Shuangcai hub to the Jiepai hub, the design speed is 120 km/h, and the width of the roadbed is controlled at 42 meters; the Jiepai hub is connected to The intercommunication section of the Dabaoshi hub is approximately 100 km/h, and the width of the roadbed is controlled at 41.5 meters; the intercommunication section between the Dabaoshi hub and Gaodong is constructed according to the standard of a two-way six-lane expressway, and the design speed is 100 km/h. The width of the roadbed is controlled at 34 meters; the Longchang branch line is constructed according to the two-way four-lane expressway standard, the design speed is 100 km/h, and the width of the roadbed is controlled at 26 meters. The main line is equipped with 35698.2m/157 bridges and 2630m/1 tunnel. The bridge-to-tunnel ratio is 20.2%. Set up 32 interchanges.

Chengdu-Wenchuan Expressway Chengdu-Pengzhou Section

The route is planned to start from the interchange between the two ancient cities, connect to the Shaxi Expressway, cross the Qingbai River to Taipingchang, pass Guanjianian, Yuanjia Alley, Lanjia Alley, Lichun Town, Huabei, and Mutou River, on the east side of Guihua Town. The Osmanthus hub is set up to connect with the G0511 Chengdu Economic Zone Ring Line High Speed; the route continues northwards through Shimen Village and Cifeng Town, and ends at Tongji Town after crossing the Jianjiang River. The total length of the route is about 40.2 kilometers. It is proposed to adopt the two-way six-lane expressway standard, with a design speed of 100 km/h and a roadbed width of 33.5 meters. Set up 26176m/27 bridges; set up 4660m/3 tunnels; the bridge-to-tunnel ratio is 76.6%; set up 6 interchangeable interchanges.

Chengdu to Wenchuan Expressway Pengzhou to Wenchuan Section

The route is planned to start in Tongji Town, Pengzhou City, and connect with the end point of the Chengdu-Pengzhou section of the Chengdu-Wenchuan section of the expressway. The route proceeds in the northwest direction, crossing the Jinjiang River Valley twice, passing Xiaoyudong, Longmenshan Town, and crossing Longmen. The mountain is connected with the proposed Chuan-Wenzhou Expressway to set up a hub, and then the route continues to move forward in the northwest direction, connecting the Wen-Ma Expressway in Keku Township, with a total length of about 50.3 kilometers. It is proposed to adopt the standard of two-way four-lane expressway, with a design speed of 80 km/h and a roadbed width of 25.5 meters. Set up 5722m/10 bridges; set up 42745m/5 tunnels; set up bridge-tunnel ratio of 96.42%; set up 3 interchangeable interchanges. Expansion of Suining-Chongqing Expressway: The route is planned to start from Osmanthus Interchange of Chengnan Expressway, and form a cross-hub interconnection with Chengnan Expressway and Suihui Expressway. The route will be expanded along the original Suining-Chongqing Expressway, passing through Chuanshan District, Economic Development Zone and High-tech Zone. , Anju District, ends at the Shufangba at the Sichuan-Chongqing border, and connects with the expanded Chongqing section of the Suining-Chongqing Expressway (Sichuan border). The total length of the route is about 46.4 kilometers. It is planned to adopt the standard expansion of a two-way eight-lane expressway, with a design speed of 100 km/h and a roadbed width of 41 meters. Set up bridges of 4264 meters/26; no tunnels; the bridge-to-tunnel ratio is about 9.18%; set up 3 interchangeable grades.  Editor/Zhao E