Jiangjin (Chongqing-Guizhou Border)-Xishui-Gulin (Guizhou-Sichuan Border) Expressway is located in Xishui County, Guizhou Province. It is connected with Jianghe section of G93 Chengdu-Chongqing Ring Road Expressway in the north, Guogao-Naxu section of G76 Xiarong Expressway in the west, across G4215 Rongzun Expressway in the middle and links Tongzi County in Guizhou in the east. The expressway has great significance in connecting the adjacent areas between Sichuan, Chongqing and Guizhou and boosting the local economy as well as tourism.

The expressway includes 7 extra-large bridges/ 7004.9m, 88 large or medium bridges/ 22352m, 1 long tunnel/ 2532.5m, medium and short tunnels/ 4268.5m, with bridge and tunnel ratio of 45%. Complexity in technology and high bridge-tunnel ratio characterize the project. The expressway has total length of 80.996km including a suspension bridge Chishui River Bridge with main span of 1200m, adopts standard of 24.5m width and four-lane, with designed speed of 80 km/h.

Jiangjin-Xishui-Gulin Expressway is our first BOT project outside Sichuan Province, played an exemplary role as the “First Piece Project” and “Highlight Project”, vigorously advocated advanced technology and construction methods, actively promoted the "Four New Technologies", and created Quality Engineering.