In the mysterious Xiangxi Jishou, 20 kilometers away from Jishou, there is one of the eight express highways planned by the state - one of the key projects in the Changsha-Chongqing Passage Hunan section Ji (Shou) Tea () Expressway . He is magnificently spanning between the valleys, with a total length of 1073.65m. The main span of the suspension bridge is 1176m and the vertical height is 366m. The Aizhai Bridge has created four world firsts, greatly improving the traffic status of the two provinces and cities, and is of great significance to the docking of the two provinces and the central and western regions. The Aizhai Bridge has four world firsts one is the main span of the bridge 1,176 meters, spanning the canyon suspension bridge, creating the world's first. The second is the first structural design scheme that completely separates the tower and the beam, creating the world's first. Third is the first to adopt the rail-sliding method to erect steel truss girder, which is the first in the world. Four is the first to adopt the rock anchor sling structure and use carbon fiber as the prestressed reinforced material, which is the first in the world.