Aizhai Bridge (Ai'zhai Bridge), a high-speed passage in Xiangxi Tujia and Miao Autonomous Prefecture, Hunan Province, China, is located above the Deqi Grand Canyon. It is a component of the northwest highway in Jishou City and a key control project of Baotou-Maoming Expressway (National Expressway G65). Construction of Aizhai Bridge started on October 28, 2007; the main bridge Helong project was completed on August 20, 2011, and the bridge was opened to traffic on March 31, 2012, and the opening ceremony was held. Aizhai Bridge started at the west of the Potou Tunnel, up the Grand Canyon of Germany, and east to Aizhai Tunnel No. 3; The line is 1779 meters long and the main bridge is 1414 meters long; the bridge is a two-way four-lane expressway with a design speed of 80 km/h