On Saturday, construction of the main suspension structure of a cross-river rail bridge, a key section of the Chongqing-Kunming High-speed Railway, was officially completed. Spanning the Tuojiang River in Luzhou City, southwest China's Sichuan Province, the mega-railway bridge is 2,613 meters in length, with a design speed of 350 kilometers per hour. The Chongqing-Kunming High-speed Railway, linking two major cities of China's southwest, will slash the travel time between them from nearly five hours to just two hours when it is completed in 2025.