Aizhai Suspension Bridge, over the Jishou-Chadong Expressway, in Central China's Hunan province, opens to traffic on March 31, 2012. Crossing Dehang Grand Canyon, the bridge has a main span of 1,176 meters. As a key section of the expressway, the Aizhai bridge includes the standard two-way four-lane motorway, with a speed limit of 80 kilometers per hour and a base width of 24.5 meters. [Photo/Xinhua]

Cars run on the Aizhai Suspension Bridge, over the Jishou-Chadong Expressway, in Central China's Hunan province, as the bridge opens to traffic on March 31, 2012. [Photo/Xinhua]