Photo taken on Dec 11, 2016 shows the Zhanang Bridge across the Yarlung Zangbo River in Zhanang County of Shannan, southwest China’s Tibet Autonomous Region. The 5.7-km-long bridge opened to traffic in 2015. [Photo/Xinhua]

Photo taken on Dec 11, 2016 shows the Zhanang Bridge across the Yarlung Zangbo River in Zhanang County of Shannan, southwest China’s Tibet Autonomous Region. The 5.7-km-long bridge opened to traffic in 2015. [Photo/Xinhua]

Photo taken on Dec 11, 2016 shows the Zhanang Bridge across the Yarlung Zangbo River in Zhanang County of Shannan, southwest China’s Tibet Autonomous Region. The 5.7-km-long bridge opened to traffic in 2015. [Photo/Xinhua]

Photo taken on Dec 11, 2016 shows the Zhanang Bridge across the Yarlung Zangbo River in Zhanang County of Shannan, southwest China’s Tibet Autonomous Region. The 5.7-km-long bridge opened to traffic in 2015. [Photo/Xinhua]