The Sanchahe Special Bridge is the tallest bridge on the Qinghai-Tibet Railway. The Sanchahe Special Bridge stands on the north side of the famous Yuzhu Mountain Peak. It is located at the confluence of Xiaonanchuan and Bisongou on the Qinghai-Tibet Plateau. It is the tallest bridge on the Qinghai-Tibet Railway. The bridge is more than 3,800 meters above sea level.