Puli Bridge, located on the Puli-Xuanwei Motorway across Puli Canyon, is one of the critical projects on the Puli-Xuanwei Motorway, and the first steel box girder suspension bridge on motorways in mountainous regions in China. Its main span and side spans are 628 metres and 166 metres respectively. The main bridge adopts single-span streamlined single-box & single-cell, flat steel box girder structure; the total length of the steel box girder is 626.7 metres, and its total width is 28.5 metres; the bridge has 53 segments.