Guanshan Bridge is a 2-pylon & 1-span suspension bridge with its span of 580 metres; the main span stiffening girder is a flat streamlined enclosed steel box girder; the bridge is divided into 49 girder segments for fabrication, which are connected by full section welding. The girder segments are 12 metres (standard segment), 13.0 metres (central segment) and 9+9.5 metres (end beam segments are divided into two segments) long respectively; the maximum weight of a girder segment is 153.7 tons.