海南省规模最大的公路桥———琼州大桥近日全面峻工并已交付使用。该桥位于南渡江下游 ,全长1 396.98m。琼州大桥横跨南渡江 ,桥梁主跨采用五孔钢管混凝土拱结构 ,桥梁宽 2 3m。琼州大桥按城市桥梁标准建设 ,双向四车道 1 5m ,两侧非机动车道各 1 .5m ,人行道各 1m ,绿化带各 Hainan Province, the largest highway bridge --- Qiongzhou Bridge completed a full round and has been delivered. The bridge is located in the lower reaches of Nandu River, a total length of 1 396.98m. Qiongzhou Bridge across the Nandu River, the main span of the bridge using five-hole concrete-filled steel arch structure, the bridge width of 23m. Qiongzhou Bridge construction standards by the city bridge, two-way four lanes 15m, non-motorized lanes on both sides of each 1.5m, sidewalks of 1m, with green belt