南京长江大桥是长江上首座由中国设计、采用国产材料建造的铁路、公路两用桥，上层的4车道公路桥长4589米，下层的双轨道铁路桥长6772米。铁路桥连接原来的天津--浦口·和上海--南京两条铁路线，使火车过江从过去一个半小时缩短为现在的2分钟。大桥是南北交通的重要枢纽，也是南京的著名景点之一。南京长江大桥的建成标志着中国桥梁建设的一个飞跃，大大方便了长江两岸的物资交流和人员往来，对促进经济发展和改善人民生活起到了巨大作用。
The Nanjing Yangtze River Bridge is the first rail-road bridge across the Yantze River which was designed by China and constructed with China-made materials.The upper deck is a 4,589 metre-long four-lane road bridge，and the lower deck a 6,772 metre-long double-rail one which joins the original Tianjin-Pukou and Shanghai-Nanjing railway lines，shortening the traveling time across the river from 1.5 hours to 2 minutes. The bridge is not only a significant north-south traffic hub but also a famous scenic spot in Nanjing.The bridge marks a huge progress in China’s bridge construc- tion, greatly facilitating the exchanges of both goods and people on both sides of the Yangtze River and playing a major role in the development of economy and the improve ment of people’s living condition.
