Longest spanning rail arch bridge cements main structure
Updated：2019-12-31 10:34:55 Ecns.cn
Photo taken on Dec. 30 2019 shows the construction site of Nujiang Arch Bridge of Dali-Ruili Railway in Yunnan Province. It is currently the longest-spanning railway arch bridge at 490 meters and will reduce travel time between Dali and Ruili cities from six hours to two.(Source: Yunnan Gateway)
Editor: John Li
Keywords: spanning rail arch bridge