山东济南齐鲁大道北延工程黄河大桥主桥长度1170米,双向八车道一级公路标准,主跨径420米,是世界最大跨度下承式网状系杆拱桥。 As the north extension project of Qilu Avenue inJinan,Shandong Province, 1170m long HuangheBridgewas constructed as per the
bidirectional eight-lane first-class highway standard. With the main span of
420m, it is a through tied-arch bridge with the world 's largest span.