Weinan Weihe Grand Bridge, Railway bridge in Linwei District, China

The Weinan Weihe Grand Bridge is a 79.732-kilometre railway bridge on the Zhengzhou–Xi'an High-Speed Railway. It crosses the Wei River twice and also passes over the Ling, Luofu, Xi and Shi Di rivers, as well as highways and other railways. It was built with 2,300,000 cubic metres of concrete and 45,000 tons of steel.

Construction of the bridge was finished in 2008, but it opened to traffic only with the Zhengzhou–Xi'an High-Speed Railway on 6 February 2010. At completion it was the longest bridge in the world, until two bridges on the Beijing–Shanghai High-Speed Railway surpassed it in 2010; it now ranks third. Building it took at least 10,000 workers, 2,300,000 cubic metres of concrete and 45,000 tons of steel.

The bridge carries the Zhengzhou–Xi'an High-Speed Railway, opened on 6 February 2010, so passengers between the two cities cross the Wei River twice without leaving their seats. Its Chinese name, Weinan Weihe Grand Bridge, ties it to Weinan in Linwei District and to the Wei River it spans.

The bridge carries the Zhengzhou–Xi'an High-Speed Railway, opened on 6 February 2010, and trains run across its 79.732-kilometre length between Zhengzhou and Xi'an. The structure crosses the Wei River twice and also passes over the Ling, Luofu and Xi rivers, highways and other railways. Riders see the river crossings from the train windows; the deck itself has no walking access.

The bridge crosses the Wei River twice and also passes over the Ling, Luofu, Xi and Shi Di rivers, as well as highways and railways. At 79.732 km it was the world's longest bridge when finished in 2008, until two Beijing–Shanghai high-speed line bridges surpassed it in 2010.