Pengbu Bridge, Road bridge in Hangzhou, China

Pengbu Bridge, also called the Second Qiantang River Bridge, carries the Shanghai–Kunming railway and a four-lane road on the same level but as two separate parallel structures. The railway bridge is 2,861.4 m long and the road bridge, just downstream, is 2,112.1 m long; their centrelines are 16.4 m apart. It links Sibao in northern Hangzhou with Yingfeng in Xiaoshan.

Construction began on 21 April 1988 and the bridge opened to traffic on 21 December 1991, with formal opening on 1 April 1992. It was the world's first large bridge built on a river section with strong tidal bores, carrying the Shanghai-Kunming railway and a road on the same level but fully separated. The railway span was single-track with provision for doubling, which was carried out in 1997; the road bridge was closed for rebuilding in May 2020 and reopened in August 2021.

The bridge serves as a daily link for commuters and commercial traffic between Hangzhou and surrounding areas, making it an essential part of how the region moves. It reflects how modern infrastructure has reshaped travel patterns and connected previously distant communities.

The road bridge, on the downstream side and 16.4 m from the railway bridge, carries four lanes and was closed for renovation from 10 May 2020 to 21 August 2021, after which it became part of Hangzhou's urban street network rather than the Hangzhou-Ningbo expressway. The railway bridge stayed open throughout and carries the Shanghai-Kunming line between Hangzhou East and Yingning stations.

While crossing the bridge, you get unexpected views of the Qiantang River, which is famous for its powerful tidal currents. This natural characteristic makes the bridge a feat of engineering designed to withstand the river's strong forces.