Sanxianzhou Bridge, Cable-stayed bridge in Fuzhou, Fujian, China

Sanxianzhou Bridge is a single-tower, single-cable-plane prestressed concrete cable-stayed bridge in Fuzhou, Fujian, China. It links Cangshan and Taijiang districts, crossing the Minjiang North Channel and the small island of Sanxianzhou (Fuzhou Jiangxin Park). The main bridge is 577 metres long, with a 238-metre main span and a 117.5-metre inverted-Y pylon.

Construction began in December 1996; the main span closed in October 1998 and the bridge opened on 1 May 1999. It was Fuzhou's fourth Minjiang crossing, designed by the China Railway Bridge Survey and Design Institute under Gao Zongyu and built by the China Railway Bridge Bureau. In 1997 Hong Kong Xiuxing, a China Travel Service subsidiary, formed a joint venture holding a nine-year toll concession; in 2004 the Fuzhou government was taken to arbitration for over 900 million yuan.

The name comes from Sanxianzhou, the small island in the Minjiang that the bridge crosses; the island is now Fuzhou Jiangxin Park. The bridge is also called the Fourth Minjiang Bridge, since it was Fuzhou's fourth crossing of the river. Its route runs from Gongye Road along the Baima River to the Liuyi Road junction at Sancha Street.

The bridge carries the inner-ring route from Gongye Road along the Baima River, over the Minjiang North Channel and Sanxianzhou island, to Shanshan Road and the Liuyi Road/Sancha Street junction. The deck is 28 m wide; the south approach is a double-trumpet interchange. The main tower stands on the island's north bank, 117.5 m tall.

The main span was built by cantilever assembly in four 49-metre units, each split into 14 segments of 3.5 metres joined by wet joints. At completion its largest free cantilever reached 211.5 metres, then the longest for a single-tower prestressed concrete cable-stayed bridge in China. The tower is an inverted Y, 117.5 metres tall, with 104.7 metres above the deck.