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Main Tower of World’s Longest-Spanned Highway Cable-Stayed Bridge Topped Out

Updated: May 12, 2025

The main tower on the north bank of the Guanyinsi Yangtze River Bridge, the world’s longest-spanned highway cable-stayed bridge constructed by China Railway Construction Bridge Engineering Bureau Group Co., Ltd., was successfully topped out on May 6.

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The main tower on the north bank of the Guanyinsi Yangtze River Bridge was successfully topped out on May 6. [Photo/sasac.gov.cn]

The milestone marks a major breakthrough and paves the way for the subsequent construction of the main girders and cable-stay systems.

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Construction site of the main tower on the north bank of the Guanyinsi Yangtze River Bridge [Photo/sasac.gov.cn]

As a key control project of the Wuhan-Songzi Expressway, the Guanyinsi Yangtze River Bridge features a main bridge stretching 1,860 meters, with a central span of 1,160 meters and a 262-meter-tall north tower. The bridge holds five world records, including the longest span for a highway cable-stayed bridge and for a hybrid composite girder cable-stayed bridge. It is also the first in the world to use a hybrid steel-UHPC structure over a 1,000-meter span. Additionally, it features the largest-diameter friction pile group foundation, and the widest and heaviest precast sliding concrete girder segments constructed using the short-line match-casting method.

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Aerial view of the construction site of the Guanyinsi Yangtze River Bridge [Photo/sasac.gov.cn]

The bridge is expected to be closed in the second half of 2026. Once completed, it will contribute to the development of China’s transportation infrastructure, enhancing the backbone road structure of the Yangtze River Economic Belt, improving the expressway layout in Hubei Province, and supporting the province’s coordinated regional development strategy.



(Executive editor: Wang Ruoting)