Winner 2023

Award for
pushing the boundaries of asymmetric long-span bridge design

Project Description

Spanning 292m across the Youshui river valley, this high-speed railway bridge is the world's longest-span asymmetric arch bridge. It features a deck-type concrete-filled steel tube (CFST) arch structure. As a landmark for the 2200-year-old ancient town in the Xiangxi region its design is based on imagination and innovation and exists in harmony with the beautiful natural environment.

Judge’s comments

With the topography, geology, and existing road conditions fully considered, this bridge is designed with an innovative large-span concrete-filled steel tube trussed arch, providing safety and comfort for high-speed train rides. Representing an important milestone in the history of bridge engineering in China, it exemplifies the construction of high-speed railway arch bridges in mountainous areas.

The arch feet were carefully placed to avoid unnecessary construction infrastructure and to also protect the natural environment, while the erection process involved an impressive catenary hoist system.

Project overview

Structural Designer

  • China Railway SIYUAN Survey and Design Group Co. Ltd.

Client Name

  • China Railway SIYUAN Survey and Design Group Co. Ltd.


  • Hunan Province, China


  • Wen Wangqing

Principal Contractor

  • China Railway SiIYUAN Survey and Design Group Co. Ltd.

Key Contractors

  • Huai Shao Heng Railway Co, Ltd (Project Owner)

    Yan Aiguo (Project Lead)

    The Fifth Engineering Co., Ltd MBEC (Contractor)

Year Submitted

  • 2023

Key attributes

  • Profession