New Danjiang Bridge Set to Become World’s Longest Structure

The Danjiang Bridge, currently under construction in Taiwan, is poised to become the world’s longest single-tower, cable-stayed bridge, with a construction cost of approximately NT$12.49 billion (estimated £295.3 million). The bridge is scheduled to open on May 12, 2026, and will connect vital roadways on either side of the Tamsui River estuary.

Recently, images of the bridge were released, showcasing its impressive design. The main structure has been completed, featuring the final segment of steel decking that links the two banks of the river. As an asymmetric cable-stayed bridge, the Danjiang Bridge boasts a main span of 450 metres, supported by a 200-metre-tall concrete mast.

Innovative Design and Environmental Considerations

This bridge is designed not only to enhance traffic flow but also to withstand extreme weather conditions and seismic activity. The structure aims to alleviate congestion on smaller roads and reduce traffic on the nearby Guandu Bridge, located five kilometres upstream in New Taipei. It is expected to cut journey times between Bali and Tamsui by 15 kilometres, translating to approximately 25 minutes saved for drivers.

“Danjiang Bridge is the world’s longest single-tower, asymmetric cable-stayed bridge and is integral to the region’s comprehensive infrastructure upgrading program,”

said Zaha Hadid Architects, the firm behind the design. The architects aimed to create a bridge mast with a slim, sculptural silhouette that minimizes the obstruction of sunset views for nearby residents and visitors.

Advanced 3D modelling and mapping techniques were employed to ensure that the bridge does not hinder river navigation while maintaining scenic views. The single-mast design is also aligned with environmental protection programs established to safeguard the estuary’s ecosystem.

Final Preparations and Future Features

With the main structure completed, the project is now entering its final stages. Upcoming tasks include laying asphalt on the road surface, installing lighting, and conducting structural load tests. Once open, the Danjiang Bridge will also feature dedicated lanes for pedestrians and cyclists, promoting increased accessibility for all users.

In addition to the Danjiang Bridge, Zaha Hadid Architects has successfully completed various other projects, including the 60,000-seat Xi’an International Football Centre in China and a multi-storey leisure complex in Hong Kong designed as a village.

The Danjiang Bridge represents a significant advancement in bridge engineering and is expected to play a crucial role in improving the region’s infrastructure, offering both practical transportation solutions and stunning architectural beauty.