Taiwan’s Danjiang Bridge Set to Become the World’s Longest

The construction of the Danjiang Bridge in Taiwan is nearing completion, with the bridge set to become the world’s longest single-tower, cable-stayed bridge. The project, which has cost approximately NT$12.49 billion (about £295.3 million), is scheduled to officially open on May 12, 2026. Recent images reveal that the main structure has been finalized, with the last segment of steel decking connecting both banks of the Tamsui River estuary.

This impressive bridge features an asymmetric design, with its longest span measuring 450 metres. Supported by a single, 200-metre-tall concrete mast, the cable system is engineered to endure extreme weather and seismic activity. Authorities anticipate that the Danjiang Bridge will alleviate traffic congestion on surrounding small roads by linking major highways on either side of the Tamsui River.

Moreover, the bridge is expected to significantly reduce travel times. It will cut the distance between Bali and Tamsui from both sides of the river by 15 kilometres, translating to approximately 25 minutes saved during transit.

Zaha Hadid Architects, the studio behind the bridge’s design, emphasized that the structure is a vital component of the region’s extensive infrastructure improvement initiatives. “Danjiang Bridge is the world’s longest single-tower, asymmetric cable-stayed bridge and is integral to the region’s comprehensive infrastructure upgrading program,” the firm stated. The design aims to create a bridge mast with a sculptural silhouette, minimizing obstruction of sunset views for residents and visitors alike.

Utilizing advanced 3D modeling and mapping techniques, Zaha Hadid Architects ensured safe navigation for river vessels while preserving scenic viewpoints along the river. The single-mast design also aims to reduce the bridge’s ecological impact on the riverbed, adhering to strict programs established to safeguard the estuary’s ecosystem.

With the primary structure now finished, the final stages of construction will involve laying asphalt on the roadway, installing lighting, and conducting structural load tests. The Danjiang Bridge will also include dedicated lanes for pedestrians and cyclists upon its opening next year.

Zaha Hadid Architects has previously contributed to significant projects, including the 60,000-seat Xi’an International Football Centre in China and a multi-storey leisure complex in Hong Kong designed to resemble a village. The completion of the Danjiang Bridge marks a notable achievement in modern engineering and urban development in Taiwan.