Zaha Hadid Architects secured first place in the Danjiang Bridge International Competition back in 2015, presenting a concept that aimed to keep the structure’s visual footprint as light as possible. Their proposal introduced a dramatic single concrete pylon supporting a 920-metre cable-stayed span. Construction officially launched in 2019, setting the stage for what is now recognised as the world’s longest asymmetric cable-stayed bridge supported by a single mast. By October 2025, the final section of the steel deck was installed, joining the east and west sides of Taiwan’s Tamsui River estuary for the first time and confirming the bridge’s scheduled opening on May 12, 2026.

Positioned at the mouth of the Tamsui River—one of Taipei’s most significant waterways—the Danjiang Bridge plays a vital role in a broader regional infrastructure modernisation effort. The bridge is designed to ease congestion on local routes by creating a direct connection between Highway 2 on the eastern side and Highway 15, the West Coast Expressway (Route 61), and the Bali–Xindian Expressway (Route 64) to the west. It also supports major improvements to the northern coastal transport network, relieving pressure on the heavily used Guandu Bridge located 5 km upstream, and enhancing travel between Tamsui District, Linkou District, central Taipei, New Taipei City, Taoyuan International Airport, and the Port of Taipei.

The design by ZHA also incorporates future mobility needs, including space for the extension of the Danhai Light Rail transit system across the river, as well as dedicated paths for cyclists and pedestrians. Advanced 3D modelling and detailed analysis of the estuary guided the placement of the sculptural mast and the elevation of the deck, ensuring smooth passage for river traffic and preserving the iconic sunset views cherished along the Tamsui waterfront. By utilising a single-mast structure, the project significantly minimises impact on the riverbed and aligns with rigorous environmental protection measures established to safeguard the estuary’s delicate ecosystem.

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