Get you up to speed: Taiwan’s record-breaking 3,000ft long bridge can withstand earthquakes | News Tech
Taiwan has opened the Danjiang Bridge, the world’s longest single-mast cable-stayed bridge, spanning 920 metres across the Tamsui River near Taipei. The bridge, engineered to withstand earthquakes of magnitude seven and above, is expected to alleviate traffic congestion by linking major highways in the region.
The Danjiang Bridge features real-time monitoring systems that alert authorities if structural limits are exceeded, ensuring safety for users. Although construction began in 2019, previous delays stemmed from environmental reviews and redesigns that lasted nearly 30 years before the structure’s completion in October last year.
Taiwan’s Highway Bureau announced the official opening of the Danjiang Bridge, stating it is designed to alleviate chronic traffic congestion in the region by connecting key highways. Real-time monitoring systems have been implemented to ensure safety, with alerts in place to impose traffic restrictions if structural limits are exceeded.
What remains unclear — It is not specified when the full integration of the Danhai light rail network across the river will be completed.
Taiwan opens world’s longest cable-stayed bridge designed for earthquakes
The spectacular Danjiang Bridge in Taiwan, which is now open to the public (Picture: Highway Bureau, MOTC/Cover Media)
Taiwan has opened the world’s longest single-mast cable-stayed bridge – a 920-metre structure engineered to withstand earthquakes of magnitude seven and above.
The Danjiang Bridge spans the mouth of the Tamsui River near Taipei and connects Bali District with New Taipei City.
Designed by Zaha Hadid Architects, the bridge’s main span measures 450 metres, around 30 metres longer than Russia’s Yugra Bridge which had held the world record since 2000.
Officials say the new crossing will ease chronic traffic congestion by linking major highways and expressways on both sides of the river.
The Cloud Gate Dance Theatre perform on the bridge during the opening ceremony (Picture: Liu Chen-Hsiang/Cover Media)
Taiwan’s Highway Bureau confirmed the bridge was specially engineered for the island’s seismic conditions because of its location on the boundary of active tectonic plates.
State-of-the-art sensors have been installed throughout the structure to monitor wind forces, cable stress and the bridge’s overall structural integrity in real time.
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If readings exceed safe limits, the system automatically alerts the bridge control centre so traffic restrictions can be introduced to reduce pressure on the crossing.
Designed by Zaha Hadid Architects, the Danjiang Bridge features a 200-metre concrete mast and a 450-metre central span (Picture: Highway Bureau, MOTC/Cover Media)
The bridge’s striking single-mast design was developed to maximise structural performance while preserving views of the sunset over the Tamsui estuary.
Its sculptural concrete mast rises 200 metres into the air and was intentionally designed to remain as slender as possible while supporting the huge central span during extreme weather and seismic events.
Dedicated pedestrian walkways and cycle lanes have also been included, along with provisions for a future extension of the Danhai light rail network across the river.
The 920-metre-long Danjiang Bridge spans the mouth of the Tamsui River near Taipei (Picture: Highway Bureau, MOTC/Cover Media)
Although the bridge’s main structure was completed in October last year, crews have spent recent months laying asphalt and installing lighting, sound barriers and additional road facilities ahead of its public opening.
Plans for the Danjiang Bridge were first put forward almost 30 years ago but were repeatedly delayed by environmental reviews, redesigns and failed bidding processes before construction finally began in 2019.
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