The Jinjiazhuang Special Long Spiral Tunnel on the Yan-Chong Expressway

The Jinjiazhuang Extra-long Spiral Tunnel on the Yan-Chong Expressway is a key project of the 2022 Beijing Winter Olympics and is a separated extra-long tunnel. The left side of the tunnel is 4,228 meters long and the right side is 4,104 meters long. …

The Mica Mountain Tunnel of the Baxian Expressway

The tunnel is 13.8 kilometers long and is currently the longest expressway tunnel in Southwest China and the second longest in the country that has been completed. The excavation at the exit end of the tunnel reached 8,008 meters, which is the longest…

Luding Dadu River Bridge on Ya 'an-Kangding Expressway

The steel truss girder suspension bridge with a main span of 1,100 meters is a long-span bridge built in a high-altitude, high-intensity seismic zone and complex wind field environment. It is known as the "First Bridge of Sichuan-Tibet" and …

The Red Army Bridge over the Chishui River

The steel truss girder suspension bridge, with a total length of 2,009 meters and a main span of 1,200 meters, is the worlds tallest tower among mountain canyon Bridges (the top of the bridge tower is 503 meters above the bottom of the Chishui River v…

The Harrogland Bridge in Norway

A steel box girder suspension bridge with a main span of 1,145 meters and a main bridge span of 1,553 meters. The suspension bridge with the largest span within the Arctic Circle, known as the "Bridge with the Aurora", was completed in Decem…

The Xihoumen Cross-Sea Bridge in Zhoushan, Zhejiang Province

The steel box girder suspension bridge with a main span of 1,650 meters ranked first in China and second in the world when it was completed, and is hailed as "the No. 1 Bridge in China". The bridge is a project supported by the national &quo…

The Canakkale Bridge in Turkey in 1915

Spanning the Dardanelles Strait at the western end of the Sea of Marmara in Turkey and connecting Europe and Asia, it is a double-tower, three-span suspension bridge with six lanes in both directions. The main span of the bridge is 2,023 meters long, …