People work at the construction site of Fenghuang Road Yellow River Bridge in Jinan, east China's Shandong Province, Feb. 2, 2021. (Xinhua/Wang Kai)
JINAN, Feb. 3 (Xinhua) -- The Fenghuang Road Yellow River Bridge, the world's longest-span three-tower self-anchored suspension bridge, finished the construction of its main structure of towers recently. The 6,683-meter-long self-anchored suspension bridge is expected to open to traffic at the end of 2021. 
Combo aerial photo shows the construction site of Fenghuang Road Yellow River Bridge in Jinan, east China's Shandong Province, on March 8, 2019 (top), on April 3, 2020 (middle), and on Feb. 2, 2021 (bottom) respectively. (Xinhua/Wang Kai)
Photo taken on Feb. 2, 2021 shows the construction site of Fenghuang Road Yellow River Bridge in Jinan, east China's Shandong Province. (Xinhua/Wang Kai)
Aerial photo taken on Feb. 2, 2021 shows the construction site of Fenghuang Road Yellow River Bridge in Jinan, east China's Shandong Province. (Xinhua/Wang Kai)
Aerial photo taken on Feb. 2, 2021 shows the construction site of Fenghuang Road Yellow River Bridge in Jinan, east China's Shandong Province. (Xinhua/Wang Kai)
A man works at the construction site of Fenghuang Road Yellow River Bridge in Jinan, east China's Shandong Province, Feb. 2, 2021. (Xinhua/Wang Kai)
Photo taken on Feb. 2, 2021 shows the construction site of Fenghuang Road Yellow River Bridge in Jinan, east China's Shandong Province. (Xinhua/Wang Kai)
A man works at the construction site of Fenghuang Road Yellow River Bridge in Jinan, east China's Shandong Province, Feb. 2, 2021. (Xinhua/Wang Kai)
