Aerial photo taken on Jan. 18, 2021 shows the Yunwu Bridge in Guiding County, southwest China's Guizhou Province. As part of the Duyun-Anshun expressway, the 1,720-meter bridge which finished its final stage for closure on Monday, shortens the travel distance between southwest China's Yunnan Province and Guizhou Province. (Xinhua/Yang Wenbin)

Aerial photo taken on Jan. 18, 2021 shows the Yunwu Bridge in Guiding County, southwest China's Guizhou Province. As part of the Duyun-Anshun expressway, the 1,720-meter bridge which finished its final stage for closure on Monday, shortens the travel distance between southwest China's Yunnan Province and Guizhou Province. (Xinhua/Yang Wenbin)

Aerial photo taken on Jan. 18, 2021 shows the Yunwu Bridge in Guiding County, southwest China's Guizhou Province. As part of the Duyun-Anshun expressway, the 1,720-meter bridge which finished its final stage for closure on Monday, shortens the travel distance between southwest China's Yunnan Province and Guizhou Province. (Xinhua/Yang Wenbin)

Aerial photo taken on Jan. 18, 2021 shows the Yunwu Bridge in Guiding County, southwest China's Guizhou Province. As part of the Duyun-Anshun expressway, the 1,720-meter bridge which finished its final stage for closure on Monday, shortens the travel distance between southwest China's Yunnan Province and Guizhou Province. (Xinhua/Yang Wenbin)