Aerial photo shows constructors working at the construction site of Beizitou grand bridge in Huidong County of Huizhou, south China's Guangdong Province, Oct. 11, 2021. As part of the Guangzhou-Shanwei High Speed Railway, the 112-meter bridge finished its tied-arch closure on Monday. (Xinhua/Liu Dawei)

Aerial photo shows the construction site of Beizitou grand bridge in Huidong County of Huizhou, south China's Guangdong Province, Oct. 11, 2021. As part of the Guangzhou-Shanwei High Speed Railway, the 112-meter bridge finished its tied-arch closure on Monday. (Xinhua/Liu Dawei)

Constructors work at the construction site of Beizitou grand bridge in Huidong County of Huizhou, south China's Guangdong Province, Oct. 11, 2021. As part of the Guangzhou-Shanwei High Speed Railway, the 112-meter bridge finished its tied-arch closure on Monday. (Xinhua/Liu Dawei)

Aerial photo shows constructors working at the construction site of Beizitou grand bridge in Huidong County of Huizhou, south China's Guangdong Province, Oct. 11, 2021. As part of the Guangzhou-Shanwei High Speed Railway, the 112-meter bridge finished its tied-arch closure on Monday. (Xinhua/Liu Dawei)