Aerial photo taken on Dec. 2, 2020 shows the Xiangjiang river grand bridge along the Zunyi-Yuqing highway in clouds in southwest China's Guizhou Province. The main structure of the Xiangjiang river grand bridge on the Zunyi-Yuqing highway was completed on Thursday. The bridge has a length of over 1,700 meters and a main span of 560 meters. (Photos: Xinhua/Liu Xu)

Aerial photo taken on Oct. 1, 2020 shows the Xiangjiang river grand bridge along the Zunyi-Yuqing highway before its closure in southwest China's Guizhou Province.

Aerial photo taken on Nov. 16, 2020 shows the Xiangjiang river grand bridge along the Zunyi-Yuqing highway under construction in southwest China's Guizhou Province.

Aerial photo taken on Nov. 16, 2020 shows the Xiangjiang river grand bridge along the Zunyi-Yuqing highway under construction in southwest China's Guizhou Province.

Construction workers are seen on the Xiangjiang river grand bridge along the Zunyi-Yuqing highway in southwest China's Guizhou Province, Dec. 3, 2020.

Aerial photo taken on Nov. 16, 2020 shows the Xiangjiang river grand bridge along the Zunyi-Yuqing highway under construction in southwest China's Guizhou Province.

Aerial photo taken on Oct. 1, 2020 shows the Xiangjiang river grand bridge along the Zunyi-Yuqing highway before its closure in southwest China's Guizhou Province.

Aerial photo taken on Dec. 2, 2020 shows the panoramic view of Xiangjiang river grand bridge along the Zunyi-Yuqing highway under construction in southwest China's Guizhou Province.

A construction worker is seen on the Xiangjiang river grand bridge along the Zunyi-Yuqing highway in southwest China's Guizhou Province, Dec. 3, 2020.

Aerial photo taken on Oct. 1, 2020 shows the Xiangjiang river grand bridge along the Zunyi-Yuqing highway before its closure in southwest China's Guizhou Province.

Aerial photo taken on Dec. 3, 2020 shows the panoramic view of Xiangjiang river grand bridge along the Zunyi-Yuqing highway after its main structure completion in southwest China's Guizhou Province.