![](http://www.ecns.cn/hd/2023/12/28/1b63a778465441578a004ccb178047d7.jpg)
Aerial view of the construction site of the Shuangbao Grand Bridge, the world's largest double arch bridge, in Chongqing, Dec. 27, 2023. (Photo: China News Network/Chen Chao)
The bridge, part of the Chongqing-Changsha expressway, was connected on Wednesday.
![](http://www.ecns.cn/hd/2023/12/28/cb281db25c5b473583384afdd65b8554.jpg)
Aerial view of the construction site of the Shuangbao Grand Bridge, the world's largest double arch bridge, in Chongqing, Dec. 27, 2023. (Photo: China News Network/Chen Chao)
![](http://www.ecns.cn/hd/2023/12/28/57215500afbe44caa68736ca1ec2fdbc.jpg)
Aerial view of the construction site of the Shuangbao Grand Bridge, the world's largest double arch bridge, in Chongqing, Dec. 27, 2023. (Photo: China News Network/Chen Chao)
![](http://www.ecns.cn/hd/2023/12/28/bae310b50a4743378e407f473041116c.jpg)
Aerial view of the construction site of the Shuangbao Grand Bridge, the world's largest double arch bridge, in Chongqing, Dec. 27, 2023. (Photo: China News Network/Chen Chao)
![](http://www.ecns.cn/hd/2023/12/28/750ebd4309394325a75b5ab3a03d5792.jpg)
Aerial view of the construction site of the Shuangbao Grand Bridge, the world's largest double arch bridge, in Chongqing, Dec. 27, 2023. (Photo: China News Network/Chen Chao)
![](http://www.ecns.cn/hd/2023/12/28/e725182f281e46f1942e345019dfcf7b.jpg)
Aerial view of the construction site of the Shuangbao Grand Bridge, the world's largest double arch bridge, in Chongqing, Dec. 27, 2023. (Photo: China News Network/Chen Chao)