A highway bridge under construction over the Yangtze River in Hejiang County, Southwest China's Sichuan Province, July 3, 2019. The completed bridge will be 1,420 meters long, with a main span of 507 meters. It's said to be the world's largest flying-swallow-type CFST arch bridge. The bridge spells the end of more than 250,000 people crossing the river by ferries. (Photo: China News Service)

A highway bridge under construction over the Yangtze River in Hejiang County, Southwest China's Sichuan Province, July 3, 2019. The completed bridge will be 1,420 meters long, with a main span of 507 meters. It's said to be the world's largest flying-swallow-type CFST arch bridge. The bridge spells the end of more than 250,000 people crossing the river by ferries. (Photo: China News Service)

A highway bridge under construction over the Yangtze River in Hejiang County, Southwest China's Sichuan Province, July 3, 2019. The completed bridge will be 1,420 meters long, with a main span of 507 meters. It's said to be the world's largest flying-swallow-type CFST arch bridge. The bridge spells the end of more than 250,000 people crossing the river by ferries. (Photo: China News Service)

A highway bridge under construction over the Yangtze River in Hejiang County, Southwest China's Sichuan Province, July 3, 2019. The completed bridge will be 1,420 meters long, with a main span of 507 meters. It's said to be the world's largest flying-swallow-type CFST arch bridge. The bridge spells the end of more than 250,000 people crossing the river by ferries. (Photo: China News Service)

A highway bridge under construction over the Yangtze River in Hejiang County, Southwest China's Sichuan Province, July 3, 2019. The completed bridge will be 1,420 meters long, with a main span of 507 meters. It's said to be the world's largest flying-swallow-type CFST arch bridge. The bridge spells the end of more than 250,000 people crossing the river by ferries. (Photo: China News Service)