Aerial photo taken on June 30, 2022 shows a view of a mega bridge above the Jinyang River, which connects the old and new districts of Jinyang County, in southwest China's Sichuan Province. Photo:Xinhua
Aerial photo taken on Dec. 30, 2018 shows a section of the Ya'an-Kangding expressway in southwest China's Sichuan Province. Photo:Xinhua
Aerial photo taken on Oct. 21, 2021 shows the Luding Dadu River Bridge on the Ya'an-Kangding expressway in southwest China's Sichuan Province. Photo:Xinhua
Aerial photo taken on Oct. 21, 2021 shows an entrance of the 13.5-km-long tunnel at Erlang Mountain, a super project on the Ya'an-Kangding expressway, in southwest China's Sichuan Province. Photo:Xinhua