Opening roads in the mountains and building bridges in the water are the daily routines of Chinese infrastructure workers. They continue to break through and create famous scenes of infrastructure speed. On the seabed of Dalian Bay in Liaoning, a breakthrough is underway.

In 20 months, 18 aircraft carrier-grade immersed tubes have been accurately installed, a new record, refreshed!

The geological conditions of the tunnel are poor and the construction water area is narrow... Numerous technical problems must be overcome!

The construction code of the first cross-sea immersed tube tunnel in the cold area of China is cracked!

Following the Hong Kong-Zhuhai-Macao Bridge, another domestic cross-sea channel super project - the Dalian Bay Submarine Tunnel will open in 2023. China's infrastructure maniac once again broke the geographical environment and climate restrictions.Editor/Ma Xue