The main structure of the Suzhou-Wuxi-Changzhou highway started construction in April. The highway, which goes under Taihu Lake, has undergone an intense period of construction over the last 22 months.

Undertaken by China Communications Construction Company Ltd. (CCCC), the work on the main structure is being carried out by thousands of workers under the lead of CCCC Third Harbor Engineering Co., Ltd.

The construction of the highway started in June 2017 and is expected to cost 15.91 billion yuan ($2.4 billion). The tunnel is scheduled to open in 2021.

The 43.6-meter wide highway tunnel on the Changzhou-Wuxi Highway will run for 10.8 kilometers under Taihu Lake, making it the longest and widest underwater highway tunnel in China.