The north section from The EXPO Garden Center to Dalongshan started operation on 28 December 2017, and it extended to Dashiba on 24 December 2018. The south section from Shiqiaopu to Tiaodeng started operation on 20 January 2021. Due to difficults on bridge building, the central section from Dashiba to Shiqiaopu is opened several years later, on 30 November 2023.[3]
Northern extension
The northern extension of this line began construction on 25 January 2019. The extension is 8.95 km (5.56 mi) in length with 7 new stations.[4] The extension opened on 27 February 2023.[5]
Jiangtiao line (Chinese: 江跳线)[9] had been formerly known as the extension of Line 5. The section from Tiaodeng to Shengquansi (28.22 km (17.54 mi) in length[9]) opened in August 2022.[10] The section from Shengquansi to Dingshan (4.524 km (2.811 mi) in length[11]) is currently under construction.