The section in Inner Mongolia has a total length of 96.15 kilometers and was opened to traffic in 2023.[2][3]
Hebei
Ulanbutong (Inner Mongolia-Hebei border) to Weichang
With a total length of 106.36 kilometers, construction started on 5 December 2022, and is expected to be opened to traffic in 2025.[4][5]
Weichang to Chengde
The section from Weichang to Chengde, also known as the S50 Chengwei Expressway, has a total length of 70.25 kilometers.[6] Construction started on 21 August 2010 and opened to traffic on 9 December 2013.[7][8]