The first phase to be constructed consisted of the 68.14 kilometer central section. It was opened to traffic on 25 October 2008 with the new expressway designated as the S2 Shenyang-Kangping Expressway.[2]
The second phase consisted of the 24.1 kilometer northern section which opened to traffic on 22 September 2009.[3][4]
The third and final phase to be completed was the 24.64 kilometer southern section.[5] Construction began on 26 April 2019 and was opened to traffic on 28 October 2021.[6]