China Bidding Network shows that the bidding for the expressway from Kyushu North to Lanzhou South has not been completed. As of March 30, 2023, Gansu Provincial Public Resources Trading Center issued a tender notice for the preliminary survey and design of the section of Wuhai-Maqin Expressway from Kyushu North to Lanzhou South, which is known as the second phase project of Lanzhou Middle Passage.
The second phase of Lanzhou Middle Passage starts from Jiuzhoutai in the north of Lanzhou City and connects with the middle passage project from Lanzhou New Area to Lanzhou Section of G 18 16 Wuma Expressway. After crossing the main urban area of Lanzhou, it is connected to G75 Blue Ocean Expressway, which is about 16.4 km long. The main line is planned to adopt the technical standard of two-way six-lane expressway, with a design speed of 80km/h and a subgrade width of 33 m.