The section from Tonghua to Meihekou is a section of the first vertical line from Hegang to Dalian from Ji'an to Shuangliao liaison line in the National Expressway Planning. The starting point of the line is located in Madang Village Tonghua County, which is connected with the highway from Hegang to Dalian. The construction period of the project is from 2012 to 2015, with a total length of 97.829km. The main towns along the route are Sanyuanpu Town, Liuhe County, Meihekou City, and the main rivers along the route are: Huifa River, Santong River and Yitong River. Main highway: the project starts from Madang Interchange and Hedang Expressway, and ends with Jicao Expressway through Bay Dragon Interchange. The main roads along the route are: 1. 303 National Road, 2. 2 State Road; main Railway: the project passes through the railway Tongmei railway and Shenji railway. The main line crossed with Tongmei railway twice, the Shenji railway crossed once, the connecting line crossed with Tongmei railway twice and the separation interchange was set up respectively.