The starting point is located in the highway inspection passage of Erenhot City (0 km away from National Highway 208), passing through Saiwusu, Qihari Getu and Guoerban Aobao, ending at Saihantala North Toll Station and connecting with Saihantala to Baiyinchagan section of Erguang Expressway.

Erguang Expressway is one of the north-south longitudinal lines of the National Expressway Network Planning (20 13-2030), which starts from Erenhot, Inner Mongolia Autonomous Region on the border between China and Mongolia in the north and ends in Guangzhou, Guangdong Province in the south.

Along the way, it passes through Erenhot, Sunite Right Banner, Wulanchabu, Datong, Shuozhou, Xinzhou, Taiyuan, Changzhi, Jincheng, Jiyuan, Luoyang, Pingdingshan, Nanyang, Xiangyang, Jingmen, Jingzhou, Changde, Yiyang, Loudi, Shaoyang, Yongzhou, Qingyuan, Zhaoqing and Foshan, with a total length of ***2685.

Construction time of Er-Guang Expressway:

20 16 12 3 1, the second-Guangzhou expressway was opened to traffic; 202 1 12 The Lianzhou connection line of Erguang Expressway was opened to traffic; On August 3rd, 2022, KLOC-0/day, the reconstruction and expansion project of Luoyang section of Erguang Expressway was opened to traffic. On September 14, 2022, the B, E and M ramps of Zhujiacang Interchange Reconstruction Project of Erguang Expressway were opened to traffic.

June 65438+February 65438+June 2022, the reconstruction and expansion project of the main line from Erlianhaote to Saihantala of Er (Erenhot) Guang (Guangzhou) Expressway, which was jointly built by Inner Mongolia Luqiao Group and China Communications First Public Security Bureau, passed the completion acceptance and was officially opened to traffic, marking the completion of a fully enclosed expressway for the whole line of Er-Guang Expressway.