The Sanli Expressway starts from Sansui county; connects to the Hu-Kun Expressway; and passes through Sansui, Tianzhu, Jinping and Liping county of the Qiandongnan Miao and Dong autonomous prefecture. The newly-built Sanli Expressway, with a total length of 138 kilometers, is the first expressway ever in the history of Tianzhu and Jinping county.