Construction mileage: K371+500 ~ K378+700
Dali ~ Baoshan Expressway is a section of Hangzhou ~ Ruili Expressway. The line crosses Hengduan Mountain Range, mostly distributed in “V”-shaped gorges with steep landforms and complicated geology, mostly unfavorable geological zone of “West Yunnan red bed”. With numerous ancient landslide, the geological treatment of many sections is for the first time in China. With the total length of 166km, it was commenced on December 18, 1998 for the first phase and in May 1999 for the second phase. The entire line was completed and opens to traffic for testing on September 29, 2002.