Songdai expressway is the "one vertical" in the frame network of "three vertical, three horizontal and nine channels" in Yunnan Province. It is an important section of Erenhot-Chengdu-Kunming-Hekou Highway, the national trunk line (GZ40), and also an important section of Chongqing-Kunming Expressway (G85).
Master overview
Expressway, Dai Song starts from Songming Interchange and ends at Daibu Town, Huize County, passing through Songming County, Xundian County, Dongchuan District and Huize County. The total length is 1 1 township, and the project budget is 21590,000 yuan. Among them, 56 kilometers from Songming to Gongshan is a four-lane expressway with a subgrade width of 24.5 meters and a design speed of 80 kilometers per hour; The rest of the road is half that of expressway, with a design speed of 60 kilometers per hour. The section to be repaired in Gongshan is a second-class highway with subgrade width of 12m and construction period of 3 years. Compared with the old highway, the newly-built expressway in Dai Song has been shortened by more than 20 kilometers, and the journey time has been shortened from more than 5 hours in the past to 1.5 hours now, especially the journey from Kunming to Huize and Zhaotong to Sichuan has been accelerated, and the journey time has been shortened by more than 3 hours.
Expressway, Dai Song is high in the northwest and low in the southeast, with steep and complex terrain and special natural geographical and geological environment. However, under extremely harsh construction conditions, tens of thousands of highway builders fought for more than 1000 days and nights, creating another expressway in Yunnan Province, and digging the Dayingshan tunnel on the mountain with an altitude of 2,952.50 meters, making it the highest-altitude expressway tunnel in Yunnan highway history.
Dai Song expressway started construction in March 2000, was completed in June 2003 1 1, and was opened to traffic on February 8, 2003.
Expressway, Dai Song, connects Kunming, Yunnan in the south, Sichuan in the north and Guizhou in the east, serving the vast area of northeast Yunnan, which is of great significance to promoting poverty alleviation in northeast Yunnan and strengthening economic exchanges in southwest Yunnan.
detail
Traffic area
service area
Parking areas in Songming County of Kunming, Xundian Hui and Yi Autonomous County and Qujing Huize County of Dongchuan District.
Kunming Xundian Hui and Yi Autonomous County Gongshan Parking Lot Name Qujing Huize County Dashuijing Ancient Buildings Ancient Building Parking Lot Exit and Entrance
The names of the entrances and exits in the area can be cited to the area remarks: G56, G85, Kunming, Songming, Malong, Songming Interchange, Songming County of Kunming City, Qujing Street street direction to be filled, Yangjie G2 13 in Xundian Hui and Yi Autonomous County of Kunming in Songming direction, Yangjie Gold College G2 13, X084, G2/kloc-0.
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