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衡枣高速公路是国家重点规划的“五纵七横”国道主干线网中衡昆国道主干线的起始段,起于湘耒高速公路洪市互通,止于与广西接壤的枣木铺,主线长186.065公里,按全封闭全立交四车道高速公路标准建设,于2000年12月开工建设,预计2003年底建成通车。衡枣高速公路所经地区主要是山岭重丘区,施工难度大,其中
Hengzao Expressway is a key section of national key planning “five vertical and seven horizontal” national trunk road network in the beginning of the trunk section of the main road Kunming, starting from the Hunan Xiang Autonomous Region Highway Hong exchange each other, ending in border with Guangxi jujube shop, The main line length 186.065 kilometers, according to the fully enclosed four-lane freeway standard interchange construction, started construction in December 2000, is expected to be completed by the end of 2003 opened to traffic. Hengzao freeway by the region mainly mountain heavy hill area, construction of large, of which