本合同段K449+000~K485+071.269,长约36.071公里,公路等级为双向四车道高速公路,设计时速为100km/h,沥青混凝土路面,有互通立交2处。主要工程量有挖除旧路面72212.4m3,拆除结构物58113.7m3,挖除非适用材料11025m3,路基填方4433m3,软土地基处理2767m2,边沟44973.9 m3,排水沟6700.3m3,截水沟1718.5m3,急流槽535m3,路基盲沟25347.8m,植草护坡4758.8m,圬工56880.3m3,钢筋314.7吨,水泥稳定碎石垫层3878m3,水泥稳定碎石基层227162m2,级配碎石底基层40109m2,级配碎石基层16097m2,改性乳化沥青黏层1174615m2,水泥浆粘结层232370m2,40mm AC-13细粒式沥青混凝土上面层762179m2,60mm AC-20中粒式沥青混凝土中面层807880m2,80mm AC-25粗粒式沥青混凝土下面层408258m2,12cm泡沫沥青冷再生209215m2,改性乳化沥青封层425166m2,预拌沥青碎石封层559422m2,现浇混凝土加固土路肩25933m,预制混凝土块路缘石69894m,桥梁顶升:24跨,开挖并铺设表土23078.9m3,撒播草种101225m2,铺植草皮25968m2,人工种植灌木14767株。