西藏拉林高等级公路

国道318线西藏拉萨至林芝高等级公路平均海拔4300米以上。中交二公局承建了一期工程（林芝至工布江达段）五标、二期工程（工布江达至米拉山段）一标、二标3个标段，包括60公里路基桥涵及路面工程，合同额约27亿元。

National Highway 318 Lhasa-Nyingchi High-grade Highway in Tibet has an average altitude of more than 4300m. CCCC Second Highway Engineering Co., Ltd. undertook Section V, Stage I (Nyingchi-Gongbujiangda section), Section I &II, Stage II (Hongbujiangda-Mila Mountain section), including 60km subgrade, bridges, culvert sand pavement engineering, with a total contract value of about 2.7 billion yuan.