中交二公局承建陕西宝鸡至甘肃天水高速公路9个标段,其中隧道12座,单洞总长11298.51米,主要有那下湾隧道、放牛坡隧道等千米以上隧道。
CCCC Second
Highway Engineering Co., Ltd. has contracted to build nine sections of the
Shaanxi Baoji-Gansu Tianshui Expressway, 12 of which are tunnels with a total
length of single hole of 11,298.51m. The main tunnels are Naxiawan Tunnel and
Fangniupo Tunnel, which are more than 1000m long.
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