肯尼亞內(nèi)羅畢至馬拉巴鐵路是東非鐵路網(wǎng)的重要路段，一期工程正線長約120公里。中交二公局承建內(nèi)馬鐵路一期1標(biāo)、7標(biāo)兩個標(biāo)段，包括路基、橋梁、隧道和鋪軌、制架梁、軌枕預(yù)制等，其中恩貢山隧道是東非最長的隧道。
　　Nairobi-Malaba Railway in Kenya is an important part of the East African railway network, with a main length of about 120km. CCCC Second Highway Engineering Co., Ltd. has contracted the construction of section 1 and section 7 of phase I of Nairobi-Malaba Railway , including subgrade, bridge, tunnel and track laying, frame girder and sleeper prefabrication, among which Ngong Mountain Tunnel is the longest tunnel in East Africa.