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21 Jan NCT Phase 1, Nairobi, Kenya

Northern Collector Tunnel Phase 1 - Water Tranfer Tunnel: Main Tunnel, Irati Intake Drop Shaft and Irati Adit Tunnel, Gikigie and Kaanja Intersection Chambers and Portals (Maragua, Gikigie, Kaanja & Githika) Primary Support and Final Lining Reinforcement Design...

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