4LEVENT AYAZAGA

13,3 km long double track “3rd rail” underground metro between 4. Levent – Ayazağa with a design speed of 80 km/hr. Supervision includes 3 cut and cover metro stations, excavation of a single-tube mainline tunnel in total length 9832 meters, a single-tube station platform tunnel in total length 1295 meters, a single-tube station platform tunnel in total length 403 meters, a single-tube switch tunnel in total length 620 meters, a single-tube station connection tunnel in total length 840 meters, a single-tube station stairs tunnel in total length 360 meters and final interior coating concrete as well as electro-mechanical projects of all stations and metro lines. Depot Site 68.000 m^2.Soil Works, Engineering Structures, Material Approvals and Progress Payment Control, Quality Control and Quality Assurance, Provisional and Final Acceptance Services

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