33,5 km double line 250 km/hr high-speed railway between Yerköy - Sivas section of Ankara - Sivas Railway. Supervision includes
143 km double line 250 km/hr high-speed railway between Yerköy – Sivas section of Ankara – Sivas Railway. Supervision includes 9 tunnels with total length 14,5 km, 9 viaducts with total length 4,6 km, 30 overpasses, 52 underpasses, 209 culverts. Soil Improvements, Engineering Structures, Material Approvals and Progress Payment Control, Quality Control and Quality Assurance, Provisional and Final Acceptance Services.