Subways, Highways and Railways

Subways, Highways and Railways


  • İstanbul Metro Taksim – Şişli Subway
    • Istanbul Metro, Taksim – Şişli subway, contracted by the Joint Venture of Garanti / Enka / Doğuş to the Municipality of Greater City of Istanbul encompasses the construction of 2X3.5 km metro lines located on Taksim – Şişli subway route with the heaviest traffic. Along this subway line, there are three stations (Taksim, Osmanbey, Şişli), each with a total length of 180 meters. The project is designed to accommodate heavy rail transport system, travelling along the double underground tunnels and accompanying facilities. Total length of tunnels is 10 253 m. Minimum and maximum diameters of tunnels are 4.20 m and 13.40 m respectively. Major diameter along the route is 6.20 m.


  • İstanbul Metro Project, 4. Levent – Ayazağa Section, Depot Area and Connection Lines
    • Istanbul Metro Project, 4. Levent – Ayazağa Section, depot area and connection tunnel construction works, which has been contracted to the Joint Venture of Garanti Koza / Alsim Alarko by the Municipality of Greater City of Istanbul, has been finished in 4,5 years. The project comprises tunnels with a length of 4.725 m between Sanayi and Atatürk Oto Sanayi Stations, three stations namely Sanayi, Ayazağa and Atatürk Oto Sanayi Stations, and a Depot Area in Seyrantepe with a total area of 65.000 m2. Also 1.000 m connection tunnels have been constructed. Excavation, retaining and concrete works of 14.344 m one-way route tunnels and three stations have been completed.


  • Construction of Bridges – Turkmenistan
    • Designing and construction of 28 highway bridges Category 1 on the routes of Mary-Bayramali-Uchacı.


  • Highway Constructions (various contracts)
    • For various public authorities, construction of app. Exceeding 1.080 km of highway, tunnels (16.8 km of 4.5-8 m diameter) and the bridges; including the Baghdat Avenue in Istanbul’s Anatolian side, accomplished.
      ANKARA -YERKÖY HIGHWAY 176 km 30.12.1952
      ANKARA -KOÇHİSAR HIGHWAY 140 km 20.12.1951
      ESKİŞEHİR-KÜTAHYA HIGHWAY 81 km 30.12.1952
      PINARBAŞI-GÜRÜN HIGHWAY 101 km  31.05.1954
      GÖNEN-BİGA HIGHWAY 55 km  15.10.1963
      GAZİANTEP-FEVZİPAŞA HIGHWAY 79 km 01.01.1956
      GAZİANTEP-KÖMÜRLER HIGHWAY 67 km 22.10.1956
      İSTANBUL CITY ROAD (BAĞDAD STREET) 10 km 20.04.1962
      VAKFIKEBİR-GÖRELE HIGHWAY 25 km 06.04.1967
      TRABZON CITY ROADS 12 km 28.02.1967
      GÖRELE-TİREBOLU HIGHWAY 18 km 30.12.1967
      OF-DEREPAZARI HIGHWAY 16 km 17.06.1970
      ETİLER FLYOVER   26.12.1984
      KOÇ UNIVERSITY (Link Roads) 35 km August 2001
      KOÇ UNIVERSITY (Access Bridge) 2x35mx21m August 2001
      ZEKERİYAKÖY 37 km 1998
      MEER PROJECTS  Various 31.07.2001
      FORD OTOSAN 145 000 m2 31.12.2000
  • Muş-Tatvan Railway


  • Elazığ-Van Railway
    • Commissioned by Ministry of Public Works, turnkey construction of 96 km railroad.


  • İskenderun Iron and Steel Factories Railway
    • Commissioned by the General Directorate of Turkish Iron and Steel Works at İsdemir, for in site rail connections.


  • Eskişehir LRT, Power Supply, Scada and OHL System
    • This project includes installation and commissioning of the 36 KV AC / 750 V DC Power Supply System and SCADA and installation and commissioning 15 km over head line (Catenary system) system for Eskişehir Municapilty and as subcontractor to Bombardier Yapı Merkezi Consortium.
      Installation and implementation for power supply system, SCADA and overhead line system.
      Training, documentation, operation and maintenance works for the project.


Project Description

Location: Turkey, Turkmenistan