Doğuş İnşaat

The works performed can be outlined as 19 dams and HEPPs, 1150 km of roads including 415 km of motorways, 1.500.000 m2 of buildings, infrastructure works, bridges, more than 47.000 m of tunnels and diversion tunnels, ports, marinas, irrigation projects, sewerage systems, office buildings, shopping and residential centers and industrial buildings.

Doğuş presently executes projects totalling USD 4.5 billion and the share of Doğuş in these projects amounts to USD 2.9 billion. Doğuş takes part in execution of various prestigious mass rail transportation projects either within the joint ventures or within consortiums established with the participation of worldwide active construction companies. Yusufeli, Boyabat and Aslancık dams and hydroelectric power plant projects are noteworthy projects to be started by Doğuş Construction. Argana Amskroud Motorway project in Morocco, Kiev Dnyepr highway and railway bridge construction and Zaporizhzhia biological waste water treatment plant constructions in Ukraine are some of the outstanding examples of the overseas works under execution. Meanwhile, Doğuş's bid offered within a joint venture for the Boryspil State International Airport Development project to be realized with the loan secured from the Japan Bank for International Cooperation and covering civil works, terminal equipment works and utility works is ranked first as a result of tender evaluations.

A glance at the ongoing projects

The "Araklı-İyidere Coastal Road" construction works executed by the Doğuş-Polat Joint Venture, include 27 km 2x2 lane road and 600 m long tunnel of 11,80 m cross-section, 17 hydraulic bridges, 9 junction bridges, 9 underpasses and overpasses.

Sinop-Boyabat is an other road construction work including 2 km long tunnel with the diameter of 11,80 m; and the road is 52,4 km 1x2 lane road with 3 bridges and 215 box and pipe culverts in total.

The "Otogar-Kirazlı-Başakşehir Metro" is a rail transportation system project that covers construction and electromechanical works and the delivery of railway vehicles. Single-track length of the twin-tunnel system to have 16 stations in total is 47.4 km. It starts from the city bus terminal (Otogar) and extends through the alignment of Bağcılar, Kirazlı to reach both the Olympic Village and Başakşehir houses and constitutes a considerable part of the railway systems chain in İstanbul. 4 Tunnel Boring Machines (TBM) are used for the twin tunnels with circular cross-section of 5,70 m. The project is under construction by the Gülermak-Doğuş Joint Venture.

Construction works of another mass transportation system project titled "Kadıköy-Kartal Metro" is under execution by the Anadoluray Joint Venture consisting of Yapı Merkezi, Doğuş, Yüksel, Yenigün and Belen Ltd. companies. Twin tunnel system to extend from Kozyatağı to Kadıköy is 17 km long and the New Austrian Tunneling Method is applied for station areas, while 2 TBMs are used for main tunnel sections.

The Marmaray Contract CR1, (Marmaray Phase 2), which provides an upgrading of the commuter rail system in Istanbul, connecting Halkalı on the European side with Gebze on the Asian side with an uninterrupted, modern, high-capacity commuter rail system is under execution by the consortium consisting of the Doğuş, Alstom and Marubeni companies. 63.7 km of existing double-track will be upgraded to triple-track system and 36 existing stations will be renovated and the entire electrical and mechanical systems will be replaced.

Yusufeli Dam and Hydraulic Power Plant Project which will be the 2nd highest rockfill dam in the world with the height of 270 m is a project undertaken by the Doğuş-Alstom-Coyne & Bellier and Dolsar consortium under an intergovernmental bilateral protocol. Construction work in the project will be carried out by Doğuş Construction, while the electromechanical and engineering services will be rendered by Alstom, Coyne & Bellier and Dolsar. Yusufeli project is expected to start in the second half of 2008.

Furthermore, two mega hydropower investment projects, where the Doğuş Group is involved as one of the main investors are also starting; the Boyabat Dam and HEPP and the Aslancık Dam and HEPP with the installed capacities of 513 MW and 120 MW respectively.

Argana-Amskroud Motorway Project where the Client is the National Motorways Administration of Morocco, includes 46 km 2x2-lane motorway, 3 viaducts, 17 underpasses and overpasses and various motorway structures.

In Ukraine, 450 m long Kiev-Dnepr Railway and Highway Bridge with the elevation of 20.6 m and Zaporizhzhia Biological Waste Water Treatment Plant construction works continue, while Doğuş also signed 60,000 m2 "A Class" office building project to be started in mid 2008.

Doğuş targets to expand its working arena in the international market and will be exploring new businesses in North Africa, Eastern Europe, Russia, Ukraine and the CIS and the Gulf Countries.

Environment-friendly project approach

The preservation of environment is of much importance in the projects executed by Doğuş Construction. A particular care is taken to protect natural resources and to minimize the negative environmental impacts and to adopt necessary mitigation measures. To this end, the applicable environmental laws and regulations are fully complied with.

Furthermore, local and international occupational health and safety requirements are meticulously applied in every phase of the construction works. Compliance with project specific and general environmental and labour safety requirements of each project is a key to the high service quality offered by Doğuş Construction to its Clients. Accordingly, the employees are continuously provided with training courses to keep up with the changing requirements in the areas of Quality, Environment, Occupational Health and Safety Management Systems.

Doğuş Construction is certified by the Det Norske Veritas (DNV) whose objectives are "Safeguarding life, property, and the environment" and is a leading provider of services for managing risk. DNV issued ISO 9001:2000 Quality, OHSAS 18001:1999 Occupational Health & Safety, and ISO 14001:2004 Environmental Management certificates for Doğuş Construction.