Duration : [1996~2008]
Owner/Contractor : SETAN + NIPPON KOIE + GIBB + MOTT McDONALD + SUYAPI + TEMELSU + DAPTA + SİAL Joint Venture + DSİ
For this project which is financed by JBIC, the Consultants were responsible from the final design, preparation of tender documents, prequalification of the tenderers, tender evaluation and detail design and site supervision. The Works were being realized together with one Japanese, two British, and four Turkish Consulting firms. System will deliver 900 million m³/year water to İstanbul and will consists of following elements
Melen Intake Weir
Melen Pumping Station, 6 Units (One Stand-by) each 4500 kW and 1.7 m³/s Capacity with a Pumping Head of 196
Melen – Cumhuriyet Water Treatment Works Transmission Main, 8.50 m³/s Capacity, 2 500 mm Dia, 138 km Long Steel Pipeline
Şile – Alaçalı Tunnel, 4 500 mm Dia, 3 754 m Long
Şile Flow Control Centre and 30 000 m³ Capacity Şile Balancing Tank
Alacalı – Ömerli Tunnel, 4500 mm Dia, 4770 m Long
Alaçalı – Ömerli Tunnel, 4500 mm dia, 4770 m Long
Hamidiye Tunnel, 4500 mm Dia, 3260 m Long
Yeşilvadi Conduit, 4500 mm Dia, 5436 m Long
Cumhuriyet Water Treatment Works, 720000 m³/day Capacity
Cumhuriyet Pumping Station, 6 Units (One Stand-by) each 1450 kW and 1,66 m³/s Capacity with a Pumping Head of 100 m
Cumhuriyet Pumping Station- Cumhuriyet Balancing Tank Rising Main, 2500 mm Dia, 3800 m Long
Cumhuriyet Balancing Tank – Osmankuyu/Kağıthane Transmission Main, 2500 mm Dia, 12170 m Long
Bekleme Tunnel, 4000 mm Dia, 1383 m Long
Beykoz Tunnel, 4000 mm Dia, 2755 m Long
Ortaçeşme Tunnel, 4000 mm Dia, 983 m Long
Ortaçeşme – Boğaziçi Tunnel Conduit Connection, 4000 mm Dia, 137 m Long
Boğaz Tunnel, 4000 mm Dia, 5500 m Long
Ayazağa Tunnel, 4000 mm Dia, 2577 m Long
Kağıthane Control Station and Reservoir
Power Transmission Lines