Water supply and sewerage
Greater İstanbul Water Supply Stage II: Yeşilçay System

- Location
- İstanbul, Türkiye
- Client
- DSİ
- Period
- 1995–2002
- Service
- Consultancy services
- Key data
- 145 million m³/year
Scope
- Two weirs on the Çanak and Göksu streams near Ağva
- Pumping station with 10 units; 8 units of 4,500 kW, 12 m³/s in total
- Steel rising main, 2,700 mm diameter, 2.75 km long
- About 44 km of raw water transmission main, 3,000 mm diameter
- Water treatment plant, 500,000 m³/day
- Final design, tender documents, contractor prequalification, bid evaluation and construction supervision
- Joint venture: Gibb, SETAN, Suiş, Sial. Financed by the Kuwait Fund.
