Developed to secure Istanbul's long term water needs, the European Side Drinking Water Tunnel is a strategic infrastructure investment. It transfers 1.2 billion m³ annually from Melen Dam beneath the Bosphorus to the European Side.
Water and Environmental Projects
European Side Drinking Water Tunnel Project
European Side Drinking Water Tunnel Project
An infrastructure tunnel conveying drinking water beneath the Bosphorus to the European Side
European Side Drinking Water Tunnel Project
European Side Drinking Water Tunnel Project
Highlights
Location
Istanbul, European Side via a Bosphorus crossing
Client/Employer Information
T.C. Orman ve Su İşleri Bakanlığı / DSİ / İSKİ
Project Scale
Annual water capacity of 1.2 billion m³
Infrastructure Components
Drinking water tunnel beneath the BosphorusDistribution lines on the European side
Function
Supplying drinking water to Istanbul's European Side districts
Service Area
Eyüp, Bahçelievler, Bağcılar, Bakırköy, Güngören, Esenler and Küçükçekmece
The tunnel provides a lasting supply of drinking water to Eyüp, Bahçelievler, Bağcılar, Bakırköy, Güngören, Esenler and Küçükçekmece.
Special Solutions
Project Stages
Construction Stages
01
Excavation and lining of the Bosphorus crossing tunnel
02
Construction of the European Side distribution tunnel and connections
03
Installation of pumping stations and pressure balancing structures
04
Integration with district networks
Solutions
Round the clock schedules supported tunneling beneath dense urban infrastructure.
TBM technology ensured safe, rapid excavation.
Steel reinforced concrete segment linings resisted high pressure.
Sustainability
Excavation and waste materials were controlled and used in filling and rehabilitation.
Local labor and materials reduced logistical carbon emissions.
Geological and hydrological monitoring protected the Bosphorus ecosystem.
Durable tunnel linings created sustainable infrastructure with low maintenance needs.
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