İstanbul Metro 4. Levent - Ayazağa Section

İstanbul/ Turkey

The project consists of the engineering, procurement and construction of 4,725 m long metro system extension between 4. Levent and Ayazagˆa with 3 stations including the depot area.

The main works items of the project are as follows:

- Construction of Sanayi and Ayazagˆa stations,

- Conventional deep bored tunnel construction (NATM) 14,344 m, - Cut and cover tunnel construction 100 m,

- Viaduct construction 55 m,

- 68,000 m2 depot area.