• Construction and completion of RS (Rectifier & South ventilation)

• Excavation and execution of lining and completion of 60 meters long access and ventilation tunnel.

• Execution of the North East access

• Execution of South East exit

• Completion of elaborate work (Joinery) northern ventilation

 • Concrete: 12000 cubic meters

• Weight of steel Bars: 2500 tons

• Formwork: 7600 m2

• Excavation: 8500 cubic meters

Consultants: Asar Consulting engineers company,Javab Consulting engineers company,Pajoohesh Consulting engineers company

Client: Tehran Urban & Suburban Railway Co.

Start Date: 2010

End Date: 2012