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Niayesh Road Tunnel | Pazhoohesh Omran Rahvar
SELECTED PROJECTS
  • Niayesh Road Tunnel
  • Niayesh Road Tunnel
  • Niayesh Road Tunnel
  • Niayesh Road Tunnel
  • Niayesh Road Tunnel
  • Niayesh Road Tunnel

Niayesh Road Tunnel

This project is located in northwest of Tehran which connects Niayesh highway to Sadr highway. 6.6 km long Niayesh tunnel is the longest urban tunnel in the Middle East which is excavated by NATM method. Typical width of the tunnel is 20m which increases to 30 m in some sections.

 

Niayesh Project Total Length: 6.675m (10.300m with access roads)
North Tunnel South Tunnel
Length (m) 3.780 2.895
Average Daily Traffic (ADT) 42.000 52.500
Design Speed 60 km/h 60 km/h
Overburden Max: 40 m Max: 38 m
Min: 4.5 m Min: 6 m
Shotcrete 475.000 m3
Excavation 1.380.000 m3
Concrete for Final Lining 265.000 m3