Navab Tunnel

Brief

Main branch of Navab surface water collecting tunnel (Watershed of West of Tehran) in 10,800 m length beginning from Golha Sq. (Jalal-e-Al-e-Ahmad located in North of Tehran) and passing through Dr Fatemi, Kargar, Navab, Haghshenas streets connecting to Nahr-e-Firoozabady at Haghshenas Sq.
It conveys the surface water of west of Tehran to Nahr-e-Firoozabady. The width of this tunnel is 2.8 m and it has reinforced concrete lining.

Details

Total work based on primary contract

125,000

Earthwork

50,000

Formwork

870,000 Kg

Steelwork

135,500

Cast in place concrete

Facts

Type of structure Reinforced Concrete Tunnel
Length 10,800 m
DimensionsW: 2,800 mm   H: 2,800 mm
Type of structure Reinforced Concrete Tunnel
Number85
Dimensions W: 1,600mm   H: 20 m
Location West of Tehran
Start date1983
Duration50 Months
Client Tehran Municipality
Consultant Engineering and Improvement Organization of Tehran city.