Nagdhunga tunnel
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Nagdhunga tunnel (Nepali: नागढुंगा सुरुङ्ग) is a under-construction highway tunnel connecting Sisnekhola of Dhading district and Nagdhunga in Kathmandu. [1] The tunnel will be a part of Tribhuvan Highway. The tunnel has a height of 8.3m and has a lane of 9.5m wide. The length of the tunnel is 2680 m.
Geology
[edit | edit source]The tunnel passes through bedrocks of Sopyang formation. There are six shear zones in the alignment. [2]
Nagdhunga Tunnel Construction Project
[edit | edit source]The contractor of the project is Hazama Ando Corporation. The project was scheduled to be finished by April 2023.[3] The cost estimate of the project is about NPR 22 billion.[4]
Features
[edit | edit source]- Tunnel, 2.9 km, 2 lanes, total tunnel (carriageways) width 9.5 m, grade 3.5%
- Approach road, 2.60 km, 2 lanes, carriageway width 7m, 2 m shoulder
- Bridge, 3
- Flyover, 1 at Balambu interchange
- Toll facility, west side 3 booths, 3 lanes each and east side 2 booths, 2 lanes each
- Tunnel management office, west side area 390 m2 and east side 300 m2
- Disposal area development at the east portal;
- Transmission line 4.14 km.
See also
[edit | edit source]References
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