Nagdhunga tunnel
Nagdhunga tunnel () is a highway tunnel connecting Sisnekhola of Dhading district and Nagdhunga in Kathmandu. The tunnel will be a part of Tribhuvan Highway. The contractor of the project is Hazama Ando Corporation. The project is scheduled to be finished by April 2023. The tunnel has a height of 18m and have a lane of 9.5m wide. The length of the tunnel is 2380 m. The cost estimate of the project is about NPR 22 billion. Geology. The tunnel passes through bedrocks of Sopyang formation. There are six shear zones in the alignment.