Monday, 21 April 2014

Posted by Unknown on 17:04 | No comments

The Japanese government has shown keen interest to construct a 2.35-km tunnel road on the Nagdhunga-Naubise section of Tribhuvan Highway, which will reduce traffic congestion and travel time on Kathmandu-Naubise segment. The Japan International Corporation Agency (JICA) is carrying out a feasibility study on this tunnel project.

The Nagdhunga-Naubise section, which is the entry point to Kathmandu Valley, contains steep gradient and sharp curves. This usually results in traffic congestion, affects movement of large vehicles and raises the chances of road accidents. Construction of a tunnel road in this segment will not only reduce travel time and traffic congestion, but also facilitate trade between Nepal and India, as most goods coming from the southern neighbour enter the Valley via this route.

भिडिओ हेर्न तल क्लिक गर्नु होस् 

“As per our discussion with JICA officials, the Japanese government will complete the feasibility study within a year and if it finds the project viable, it will also construct it on its own,” said Madhu Masashini, joint secretary at the Ministry of Finance (MoF). He also informed the Japanese government was positive about providing grant or loan to build the tunnel project.

The government, for long, has been planning to build a tunnel road on the Nagdhunga-Naubise segment and had also conducted a feasibility study last year, which had concluded that 2.3-km tunnel linking Imakhel of Nagdhunga with Sisnekhola of Naubise was viable. Back then, it was estimated that construction of the tunnel would cost Rs five billion, including cost for building access road to the tunnel. The route from India to the western Kathmandu via the Prithivi Highway is the most reliable corridor for foreign trade in the country.

भिडिओ हेर्न तल क्लिक गर्नु होस् 

Upon completion of the government’s feasibility study, JICA had shown interest to conduct a fresh study on its own. Recently, the government and JICA have also decided to set up a project called ‘Thankot-Naubise Tunnel Construction Project’ prioritising the tunnel plan. The project aims to improve road condition around Thankot pass by building a 2.35-km three-lane tunnel (two lanes inbound to Kathmandu and one lane outbound from Kathmandu) to ensure smooth transportation network between Kathmandu and other cities, according to the MoF.

The preliminary scope of the tunnel project includes construction of the tunnel, 2.25-km approach road, five bridges along the route and establishment of power supply facilities, including backup generator to light the tunnel in case of power failure. The government-JICA team will also prepare detailed design, bidding documents and supervise works related to tunnel construction.

The three-lane tunnel has been proposed as the best option in terms of smooth and safe travel, and reduction of travel time and vehicle operating cost on Nagdhunga-Naubise section. However, construction and maintenance cost of the three-lane tunnel will be 1.2 times more than two-lane tunnel.

As per the basic engineering report, the tunnel road will be safe enough for vehicles to travel at 40 to 60 km per hour and will be able to handle 10,000 to 11,000 units of vehicles per day.


The MoF officials said that the route survey and the feasibility study of JICA will investigate further on the project site and suggest most appropriate outline for the project.

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