Japan Adds Fresh Loan Support to Push Nepal’s Nagdhunga Tunnel Over the Finish Line

Japan has agreed to provide an additional 5.7 billion Japanese yen, or about 5.5 billion Nepali rupees, to help complete Nepal’s Nagdhunga Tunnel Project. The supplementary financing is aimed at covering the funding gap needed to finish one of the country’s most important transport infrastructure projects.

The agreement was signed in Kathmandu by Finance Secretary Ghanshyam Upadhyaya and Japanese Ambassador Kikuta Yutaka, underscoring the long-running development partnership between the two countries. According to the ministry, the extra loan is intended to address budget shortfalls and keep the project moving toward completion.

The Nagdhunga Tunnel is designed to ease traffic congestion at the western gateway to Kathmandu, a corridor that regularly experiences bottlenecks and delays. Once finished, the tunnel is expected to improve connectivity between the capital and key parts of Nepal, while also making travel safer and more efficient.

Why the tunnel matters

Nagdhunga is more than a road project. It is a strategic transport route linking Kathmandu Valley with the rest of the country, and any delay there can ripple across trade, commuting, and freight movement. A completed tunnel should help reduce pressure on the existing road network and cut travel time for vehicles entering and leaving the capital.

This latest loan also reflects how large infrastructure projects can require phased financing over time. When project costs rise or implementation timelines stretch, additional funding can become necessary to avoid stalling construction.

Part of a broader Japan-Nepal infrastructure partnership

Japan has long been one of Nepal’s major development partners, especially in infrastructure. Its support has included concessional loans, grants, and technical cooperation across roads, hydropower, health, and other sectors.

The new financing for Nagdhunga adds to that wider pattern of cooperation, with Japan continuing to back projects that aim to improve mobility, strengthen economic activity, and support urban growth in Nepal.

What happens next

With the additional loan now agreed, the focus shifts to final execution and timely completion. For Kathmandu residents and daily commuters, the tunnel’s completion could bring one of the most visible transport upgrades in recent years, especially on a route that has long been associated with congestion and delays.

If delivered on schedule, the project could become a major relief point for one of Nepal’s busiest traffic corridors and a practical example of how foreign development financing can shape everyday urban life.