The 125-kilometre Rishikesh-Karnprayag new railway line has achieved a significant construction milestone with Rail Vikas Nigam Limited (RVNL) completing the final breakthrough of Escape Tunnel 1. According to reports from The Times of India, the Rishikesh Project Implementation Unit achieved this breakthrough on Friday after completing the full 10.847-kilometre length of the tunnel, which is the second-longest on the project. This latest achievement brings the total number of tunnel breakthroughs in the project to 41, with the remaining five breakthroughs expected to be completed over the next year.
The completion is particularly significant given the difficult geological conditions along the Himalayan alignment, as reported by The Times of India. The route passes through rock formations that are highly tectonized, multi-folded and extensively faulted, with widespread shearing and areas of intense rock crushing. Officials noted that these challenging geological conditions led to the development of thick mylonite zones, which are largely associated with the tunnel's proximity to the Main Boundary Thrust (MBT). The project comprises 16 main-line tunnels covering 104 km and 12 escape tunnels extending about 98 km, with a large part of the alignment running through tunnels.
According to the July 2026 update reported by The Times of India, 101 km of main-line tunnelling and more than 95 km of nine escape tunnels have been completed. To accelerate construction, eight adits were identified at different tunnel locations, providing additional faces for tunnel excavation. All eight adits, covering a combined length of 5 km, have now been completed. The rail line also requires the construction of 19 important/major bridges, with eight of these bridges completed while work on the remaining bridges has commenced.
As reported by The Times of India, the Rishikesh-Karnprayag new rail line has been sanctioned to provide rail connectivity for the Chardham pilgrimage circuit, running through Dehradun, Tehri Garhwal, Pauri Garhwal, Rudraprayag and Chamoli districts of Uttarakhand. The project is intended to connect religious and tourist destinations of Devprayag and Karnaprayag with Rishikesh and the National Capital through the railway network. Railway Minister Ashwini Vaishnaw has indicated that surveys have been completed for extending rail connectivity to Gangotri, Yamunotri, Kedarnath and Badrinath, though the proposed alignment is located close to the main Central thrust of the Himalayas, an area that is highly seismically active.
