In line with the vision to streamline Northeast India’s connectivity, an inter-ministerial committee chaired by the expenditure secretary has granted in-principle approval for India’s first 15.8km twin-tube underwater tunnel beneath the Brahmaputra River in Assam and this tunnel will facilitate the movement of both road and rail vehicles. This pioneering project will enhance strategic access and regional integration by linking Gohpur on one bank with Numaligarh on the other.
The underwater infrastructure features two parallel tunnels, each for unidirectional traffic. One tunnel will be dedicated to road vehicles with two lanes, and the other will be for housing a single railway track.
Both the tunnels will be constructed approximately 32 meters beneath the riverbed’s deepest point, positioning this as one of the Northeast’s most intricate infrastructure projects.
The tunnel integrates into a broader 33.7-km package encompassing approach roads and railway lines, with an estimated total cost of Rs 18,600 crore. Funding will be shared across the ministries of road transport and highways, railways, and defence.
Discover how AI is bringing the next phase of sustainable urban rail mobility for Viksit Bharat at InnoMetro 2026, India’s prime exhibition and conference for metro & railways which is going to be held on 21-22 May 2026 at Bharat Mandapam, New Delhi.
Register now: https://innometro.com/visitor-registration/
Mangalore add SWR and Mangalore. Udupi. karkala. karwar built suburban railway route very important project karnataka very poor backward in railway infrastructure