The National Highways and Infrastructure Development Corporation Ltd (NHIDCL) is constructing the Silkyara-Barkot tunnel through Hyderabad-based Navayuga Engineering Company Ltd. The tunnel is a single-tube tunnel divided into two inter-connected corridors by a partition wall. Each inter-connector corridor can work as an escape passage for the other. The 4.5 kilometre-long tunnel project in Uttarakhand, which is part of the centre's 900 kilometre-Char Dham Yatra all-weather road, aims to improve connectivity to the four pilgrimage sites.
