Delhi-Dehradun Expressway inauguration: Prime Minister Narendra Modi is all set to inaugurate the Delhi-Dehradun Expressway, which is also being called the Delhi-Dehradun Expressway Economic Corridor. The new expressway built under National Highways Authority of India is an access-controlled roadway corridor that will substantially reduce the travel time between Delhi and Dehradun. The full expressway will be thrown open on April 14, 2026. From a unique wildlife corridor to route map, here are top facts and photos of the Delhi-Dehradun Expressway: