Delhi–Dehradun Expressway

The Delhi–Saharanpur–Dehradun Expressway, also known as Delhi-Dehradun Economic Corridor, is a 210 kilometres (130 mi) long, 12/6 lane access-controlled expressway, connecting Delhi, the national capital of India, with Dehradun, the Winter capital of the Indian state of Uttarakhand. The highway includes multiple independent stretches of different highways including National Highway 709B (NH-709B), National Highway 307 (NH-307) and a green field alignment between Eastern Peripheral Expressway and Saharanpur bypass denoted as National Highway 344G (NH-344G) The highway passes through the states of Delhi, Uttar Pradesh and Uttarakhand, and through the cities of Baghpat, Baraut, Shamli and Saharanpur.

It has two spurs, or link roads, to ensure connectivity with cities lying nearby to its route: one 50.7-kilometre-long (31.5 mi), six-lane Saharanpur–Roorkee–Haridwar Expressway, and another 121-kilometre-long (75 mi), six-lane Ambala-Shamli Expressway. It reduces both travel time and distance, from around 5–6 hours to only 2.5 hours, and from around 280 kilometres (170 mi) to 210 kilometres (130 mi). It also connects to Char Dham Highway at Haridwar in Uttarakhand.