Photo Essay | On a slippery road 5 Photos . Updated: 04 Sep 2015, 09:38 PM IST Livemint Landslides dot NH 5 in Kinnaur, Himachal Pradesh, making life difficult for residents 1/5Environmentalists and residents say heavy construction and use of the drill and blast method of tunnelling has led to severe erosion and triggered the destabilization of slopes, especially in Kinnaur, Himachal Pradesh. Photographs by Sumit Mahar 2/5A host of small, medium and large hydro projects are in various stages of planning, construction and operation. 3/5The Spiti, a tributary of the Sutlej, near Sumdo village, Himachal Pradesh. 4/5Ramanand Negi says his house in Urni village developed cracks in 2007 due to work on the Karcham Wangtoo Project. 5/5The Boomer is a powerful hydraulic machine that is reportedly capable of drilling hundreds of deep holes in the mountain face in a few hours.