Tigra Dam (also spelled "Tighara Dam") creates a freshwater reservoir on the Sank River, about 23 km from Gwalior, Madhya Pradesh.  It plays a crucial role in supplying water to the city. It is beautiful and is an important tourism spot of Gwalior. The dam is 24 metres high at its crest, and 1341 m long. The reservoir has a capacity of 4.8 million cubic metres and the spillway structure can pass up to 1274 cubic metres per second. A dam constructed on this site in 1915 failed on the afternoon of 19 August 1917, due to infiltration into its sandstone foundations. About 1000 people were killed downstream. However this also led to the relocation of the people that was residing in the surrounding area of the dam.