The Mosul Dam was built in the early 1980s. With a length of 3.65km and the crest elevation at 341m, the Mosul dam is the largest dam in Iraq. It is located in Northwestern Iraq on the Tigris River, upstream of the city of Mosul. The purpose of the dam is to generate hydroelectricity and provide water for downstream irrigation. At full capacity, the structure holds around 12.5 million cubic metres of water and provides electricity to the 1.7 million residents of Mosul.