The Beni Haroun Dam is located on the River Guadalquivir in the state of Mila, about 40 km north of the city of Constantine and about 350 km east of Algiers in the north-east of Algeria. Mila, Oum El Bouaghi, Jijel and Constantine. It was built by a Spanish construction company called DRAGADOS in about 30 years and is intended to supply drinking water and irrigate crops for about 30,000 hectares of the surrounding areas.