The Mejerda River (also known as the Wadi Majardah, Wadi Mejerha, Oued Majardah, and Bagradas) is a river in Algeria and Tunisia. With a length of 450 km it is the longest river of Tunisia. It originates in northeastern Algeria and then flows eastwards to Tunisia, then entering the Gulf of Utica of the Mediterranean Sea. Medjerda is Tunisia's crucial waterway providing water to the country supply facilities, it is also vital to the people living near the river. Water from Mejerda is used to irrigation and is pivotal to the region's agriculture.
It is a river in North Africa that flows from northeast Algeria in the Atlas Mountains 460 kilometres (290 mi), through Tunisia before emptying in the Gulf of Tunis and Lake of Tunis. It is the most important and longest river in Tunisia and is dammed in several locations, being a major supplier of water to the country's wheat crops. A very strategic river in North Africa, it was fought over and settled many times in history by the Berbers, Phoenicians, Punics, Romans, Vandals, Byzantines, Arabs, and the Ottomans. Several major cities, such as Utica, Carthage, and eventually Tunis were founded on or in close proximity to it.