Haffar

During the early Islamic centuries, the

Daylam Daylam, also known in the plural form Daylaman (and variants such as Dailam, Deylam, and Deilam), was the name of a mountainous region of inland Gilan, Iran. It was so named for its inhabitants, known as the Daylamites. The Church of the East es ...

ite

Buwayhid The Buyid dynasty ( fa, آل بویه, Āl-e Būya), also spelled Buwayhid ( ar, البويهية, Al-Buwayhiyyah), was a Shia Iranian dynasty of Daylamite origin, which mainly ruled over Iraq and central and southern Iran from 934 to 1062. Coupl ...

king, Panah Khusraw

Adud ad-Dawlah Fannā (Panāh) Khusraw ( fa, پناه خسرو), better known by his laqab of ʿAḍud al-Dawla ( ar, عضد الدولة, "Pillar of the bbasidDynasty") (September 24, 936 – March 26, 983) was an emir of the Buyid dynasty, ruling from 9 ...

, ordered the digging of a

canal Canals or artificial waterways are waterways or engineered channels built for drainage management (e.g. flood control and irrigation) or for conveyancing water transport vehicles (e.g. water taxi). They carry free, calm surface flow un ...

to join the

Karun The Karun ( fa, کارون, ) is the Iranian river with the highest water flow, and its only navigable river. It is long. It rises in the Zard Kuh mountains of the Bakhtiari people, Bakhtiari district in the Zagros Range, receiving many tribut ...

River, which at the time emptied independently into the

Persian Gulf The Persian Gulf ( fa, خلیج فارس, translit=xalij-e fârs, lit=Gulf of Persis, Fars, ), sometimes called the ( ar, اَلْخَلِيْجُ ٱلْعَرَبِيُّ, Al-Khalīj al-ˁArabī), is a Mediterranean sea (oceanography), me ...

through the

Bahmanshir The Bahmanshir channel ( fa, بهمن‌شیر, ) is a secondary estuary of the Karun River that parallels the Shatt al-Arab/Arvand Rud waterway on the far side of the Abadan Island, Iran, for 70 miles before emptying into the Persian Gulf. The ...

channel, to the

Shatt al-Arab The Shatt al-Arab ( ar, شط العرب, lit=River of the Arabs; fa, اروندرود, Arvand Rud, lit=Swift River) is a river of some in length that is formed at the confluence of the Euphrates and Tigris rivers in the town of al-Qurnah in ...

waterway (known as

Arvand Rud The Shatt al-Arab ( ar, شط العرب, lit=River of the Arabs; fa, اروندرود, Arvand Rud, lit=Swift River) is a river of some in length that is formed at the confluence of the Euphrates and Tigris rivers in the town of al-Qurnah in ...

in Iran), the joint

estuary An estuary is a partially enclosed coastal body of brackish water with one or more rivers or streams flowing into it, and with a free connection to the open sea. Estuaries form a transition zone between river environments and maritime environment ...

of the

Tigris The Tigris () is the easternmost of the two great rivers that define Mesopotamia, the other being the Euphrates. The river flows south from the mountains of the Armenian Highlands through the Syrian and Arabian Deserts, and empties into the ...

and

Euphrates The Euphrates () is the longest and one of the most historically important rivers of Western Asia. Tigris–Euphrates river system, Together with the Tigris, it is one of the two defining rivers of Mesopotamia ( ''the land between the rivers'') ...

rivers. The extra water from the

, which, at times during the spring melt, discharged over 27 times the volume of the Tigris-Euphrates water that reaches the Shatt al-Arab) makes the joint estuary more reliably navigable. The estuary thus created was known as the Haffar,

Arabic Arabic (, ' ; , ' or ) is a Semitic languages, Semitic language spoken primarily across the Arab world.Semitic languages: an international handbook / edited by Stefan Weninger; in collaboration with Geoffrey Khan, Michael P. Streck, Janet C ...

for "excavated," "dug out," which exactly described what the channel was: a man-made canal. The Haffar soon became the main estuary of the Karun, as it is at present, replacing the

. In the 19th century, the port of Muhammarah was built on the Haffar. In the 1930s, the ports was renamed

Khorramshahr Khorramshahr ( fa, خرمشهر , also romanized as ''Khurramshahr'', ar, المحمرة, romanized as ''Al-Muhammerah'') is a city and capital of Khorramshahr County, Khuzestan Province, Iran. At the 2016 census, its population was 170,976, in ...

(q.v.) Rivers of Khuzestan Province Shatt al-Arab basin {{Iran-river-stub