The Euphrates (/juːˈfreɪtiːz/ (listen); Sumerian: 𒌓𒄒𒉣 Buranuna; Akkadian: 𒌓𒄒𒉣 Purattu; Arabic: الفرات‎, translit. al-Furāt; Syriac: ̇ܦܪܬPǝrāt; Armenian: Եփրատ: Yeprat; Hebrew: פרתPerat; Turkish: Fırat; Kurdish: Firat‎) is the longest and one of the most historically important rivers of Western Asia. Together with the Tigris, it is one of the two defining rivers of Mesopotamia (the "Land between the Rivers"). Originating in eastern Turkey, the Euphrates flows through Syria and Iraq to join the Tigris in the Shatt al-Arab, which empties into the Persian Gulf.

The Euphrates near Halabiye (Syria); the archaeological site Zalabiye can be seen in the background on the left bank.
Map of the combined Tigris–Euphrates drainage basin (in yellow)
Etymologyfrom Greek, from Old Persian Ufrātu, from Elamite ú-ip-ra-tu-iš
CountryIraq, Syria, Turkey
Basin areaTurkey, Syria, Iraq, Saudi Arabia, Kuwait, Iran
CitiesBirecik, Raqqa, Deir ez-Zor, Mayadin, Haditha, Ramadi, Habbaniyah, Fallujah, Kufa, Samawah, Nasiriyah
Physical characteristics
 - locationMurat Su, Turkey
 - elevation3,520 m (11,550 ft)
2nd source 
 - locationKara Su, Turkey
 - elevation3,290 m (10,790 ft)
Source confluence 
 - locationKeban, Turkey
 - elevation610 m (2,000 ft)
MouthShatt al-Arab
 - location
Al-Qurnah, Basra Governorate, Iraq
 - coordinates
31°0′18″N 47°26′31″E / 31.00500°N 47.44194°ECoordinates: 31°0′18″N 47°26′31″E / 31.00500°N 47.44194°E
Length2,800 km (1,700 mi)approx.
Basin size500,000 km2 (190,000 sq mi)approx.
 - locationHīt
 - average356 m3/s (12,600 cu ft/s)
 - minimum58 m3/s (2,000 cu ft/s)
 - maximum2,514 m3/s (88,800 cu ft/s)
Basin features
 - leftBalikh, Khabur
 - rightSajur


The Ancient Greek form Euphrátēs (Ancient Greek: Εὐφράτης, as if from Greek εὖ "good" and ϕράζω "I announce or declare") was adapted from Old Persian 𐎢𐎳𐎼𐎠𐎬𐎢 Ufrātu,[1] itself from Elamite 𒌑𒅁𒊏𒌅𒅖 ú-ip-ra-tu-iš. The Elamite name is ultimately derived from a name spelt in cuneiform as 𒌓𒄒𒉣 , which read as Sumerian language is "Buranuna" and read as Akkadian language is "Purattu"; many cuneiform signs have a Sumerian pronunciation and an Akkadian pronunciation, taken from a Sumerian word and an Akkadian word that mean the same. In Akkadian the river was called Purattu,[2] which has been perpetuated in Semitic languages (cf. Syriac P(ə)rāṯ, Arabic al-Furāt) and in other nearby languages of the time (cf. Hurrian Puranti, Sabarian Uruttu). The Elamite, Akkadian, and possibly Sumerian forms are suggested to be from an unrecorded substrate language.[3] Tamaz V. Gamkrelidze and Vyacheslav Ivanov suggest the Proto-Sumerian *burudu "copper" (Sumerian urudu) as an origin, with an explanation that Euphrates was the river by which the copper ore was transported in rafts, since Mesopotamia was the center of copper metallurgy during the period.[4]

The earliest references to the Euphrates come from cuneiform texts found in Shuruppak and pre-Sargonic Nippur in southern Iraq and date to the mid-3rd millennium BCE. In these texts, written in Sumerian, the Euphrates is called Buranuna (logographic: UD.KIB.NUN). The name could also be written KIB.NUN.(NA) or dKIB.NUN, with the prefix "d" indicating that the river was a divinity. In Sumerian, the name of the city of Sippar in modern-day Iraq was also written UD.KIB.NUN, indicating a historically strong relationship between the city and the river.


The Euphrates is the longest river of Western Asia.[5] It emerges from the confluence of the Kara Su or Western Euphrates (450 kilometres (280 mi)) and the Murat Su or Eastern Euphrates (650 kilometres (400 mi)) 10 kilometres (6.2 mi) upstream from the town of Keban in southeastern Turkey.[6] Daoudy and Frenken put the length of the Euphrates from the source of the Murat River to the confluence with the Tigris at 3,000 kilometres (1,900 mi), of which 1,230 kilometres (760 mi) is in Turkey, 710 kilometres (440 mi) in Syria and 1,060 kilometres (660 mi) in Iraq.[7][8] The same figures are given by Isaev and Mikhailova.[9] The length of the Shatt al-Arab, which connects the Euphrates and the Tigris with the Persian Gulf, is given by various sources as 145–195 kilometres (90–121 mi).[10]

Both the Kara Su and the Murat Su rise northwest from Lake Van at elevations of 3,290 metres (10,790 ft) and 3,520 metres (11,550 ft) amsl, respectively.[11] At the location of the Keban Dam, the two rivers, now combined into the Euphrates, have dropped to an elevation of 693 metres (2,274 ft) amsl. From Keban to the Syrian–Turkish border, the river drops another 368 metres (1,207 ft) over a distance of less than 600 kilometres (370 mi). Once the Euphrates enters the Upper Mesopotamian plains, its grade drops significantly; within Syria the river falls 163 metres (535 ft) while over the last stretch between Hīt and the Shatt al-Arab the river drops only 55 metres (180 ft).[6][12]

Discharge of the Euphrates

The Euphrates receives most of its water in the form of rainfall and melting snow, resulting in peak volumes during the months April through May. Discharge in these two months accounts for 36 percent of the total annual discharge of the Euphrates, or even 60–70 percent according to one source, while low runoff occurs in summer and autumn.[9][13] The average natural annual flow of the Euphrates has been determined from early- and mid-twentieth century records as 20.9 cubic kilometres (5.0 cu mi) at Keban, 36.6 cubic kilometres (8.8 cu mi) at Hīt and 21.5 cubic kilometres (5.2 cu mi) at Hindiya.[14] However, these averages mask the high inter-annual variability in discharge; at Birecik, just north of the Syro–Turkish border, annual discharges have been measured that ranged from a low volume of 15.3 cubic kilometres (3.7 cu mi) in 1961 to a high of 42.7 cubic kilometres (10.2 cu mi) in 1963.[15]

The discharge regime of the Euphrates has changed dramatically since the construction of the first dams in the 1970s. Data on Euphrates discharge collected after 1990 show the impact of the construction of the numerous dams in the Euphrates and of the increased withdrawal of water for irrigation. Average discharge at Hīt after 1990 has dropped to 356 cubic metres (12,600 cu ft) per second (11.2 cubic kilometres (2.7 cu mi) per year). The seasonal variability has equally changed. The pre-1990 peak volume recorded at Hīt was 7,510 cubic metres (265,000 cu ft) per second, while after 1990 it is only 2,514 cubic metres (88,800 cu ft) per second. The minimum volume at Hīt remained relatively unchanged, rising from 55 cubic metres (1,900 cu ft) per second before 1990 to 58 cubic metres (2,000 cu ft) per second afterward.[16][17]


Murat 05
View of the Murat River

In Syria, three rivers add their water to the Euphrates; the Sajur, the Balikh and the Khabur. These rivers rise in the foothills of the Taurus Mountains along the Syro–Turkish border and add comparatively little water to the Euphrates. The Sajur is the smallest of these tributaries; emerging from two streams near Gaziantep and draining the plain around Manbij before emptying into the reservoir of the Tishrin Dam. The Balikh receives most of its water from a karstic spring near 'Ayn al-'Arus and flows due south until it reaches the Euphrates at the city of Raqqa. In terms of length, drainage basin and discharge, the Khabur is the largest of these three. Its main karstic springs are located around Ra's al-'Ayn, from where the Khabur flows southeast past Al-Hasakah, where the river turns south and drains into the Euphrates near Busayrah. Once the Euphrates enters Iraq, there are no more natural tributaries to the Euphrates, although canals connecting the Euphrates basin with the Tigris basin exist.[18][19]

Name Length Watershed size Discharge Bank
Kara Su 450 km (280 mi) 22,000 km2 (8,500 sq mi) Confluence
Murat River 650 km (400 mi) 40,000 km2 (15,000 sq mi) Confluence
Sajur River 108 km (67 mi) 2,042 km2 (788 sq mi) 4.1 m3/s (145 cu ft/s) Right
Balikh River 100 km (62 mi) 14,400 km2 (5,600 sq mi) 6 m3/s (212 cu ft/s) Left
Khabur River 486 km (302 mi) 37,081 km2 (14,317 sq mi) 45 m3/s (1,600 cu ft/s) Left

Drainage basin

Tigre et Euphrate
French map from the 17th century showing the Euphrates and the Tigris

The drainage basins of the Kara Su and the Murat River cover an area of 22,000 square kilometres (8,500 sq mi) and 40,000 square kilometres (15,000 sq mi), respectively.[6] Estimates of the area of the Euphrates drainage basin vary widely; from a low 233,000 square kilometres (90,000 sq mi) to a high 766,000 square kilometres (296,000 sq mi).[9] Recent estimates put the basin area at 388,000 square kilometres (150,000 sq mi),[6] 444,000 square kilometres (171,000 sq mi)[7][20] and 579,314 square kilometres (223,674 sq mi).[21] The greater part of the Euphrates basin is located in Turkey, Syria, and Iraq. According to both Daoudy and Frenken, Turkey's share is 28 percent, Syria's is 17 percent and that of Iraq is 40 percent.[7][8] Isaev and Mikhailova estimate the percentages of the drainage basin lying within Turkey, Syria and Iraq at 33, 20 and 47 percent respectively.[9] Some sources estimate that approximately 15 percent of the drainage basin is located within Saudi Arabia, while a small part falls inside the borders of Kuwait.[7][8] Finally, some sources also include Jordan in the drainage basin of the Euphrates; a small part of the eastern desert (220 square kilometres (85 sq mi)) drains toward the east rather than to the west.[9][22]

Natural history

The Euphrates flows through a number of distinct vegetation zones. Although millennia-long human occupation in most parts of the Euphrates basin has significantly degraded the landscape, patches of original vegetation remain. The steady drop in annual rainfall from the sources of the Euphrates toward the Persian Gulf is a strong determinant for the vegetation that can be supported. In its upper reaches the Euphrates flows through the mountains of Southeast Turkey and their southern foothills which support a xeric woodland. Plant species in the moister parts of this zone include various oaks, pistachio trees, and Rosaceae (rose/plum family). The drier parts of the xeric woodland zone supports less dense oak forest and Rosaceae. Here can also be found the wild variants of many cereals, including einkorn wheat, emmer wheat, oat and rye.[23] South of this zone lies a zone of mixed woodland-steppe vegetation. Between Raqqa and the Syro–Iraqi border the Euphrates flows through a steppe landscape. This steppe is characterised by white wormwood (Artemisia herba-alba) and Chenopodiaceae. Throughout history, this zone has been heavily overgrazed due to the practicing of sheep and goat pastoralism by its inhabitants.[24] Southeast of the border between Syria and Iraq starts true desert. This zone supports either no vegetation at all or small pockets of Chenopodiaceae or Poa sinaica. Although today nothing of it survives due to human interference, research suggests that the Euphrates Valley would have supported a riverine forest. Species characteristic of this type of forest include the Oriental plane, the Euphrates poplar, the tamarisk, the ash and various wetland plants.[25]

Among the fish species in the Tigris–Euphrates basin, the family of the Cyprinidae are the most common, with 34 species out of 52 in total.[26] Among the Cyprinids, the mangar has good sport fishing qualities, leading the British to nickname it "Tigris salmon." The Rafetus euphraticus is an endangered soft-shelled turtle that is limited to the Tigris–Euphrates river system.[27][28]

The Neo-Assyrian palace reliefs from the 1st millennium BCE depict lion and bull hunts in fertile landscapes.[29] Sixteenth to nineteenth century European travellers in the Syrian Euphrates basin reported on an abundance of animals living in the area, many of which have become rare or even extinct. Species like gazelle, onager and the now-extinct Arabian ostrich lived in the steppe bordering the Euphrates valley, while the valley itself was home to the wild boar. Carnivorous species include the gray wolf, the golden jackal, the red fox, the leopard and the lion. The Syrian brown bear can be found in the mountains of Southeast Turkey. The presence of European beaver has been attested in the bone assemblage of the prehistoric site of Abu Hureyra in Syria, but the beaver has never been sighted in historical times.[30]

River modifications

Bassin Tigre Euphrate
Map (in French) showing the locations of dams and barrages built in the SyroTurkish part of the Euphrates basin

The Hindiya Barrage on the Iraqi Euphrates, based on plans by British civil engineer William Willcocks and finished in 1913, was the first modern water diversion structure built in the Tigris–Euphrates river system.[31] The Hindiya Barrage was followed in the 1950s by the Ramadi Barrage and the nearby Abu Dibbis Regulator, which serve to regulate the flow regime of the Euphrates and to discharge excess flood water into the depression that is now Lake Habbaniyah. Iraq's largest dam on the Euphrates is the Haditha Dam; a 9-kilometre-long (5.6 mi) earth-fill dam creating Lake Qadisiyah.[32] Syria and Turkey built their first dams in the Euphrates in the 1970s. The Tabqa Dam in Syria was completed in 1973 while Turkey finished the Keban Dam, a prelude to the immense Southeastern Anatolia Project, in 1974. Since then, Syria has built two more dams in the Euphrates, the Baath Dam and the Tishrin Dam, and plans to build a fourth dam – the Halabiye Dam – between Raqqa and Deir ez-Zor.[33] The Tabqa Dam is Syria's largest dam and its reservoir (Lake Assad) is an important source of irrigation and drinking water. It was planned that 640,000 hectares (2,500 sq mi) should be irrigated from Lake Assad, but in 2000 only 100,000–124,000 hectares (390–480 sq mi) had been realized.[34][35] Syria also built three smaller dams on the Khabur and its tributaries.[36]

With the implementation of the Southeastern Anatolia Project (Turkish: Güneydoğu Anadolu Projesi, or GAP) in the 1970s, Turkey launched an ambitious plan to harness the waters of the Tigris and the Euphrates for irrigation and hydroelectricity production and provide an economic stimulus to its southeastern provinces.[37] GAP affects a total area of 75,000 square kilometres (29,000 sq mi) and approximately 7 million people; representing about 10 percent of Turkey's total surface area and population, respectively. When completed, GAP will consist of 22 dams – including the Keban Dam – and 19 power plants and provide irrigation water to 1,700,000 hectares (6,600 sq mi) of agricultural land, which is about 20 percent of the irrigable land in Turkey.[38] C. 910,000 hectares (3,500 sq mi) of this irrigated land is located in the Euphrates basin.[39] By far the largest dam in GAP is the Atatürk Dam, located c. 55 kilometres (34 mi) northwest of Şanlıurfa. This 184-metre-high (604 ft) and 1,820-metre-long (5,970 ft) dam was completed in 1992; thereby creating a reservoir that is the third-largest lake in Turkey. With a maximum capacity of 48.7 cubic kilometres (11.7 cu mi), the Atatürk Dam reservoir is large enough to hold the entire annual discharge of the Euphrates.[40] Completion of GAP was scheduled for 2010 but has been delayed because the World Bank has withheld funding due to the lack of an official agreement on water sharing between Turkey and the downstream states on the Euphrates and the Tigris.[41]

Apart from barrages and dams, Iraq has also created an intricate network of canals connecting the Euphrates with Lake Habbaniyah, Lake Tharthar, and Abu Dibbis reservoir; all of which can be used to store excess floodwater. Via the Shatt al-Hayy, the Euphrates is connected with the Tigris. The largest canal in this network is the Main Outfall Drain or so-called "Third River;" constructed between 1953 and 1992. This 565-kilometre-long (351 mi) canal is intended to drain the area between the Euphrates and the Tigris south of Baghdad to prevent soil salinization from irrigation. It also allows large freight barges to navigate up to Baghdad.[42][43][44]

Environmental and social effects

Keban Dam in Turkey, the first dam on the Euphrates after it emerges from the confluence of the Kara Su and the Murat Su
Qal'at Ja'bar in Syria, once perched on a hilltop overlooking the Euphrates valley but now turned into an island by the flooding of Lake Assad

The construction of the dams and irrigation schemes on the Euphrates has had a significant impact on the environment and society of each riparian country. The dams constructed as part of GAP – in both the Euphrates and the Tigris basins – have affected 382 villages and almost 200,000 people have been resettled elsewhere. The largest number of people was displaced by the building of the Atatürk Dam, which alone affected 55,300 people.[45] A survey among those who were displaced showed that the majority were unhappy with their new situation and that the compensation they had received was considered insufficient.[46] The flooding of Lake Assad led to the forced displacement of c. 4,000 families, who were resettled in other parts of northern Syria as part of a now abandoned plan to create an "Arab belt" along the borders with Turkey and Iraq.[47][48][49]

Apart from the changes in the discharge regime of the river, the numerous dams and irrigation projects have also had other effects on the environment. The creation of reservoirs with large surfaces in countries with high average temperatures has led to increased evaporation; thereby reducing the total amount of water that is available for human use. Annual evaporation from reservoirs has been estimated at 2 cubic kilometres (0.48 cu mi) in Turkey, 1 cubic kilometre (0.24 cu mi) in Syria and 5 cubic kilometres (1.2 cu mi) in Iraq.[50] Water quality in the Iraqi Euphrates is low because irrigation water tapped in Turkey and Syria flows back into the river, together with dissolved fertilizer chemicals used on the fields.[51] The salinity of Euphrates water in Iraq has increased as a result of upstream dam construction, leading to lower suitability as drinking water.[52] The many dams and irrigation schemes, and the associated large-scale water abstraction, have also had a detrimental effect on the ecologically already fragile Mesopotamian Marshes and on freshwater fish habitats in Iraq.[53][54]

The inundation of large parts of the Euphrates valley, especially in Turkey and Syria, has led to the flooding of many archaeological sites and other places of cultural significance.[55] Although concerted efforts have been made to record or save as much of the endangered cultural heritage as possible, many sites are probably lost forever. The combined GAP projects on the Turkish Euphrates have led to major international efforts to document the archaeological and cultural heritage of the endangered parts of the valley. Especially the flooding of Zeugma with its unique Roman mosaics by the reservoir of the Birecik Dam has generated much controversy in both the Turkish and international press.[56][57] The construction of the Tabqa Dam in Syria led to a large international campaign coordinated by UNESCO to document the heritage that would disappear under the waters of Lake Assad. Archaeologists from numerous countries excavated sites ranging in date from the Natufian to the Abbasid period, and two minarets were dismantled and rebuilt outside the flood zone. Important sites that have been flooded or affected by the rising waters of Lake Assad include Mureybet, Emar and Abu Hureyra.[58] A similar international effort was made when the Tishrin Dam was constructed, which led, among others, to the flooding of the important Pre-Pottery Neolithic B site of Jerf el-Ahmar.[59] An archaeological survey and rescue excavations were also carried out in the area flooded by Lake Qadisiya in Iraq.[60] Parts of the flooded area have recently become accessible again due to the drying up of the lake, resulting not only in new possibilities for archaeologists to do more research, but also providing opportunities for looting, which has been rampant elsewhere in Iraq in the wake of the 2003 invasion.[61]


20151228-Euphrates 9283
A fishing boat in the Euphrates Southern Iraq

Palaeolithic to Chalcolithic periods

The early occupation of the Euphrates basin was limited to its upper reaches; that is, the area that is popularly known as the Fertile Crescent. Acheulean stone artifacts have been found in the Sajur basin and in the El Kowm oasis in the central Syrian steppe; the latter together with remains of Homo erectus that were dated to 450,000 years old.[62][63] In the Taurus Mountains and the upper part of the Syrian Euphrates valley, early permanent villages such as Abu Hureyra – at first occupied by hunter-gatherers but later by some of the earliest farmers, Jerf el-Ahmar, Mureybet and Nevalı Çori became established from the eleventh millennium BCE onward.[64] In the absence of irrigation, these early farming communities were limited to areas where rainfed agriculture was possible, that is, the upper parts of the Syrian Euphrates as well as Turkey.[65] Late Neolithic villages, characterized by the introduction of pottery in the early 7th millennium BCE, are known throughout this area.[66] Occupation of lower Mesopotamia started in the 6th millennium and is generally associated with the introduction of irrigation, as rainfall in this area is insufficient for dry agriculture. Evidence for irrigation has been found at several sites dating to this period, including Tell es-Sawwan.[67] During the 5th millennium BCE, or late Ubaid period, northeastern Syria was dotted by small villages, although some of them grew to a size of over 10 hectares (25 acres).[68] In Iraq, sites like Eridu and Ur were already occupied during the Ubaid period.[69] Clay boat models found at Tell Mashnaqa along the Khabur indicate that riverine transport was already practiced during this period.[70] The Uruk period, roughly coinciding with the 4th millennium BCE, saw the emergence of truly urban settlements across Mesopotamia. Cities like Tell Brak and Uruk grew to over 100 hectares (250 acres) in size and displayed monumental architecture.[71] The spread of southern Mesopotamian pottery, architecture and sealings far into Turkey and Iran has generally been interpreted as the material reflection of a widespread trade system aimed at providing the Mesopotamian cities with raw materials. Habuba Kabira on the Syrian Euphrates is a prominent example of a settlement that is interpreted as an Uruk colony.[72][73]

Ancient history

During the Jemdet Nasr (3600–3100 BCE) and Early Dynastic periods (3100–2350 BCE), southern Mesopotamia experienced a growth in the number and size of settlements, suggesting strong population growth. These settlements, including Sumero-Akkadian sites like Sippar, Uruk, Adab and Kish, were organized in competing city-states.[74] Many of these cities were located along canals of the Euphrates and the Tigris that have since dried up, but that can still be identified from remote sensing imagery.[75] A similar development took place in Upper Mesopotamia, Subartu and Assyria, although only from the mid 3rd millennium and on a smaller scale than in Lower Mesopotamia. Sites like Ebla, Mari and Tell Leilan grew to prominence for the first time during this period.[76]

Large parts of the Euphrates basin were for the first time united under a single ruler during the Akkadian Empire (2335–2154 BC) and Ur III empires, which controlled – either directly or indirectly through vassals – large parts of modern-day Iraq and northeastern Syria.[77] Following their collapse, the Old Assyrian Empire (1975–1750 BCE) and Mari asserted their power over northeast Syria and northern Mesopotamia, while southern Mesopotamia was controlled by city-states like Isin, Kish and Larsa before their territories were absorbed by the newly emerged state of Babylonia under Hammurabi in the early to mid 18th century BCE.[78]

In the second half of the 2nd millennium BCE, the Euphrates basin was divided between Kassite Babylon in the south and Mitanni, Assyria and the Hittite Empire in the north, with the Middle Assyrian Empire (1365–1020 BC) eventually eclipsing the Hittites, Mitanni and Kassite Babylonians.[79] Following the end of the Middle Assyrian Empire in the late 11th century BCE, struggles broke out between Babylonia and Assyria over the control of the Iraqi Euphrates basin. The Neo-Assyrian Empire (935–605 BC) eventually emerged victorious out of this conflict and also succeeded in gaining control of the northern Euphrates basin in the first half of the 1st millennium BCE.[80]

In the centuries to come, control of the wider Euphrates basin shifted from the Neo-Assyrian Empire (which collapsed between 612 and 599 BC) to the short lived Median Empire (612–546 BC) and equally brief Neo-Babylonian Empire (612–539 BC) in the last years of the 7th century BC, and eventually to the Achaemenid Empire (539–333 BC).[81] The Achaemenid Empire was in turn overrun by Alexander the Great, who defeated the last king Darius III and died in Babylon in 323 BCE.[82]

Subsequent to this, the region came under the control of the Seleucid Empire (312–150 BC), Parthian Empire (150–226 AD) (during which several Neo-Assyrian states such as Adiabene came to rule certain regions of the Euphrates), and was fought over by the Roman Empire, its succeeding Byzantine Empire and the Sassanid Empire (226–638 AD), until the Islamic conquest of the mid 7th century AD. The Battle of Karbala took place near the banks of this river in 680 AD.

Modern era

Baghdad Railway Euphrates wooden bridge
Wooden bridge carrying the Baghdad Railway over the Euphrates, ca. 1900–1910

After World War I, the borders in Southwest Asia were redrawn in the Treaty of Lausanne (1923), when the Ottoman Empire was partitioned. Clause 109 of the treaty stipulated that the three riparian states of the Euphrates (at that time Turkey, France for its Syrian mandate and the United Kingdom for its mandate of Iraq) had to reach a mutual agreement on the use of its water and on the construction of any hydraulic installation.[83] An agreement between Turkey and Iraq signed in 1946 required Turkey to report to Iraq on any hydraulic changes it made on the Tigris–Euphrates river system, and allowed Iraq to construct dams on Turkish territory to manage the flow of the Euphrates.[84]

Coat of arms of the Kingdom of Iraq
Coat of arms of the Kingdom of Iraq 1932-1959 depicting the two rivers, the confluence Shatt al-Arab and the date palm forest, which used to be the largest in the world

The river featured on the coat of arms of Iraq from 1932-1959.

Euphrates River (1)
Euphrates near Kahta.

Turkey and Syria completed their first dams on the Euphrates – the Keban Dam and the Tabqa Dam, respectively – within one year of each other and filling of the reservoirs commenced in 1975. At the same time, the area was hit by severe drought and river flow toward Iraq was reduced from 15.3 cubic kilometres (3.7 cu mi) in 1973 to 9.4 cubic kilometres (2.3 cu mi) in 1975. This led to an international crisis during which Iraq threatened to bomb the Tabqa Dam. An agreement was eventually reached between Syria and Iraq after intervention by Saudi Arabia and the Soviet Union.[85][86] A similar crisis, although not escalating to the point of military threats, occurred in 1981 when the Keban Dam reservoir had to be refilled after it had been almost emptied to temporarily increase Turkey's hydroelectricity production.[87] In 1984, Turkey unilaterally declared that it would ensure a flow of at least 500 cubic metres (18,000 cu ft) per second, or 16 cubic kilometres (3.8 cu mi) per year, into Syria, and in 1987 a bilateral treaty to that effect was signed between the two countries.[88] Another bilateral agreement from 1989 between Syria and Iraq settles the amount of water flowing into Iraq at 60 percent of the amount that Syria receives from Turkey.[84][86][89] In 2008, Turkey, Syria and Iraq instigated the Joint Trilateral Committee (JTC) on the management of the water in the Tigris–Euphrates basin and on 3 September 2009 a further agreement was signed to this effect.[90] On April 15, 2014, Turkey began to reduce the flow of the Euphrates into Syria and Iraq. The flow was cut off completely on May 16, 2014 resulting in the Euphrates terminating at the Turkish–Syrian border.[91] This was in violation of an agreement reached in 1987 in which Turkey committed to releasing a minimum of 500 cubic metres (18,000 cu ft) of water per second at the Turkish–Syrian border.[92]


Euphrates River
Euphrates in Iraq, 2005

Throughout history, the Euphrates has been of vital importance to those living along its course. With the construction of large hydropower stations, irrigation schemes, and pipelines capable of transporting water over large distances, many more people now depend on the river for basic amenities such as electricity and drinking water than in the past. Syria's Lake Assad is the most important source of drinking water for the city of Aleppo, 75 kilometres (47 mi) to the west of the river valley.[93] The lake also supports a modest state-operated fishing industry.[94] Through a newly restored power line, the Haditha Dam in Iraq provides electricity to Baghdad.[95]


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External links

  • Media related to Euphrates at Wikimedia Commons
2017 Euphrates Crossing offensive

The 2017 Euphrates Crossing offensive was a military offensive launched by the Syrian Arab Army against members of the Islamic State of Iraq and the Levant (ISIL) in the Deir ez-Zor Governorate, following the breaking of the three-year siege of the city of Deir ez-Zor. The Euphrates Crossing offensive, conducted by government troops, was done with the aim of denying US-backed Syrian Democratic Forces and the US itself leverage over the Syrian government.The offensive was concurrent with the two SDF offensives, the Battle of Raqqa and the northern Deir ez-Zor offensive, as well the Hawija Offensive in Iraq.

2018 Northern Syria border clashes

The 2018 Northern Syria Border Clashes began on 31 October 2018 when the Turkish Armed Forces began to shell People's Protection Units (YPG) positions near the cities of Kobani and Tell Abyad as well as surrounding villages. Turkey views YPG as an extension of the outlawed Kurdistan Workers' Party (PKK), which has been waging an insurgency in Turkey for over 40 years.

Apamea (Euphrates)

Apamea or Apameia (Greek: Απάμεια) was a Hellenistic city on the left (viz.,the east) bank of the Euphrates, opposite the famous city of Zeugma, at the end of a bridge of boats (Greek: zeugma) connecting the two, founded by Seleucus I Nicator (Pliny, v. 21). The city was rebuilt by Seleucus I. The site, once partially covered by the village of Tilmusa (formerly Rumkale), Şanlıurfa Province, Turkey, is now flooded by the lake formed by the Birecik Dam (Birejik Dam).The ancient term Zeugma actually referred to the twin cities on the opposing banks of the river. Today the name Zeugma is usually understood to refer to the settlement on the west bank, called Seleucia (Greek: Σελεύκεια) after the founder, while the one on the East bank was called Apamea after his Persian wife Apama.

Atatürk Dam

The Atatürk Dam (Turkish: Atatürk Barajı), originally the Karababa Dam, is a zoned rock-fill dam with a central core on the Euphrates River on the border of Adıyaman Province and Şanlıurfa Province in the Southeastern Anatolia Region of Turkey. Built both to generate electricity and to irrigate the plains in the region, it was renamed in honour of Mustafa Kemal Atatürk (1881–1938), the founder of the Turkish Republic. The construction began in 1983 and was completed in 1990. The dam and the hydroelectric power plant, which went into service after the upfilling of the reservoir was completed in 1992, are operated by the State Hydraulic Works (DSİ). The reservoir created behind the dam, called Lake Atatürk Dam (Turkish: Atatürk Baraj Gölü), is the third largest in the world.

The dam is situated 23 km (14 mi) northwest of Bozova, Şanlıurfa Province, on state road D-875 from Bozova to Adıyaman. Centerpiece of the 22 dams on the Euphrates and the Tigris, which comprise the integrated, multi-sector, Southeastern Anatolia Project (Turkish: Güney Doğu Anadolu Projesi, known as GAP), it is one of the world's largest dams. The Atatürk Dam, one of the five operational dams on the Euphrates as of 2008, was preceded by Keban and Karakaya dams upstream and followed by Birecik and the Karkamış dams downstream. Two more dams on the river have been under construction.

The dam embankment is 169 m high (554 ft) and 1,820 m long (5,970 ft). The hydroelectric power plant (HEPP) has a total installed power capacity of 2,400 MW and generates 8,900 GW·h electricity annually.

The total cost of the dam project was about US$1,250,000,000.The dam was depicted on the reverse of the Turkish one-million-lira banknotes of 1995–2005 and of the 1 new lira banknote of 2005–2009.

Birecik Dam

The Birecik Dam, one of the 21 dams of the Southeastern Anatolia Project of Turkey, is located on the Euphrates River 60 km (37 mi) downstream of Atatürk Dam and 8 km (5.0 mi) upstream of Birecik town 80 km (50 mi) west of Province of Şanlıurfa in the southeastern region of Turkey. It was purposed for irrigation and energy production. There is a run-of-the-river hydroelectric power plant, established in 2001, at the dam, with a power output of 672MW (six facilities at 112 MW each) can generate an average of 2.5 billion kWh per year. The Birecik dam is a structure consisting of a concrete gravity and clay core sandgravel fill with a height of 62.5 m (205 ft) from the foundation. It was designed by Coyne et Bellier. The total catchment area is 92,700 ha (358 sq mi). The Birecik project will be realized under the status of Build-Operate-Transfer (BOT) model.

The dam was built on top of the ruins of the ancient city of Zeugma. According to Bogumil Terminski (2015), the construction of the dam resulted in resettlement of approximately 6,000 people.

Deir ez-Zor campaign (September 2017–present)

The Deir ez-Zor campaign, named by the Syrian Democratic Forces (SDF) as the al-Jazeera Storm campaign, is a military operation launched by the SDF against the Islamic State of Iraq and the Levant (ISIL) in the Deir ez-Zor Governorate with the goal of capturing territory east and north of the Euphrates river, in eastern Syria. The campaign stalled and was paused in early 2018, due to the Turkish-led invasion of Afrin, but resumed on 1 May 2018 with the new phase named by the U.S.-led Combined Joint Task Force – Operation Inherent Resolve (CJTF–OIR) Coalition as Operation Roundup. The third phase started on 10 September 2018 but was once again halted due to Turkish artillery attacks on SDF positions near the Syria-Turkey border on 31 October. The SDF and anti-ISIL Coalition announced the resumption of the offensive on 11 November. After a string of steady success after the capturing of Hajin and a ten day pause for civilian relief, the SDF launched its final assault on the remainder of the Middle Euphrates River Valley (MERV) pocket on 9 February 2019.The first phase of the campaign was concurrent with another SDF operation, the Raqqa campaign conducted against ISIL's capital city and stronghold in Syria, as well as with the Central Syria campaign and the Eastern Syria campaign, in which the Syrian Army (SAA) was also capturing territory from the Islamic State, and also with the Iraqi Army's 2017 Western Iraq campaign.

Karakaya Dam

The Karakaya Dam is one of the 21 dams of the Southeastern Anatolia Project of Turkey, built on the Euphrates River and completed in 1987. The hydroelectric dam generates power with six units of 300 MW, totalling the installed capacity to 1,800 MW.

Keban Dam

The Keban Dam (Turkish: Keban Barajı) is a hydroelectric dam on the Euphrates, located in the Elazığ Province of Turkey. The dam was the first and uppermost of several large-scale dams to be built on the Euphrates by Turkey. Although the Keban Dam was not originally constructed as a part of the Southeastern Anatolia Project (GAP), it is now a fully integrated component of the project, which aims to stimulate economic development in Southeastern Turkey. Construction of the dam commenced in 1966 and was completed in 1974. Keban Dam Lake (Turkish: Keban Baraj Gölü), the reservoir created by Keban Dam, has a surface area of 675 square kilometres (261 sq mi) and is reputedly the fourth-largest lake in Turkey after Lake Van, Lake Tuz, and the reservoir created by the Atatürk Dam.

Khabur (Euphrates)

The Khabur River (Arabic: الخابور‎ al-khābūr, Kurdish: Xabûr‎, Syriac: ܚܒܘܪ‎ ḥābur/khābur, Turkish: Habur, Ancient Greek: Χαβώρας or Ἀβόρρας or Ἀβούρας - Chaboras, Aborrhas, or Abura, Latin: Chabura) is the largest perennial tributary to the Euphrates in Syrian territory. Although the Khabur originates in Turkey, the karstic springs around Ra's al-'Ayn are the river's main source of water. Several important wadis join the Khabur north of Al-Hasakah, together creating what is known as the Khabur Triangle, or Upper Khabur area. From north to south, annual rainfall in the Khabur basin decreases from over 400 mm to less than 200 mm, making the river a vital water source for agriculture throughout history. The Khabur joins the Euphrates near the town of Busayrah.


Mesopotamia is a historical region of Western Asia situated within the Tigris–Euphrates river system, in modern days roughly corresponding to most of Iraq, Kuwait, parts of Northern Saudi Arabia, the eastern parts of Syria, Southeastern Turkey, and regions along the Turkish–Syrian and Iran–Iraq borders.The Sumerians and Akkadians (including Assyrians and Babylonians) dominated Mesopotamia from the beginning of written history (c. 3100 BC) to the fall of Babylon in 539 BC, when it was conquered by the Achaemenid Empire. It fell to Alexander the Great in 332 BC, and after his death, it became part of the Greek Seleucid Empire.

Around 150 BC, Mesopotamia was under the control of the Parthian Empire. Mesopotamia became a battleground between the Romans and Parthians, with western parts of Mesopotamia coming under ephemeral Roman control. In AD 226, the eastern regions of Mesopotamia fell to the Sassanid Persians. The division of Mesopotamia between Roman (Byzantine from AD 395) and Sassanid Empires lasted until the 7th century Muslim conquest of Persia of the Sasanian Empire and Muslim conquest of the Levant from Byzantines. A number of primarily neo-Assyrian and Christian native Mesopotamian states existed between the 1st century BC and 3rd century AD, including Adiabene, Osroene, and Hatra.

Mesopotamia is the site of the earliest developments of the Neolithic Revolution from around 10,000 BC. It has been identified as having "inspired some of the most important developments in human history including the invention of the wheel, the planting of the first cereal crops and the development of cursive script, mathematics, astronomy and agriculture".

Operation Euphrates Shield

Operation Euphrates Shield (Turkish: Fırat Kalkanı Harekâtı) was a cross-border operation by the Turkish military and Turkey-aligned Syrian opposition groups in the Syrian Civil War which led to the Turkish occupation of northern Syria. Operations were carried out in the region between the Euphrates river to the east and the rebel-held area around Azaz to the west. The Turkish military and Turkey-aligned Syrian rebel groups, some of which used the Free Syrian Army label, fought against forces of the Islamic State of Iraq and the Levant (ISIL) as well as against the Syrian Democratic Forces (SDF) from 24 August 2016. On 29 March 2017, the Turkish military officially announced that Operation Euphrates Shield was "successfully completed".

The Turkish president Recep Tayyip Erdoğan said on the first day of the operation that it was aimed against both the ISIL and Syrian Kurdish "terror groups that threaten our country in northern Syria". The objective to capture Manbij, under the de facto control of the Rojava administration, that had been promulgated by the Turkish president at the end of February 2017 remained unfulfilled.


Ramadi (Arabic: الرمادي‎ Ar-Ramādī; also formerly rendered as Rumadiyah or Rumadiya) is a city in central Iraq, about 110 kilometers (68 mi) west of Baghdad and 50 kilometers (31 mi) west of Fallujah. It is the capital of Al Anbar Governorate. The city extends along the Euphrates and is the largest city in Al-Anbar. Founded by the Ottoman Empire in 1879, by 2011 it had a population of about 375,000 people, the vast majority of whom are Sunni Arabs from the Dulaim tribal confederation. It lies within the Sunni Triangle of western Iraq.

Ramadi occupies a highly strategic location on the Euphrates and the road west into Syria and Jordan. This has made it a hub for trade and traffic, from which the city gained significant prosperity. Its position has meant that it has been fought over several times, during the two World Wars and again during the Iraq War and Iraqi insurgency. It was heavily damaged during the Iraq War, when it was a major focus for the insurgency against occupying United States forces. Following the withdrawal of US forces from Iraq in 2011, the city was contested by the Iraqi government and the extremist group Islamic State of Iraq and the Levant (ISIL) and fell to ISIL in May 2015. On 28 December 2015, the Iraqi government declared that it had re-taken Ramadi from ISIL, that government's first major military victory since the loss of Ramadi some seven months earlier.

Raqqa campaign (2016–2017)

The Raqqa campaign (codenamed Operation Wrath of Euphrates) was a military operation launched by the Syrian Democratic Forces (SDF) against the Islamic State of Iraq and the Levant (ISIL) in the Raqqa Governorate, with the goal of isolating and eventually capturing the Islamic State's capital city, Raqqa. The SDF also completed their other main goals and captured the Tabqa Dam, the nearby city of al-Thawrah, and the Baath Dam further downstream.The offensive was concurrent with the Battle of al-Bab in the Aleppo Governorate, the Battle of Mosul, the Battle of Sirte (2016) in Libya, the Palmyra offensive (2017), the Central Syria campaign, the 2017 Mayadin offensive, and a reignition of fighting in Deir ez-Zor's siege.


Sarrin (Arabic: صرين‎, also spelled Serrin or Sareen) is a town in northern Syria, administratively part of the Aleppo Governorate, located northeast of Aleppo. It is situated 3 kilometers east of the Euphrates River, south of Kobanî and east of Manbij. As a preliminary result of the ongoing Syrian Civil War, Sarrin today is situated in Kobanî Canton within the autonomous Federation of Northern Syria – Rojava framework.

In the 2004 census, the town of Sarrin had a population of 6,140, while the Sarrin subdistrict had a total population of 70,522 mostly Arab.During the Syrian Civil War, the Islamic State of Iraq and the Levant seized control of the town in September 2013. In March 2015, Kurds in the People's Protection Units (YPG), alongside Free Syrian Army (FSA) rebels, launched an attack to take control of the strategic town.On July 27, 2015, the town was under the control of Kurdish YPG forces.

Seleucia at the Zeugma

Seleucia at the Zeugma (Greek: Σελεύκεια ἐπὶ τοῦ Ζεύγματος, transliterated Seleucia epi tou Zeugmatos or Seleukeia epi tou Zeugmatos) was a Hellenistic city or fortified town in the present Republic of Turkey, on the left, or south, bank of the Euphrates, across from ancient Samosata and not far from it.

It is mentioned in isolated incidents: Antiochus III the Great married a Pontic princess there in 221 BC; the Oxford Classical Dictionary ascribed this to Zeugma. Tigranes let Cleopatra Selene, the widow of Antiochus X Eusebes, be killed there. Pompey gave the city and its surroundings to Antiochus I Theos of Commagene; Pliny the Elder nonetheless ascribes it to Coele Syria. The bishop Eusebius of Samosata ruled a day's journey from his see, even to Zeugma. The name of the city is confirmed by an inscription from Rhodes, which refers to a man "of Seleucia, of those on the Euphrates".

The location of Selucia at the Zeugma is currently uncertain. It had a bridge of boats, like the well-known (and now submerged) city of Zeugma, in Osrohene further downstream; which is too far downstream, and on the wrong side of the river to be the boundary of Eusebius' see. By the same reasoning, it cannot be either of the places called el Qantara ("bridge") which were just above, and 2 km below, modern Samsat, Turkey, before its old site was also flooded, by the Ataturk Dam. The Barrington Atlas conjectures that it was at Killik, Şanlıurfa Province, Turkey 37°26′N 38°14′E), on the basis of T.A. Sinclair's Eastern Turkey : an architectural and archaeological survey, which is some 40 km downstream from Samosata, and below the dam.

The reasoning here is unclear. Sinclair shows this Killik (which means "Claypit" in Turkish), on his map at IV 172, but all four of his references to the name in his text are to a Killik at 39°23′N 37°42′E, at the headwaters of the Euphrates, near Divriği.


Suhum or Suḫu was an ancient geographic region around the middle course of the Euphrates river, south of Mari. Its known history covers the period from the middle Bronze Age (c. 2000-1700/1600 BCE) to the Iron Age (c. 1200-700 BCE). During the Bronze Age, Suhum was divided into an Upper Suhum, with its capital in Hanat, and a Lower Suhum with its capital in Jabliji. Several ancient letters place the Sutean people as having lived in the region of Suhum. In 616 BCE, Suhum subordinated themselves to the king of Babylon, Nabopolassar (ruled 626-605 BCE). Three years later, in 613 BCE, Suhum rebelled against him, which led Nabopolassar to send an expedition against Suhum.


The Tigris (; Sumerian: 𒁇𒄘𒃼 Idigna or Idigina; Akkadian: 𒁇𒄘𒃼 Idiqlat; Arabic: دجلة‎ Dijlah [didʒlah]; Syriac: ܕܹܩܠܵܬ‎ Deqlaṯ; Armenian: Տիգրիս Tigris; Դգլաթ Dglatʿ; Hebrew: חידקל‬ Ḥîddeqel, biblical Hiddekel; Turkish: Dicle; Kurdish: Dîcle, Dîjla دیجلە‎) is the eastern member of the two great rivers that define Mesopotamia, the other being the Euphrates. The river flows south from the mountains of southeastern Turkey through Iraq and empties itself into the Persian Gulf.

Tigris–Euphrates river system

The Tigris and Euphrates, with their tributaries, form a major river system in Western Asia. From sources originating in eastern Turkey, they flow by/through Syria through Iraq into the Persian Gulf. The system is part of the Palearctic Tigris–Euphrates ecoregion, which includes Iraq and parts of Turkey, Syria, Iran, Saudi Arabia, Kuwait, and Jordan.

From their sources and upper courses in the mountains of eastern Anatolia, the rivers descend through valleys and gorges to the uplands of Syria and northern Iraq and then to the alluvial plain of central Iraq. The rivers flow in a south-easterly direction through the central plain and combine at Al-Qurnah to form the Shatt al-Arab and discharge into the Persian Gulf.The region has historical importance as part of the Fertile Crescent region, in which civilization is believed to have first emerged.

Upper Mesopotamia

Upper Mesopotamia is the name used for the uplands and great outwash plain of northwestern Iraq, northeastern Syria and southeastern Turkey, in the northern Middle East. After the Arab Early Muslim conquests of the mid-7th century AD the region has been known by the traditional Arabic name of al-Jazira (Arabic: الجزيرة‎ "the island"), also transliterated Djazirah, Djezirah, Jazirah & the Syriac (Aramaic) variant Gāzartā or Gozarto (ܓܙܪܬܐ). The Euphrates and Tigris rivers transform Mesopotamia into almost an island, as they are joined together at the Shatt al-Arab in the Basra Governorate of Iraq, and their sources in eastern Turkey are in close proximity.

The region extends south from the mountains of Anatolia, east from the hills on the left bank of the Euphrates river, west from the mountains on the right bank of the Tigris river and includes the Sinjar plain. It extends down the Tigris to Samarra and down the Euphrates to Hit. The Khabur River runs for over 400 km (250 mi) across the plain, from Turkey in the north, feeding into the Euphrates.

The major settlements are Mosul, Deir ez-Zor, Raqqa, Al Hasakah, Diyarbakır and Qamishli. The western, Syrian part, is essentially contiguous with the Syrian Al-Hasakah Governorate and is described as "Syria's breadbasket". The eastern, Iraqi part, includes and extends slightly beyond the Iraqi Ninewa Governorate. In the north it includes the Turkish provinces of Şanlıurfa, Mardin, and parts of Diyarbakır Province.

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