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Tigris

Tigris (tī´grĬs), river of SW Asia, c.1,150 mi (1,850 km) long, rising in the Taurus Mts., E Turkey, and flowing SE through Iraq to join the Euphrates River, with which it forms the Shatt al Arab. It flows swiftly and receives many tributaries, including the Diyala, originating in the Zagros Mts., and the Great and Little Zab. The lower Tigris is connected to the Euphrates by semipermanent natural channels and by ancient canals. Much of the marshland along the lower Tigris was drained in the early 1990s; restoration began in 2003. Dams across the river divert water for irrigation.

The Tigris is subject to sudden, devastating floods, and the Wadi Ath Tharthar Scheme, Iraq's largest flood-control project, protects Baghdad and vicinity from floods in addition to irrigating c.770,000 acres (311,600 hectares) of land. Since the 1990s a series of dams has been constructed on the Tigris and Euphrates in Turkey. The plans for the Southeast Anatolia Project ultimately call for 22 dams that altogether will provide water to irrigate more than 3,700,000 acres (1.5 million hectares) of land. A series of hydroelectric power stations is also being built; by 2014 more than half the dams had been completed. It is unclear to what degree the dams and irrigation may cause problems in countries downstream that rely on the river's resources.

The Tigris is navigable to Baghdad for shallow-draft vessels; above Baghdad, rafts carry much of the trade to Mosul. Its importance as a trade artery has declined with improved road and rail connections. Basra, at the junction of the Tigris and Euphrates, is Iraq's chief port.

In antiquity, some of the great cities of Mesopotamia, including Nineveh, Ctesiphon, and Seleucia, stood on the banks of the Tigris, and the river served as an important transportation route. The Tigris floodplain was cultivated by irrigation from the earliest times; the Sumerians dug a canal from the Tigris to Lagash c.2400 BC The Tigris is called the Hiddekil in the Bible.

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Tigris

Tigris River in sw Asia. It rises in the Taurus Mountains of e Turkey and flows se through Iraq, joining the River Euphrates to form the Shatt al Arab waterway. The river is liable to sudden flooding, but there are flood-control schemes and the river irrigates more than 300,000ha (750,000 acres). The Tigris is navigable for shallow-draught vessels as far as Baghdad. Length: c.1900km (1180mi).

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Tigris

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Tigris

TIGRIS

TIGRIS (Heb. חִדֶּקֶל; from Old Persian, Tigra ; Sumerian Idigna ; Akk. Idiglat ; Aramaic Diglat ; Ar. Dijla ), a major river of S.W. Asia (c. 1,150 mi. (1,850 km.) long). The Tigris is mentioned twice in the Bible, once in Genesis 2:14, as one of the four rivers flowing out of the Garden of Eden: "and the name of the third river is Tigris, which flows east of Ashur"; and a second time in Daniel 10:4, as the scene of Daniel's major vision. In the Targum and the Talmud the Tigris is referred to as Diglat, the earlier form of the name, and Neubauer regards the name Ḥiddekel as compounded of ḥad and Dekel, i.e., "the swiftly flowing Diklah." Homiletically R. Ashi interprets it in the Talmud as compounded of ḥad and kal, "sharp and quick." The waters of the Tigris were regarded as healthy both for body and mind (Pes. 59a). Since it is mentioned with regard to creation, it was enjoined that on seeing it one had to recite the blessing "who hath made the work of creation" (Yev. 121a). The Tigris formed the boundary of Babylonia in talmudic times from Baghdad to Apamea (Kid. 71b).

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