Diyala Weir

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Diyala Weir
Diyala Weir3 USACE NWD.jpg
Iraq physical map.svg
Red pog.svg
Location of Diyala Weir in Iraq
Location 90km northeast of Baghdad, Iraq, Diyala Governorate, Iraq
Coordinates 34°03′52″N44°58′53″E / 34.06444°N 44.98139°E / 34.06444; 44.98139 Coordinates: 34°03′52″N44°58′53″E / 34.06444°N 44.98139°E / 34.06444; 44.98139
Construction began 1966
Opening date 1969
Operator(s) Ministry of Water Resources
Dam and spillways
Impounds Diyala River

Diyala Weir, also known as the Diyala Barrage, is a diversion dam on the Diyala River 90 km northeast of Baghdad, Iraq. It was constructed between 1966 and 1969. The main purpose of the dam is to divert outflow of the Hemrin Dam (11 km upstream) on the Diyala River to the Khalis and Sadr Al-Mushtarak canals for irrigation. [1]

Dam A barrier that stops or restricts the flow of surface or underground streams

A dam is a barrier that stops or restricts the flow of water or underground streams. Reservoirs created by dams not only suppress floods but also provide water for activities such as irrigation, human consumption, industrial use, aquaculture, and navigability. Hydropower is often used in conjunction with dams to generate electricity. A dam can also be used to collect water or for storage of water which can be evenly distributed between locations. Dams generally serve the primary purpose of retaining water, while other structures such as floodgates or levees are used to manage or prevent water flow into specific land regions. The earliest known dam is the Jawa Dam in Jordan, dating to 3,000 BC.

Diyala River river in Iraq and Iran

The Diyala River, is a river and tributary of the Tigris. It is formed by the confluence of Sirwan river and Tanjero river in Darbandikhan Dam in the Sulaymaniyah Governorate of Northern Iraq. It covers a total distance of 445 km (277 mi).

Hemrin Dam embankment dam

The Hemrin Dam is a dam on the Diyala River 100 km northeast of Baghdad, Iraq. The main purpose of the dam is flood control, irrigation and hydroelectric generation. Its power station has a 50 MW capacity. The dam and the attached power house were built in years 1976-1981 by the then Yugoslav company GIK Hidrogradnja. All the equipment were also supplied by the then-Yugoslav companies.

Contents

The weir and its associated extensive irrigation scheme, were designed in the 1960s by the Consulting Engineers Sir Murdoch McDonald and Partners, of High Holborn, London. At each end it incorporates irrigation canals. These and the weir are crossed by road bridges designed to take the heaviest loads, namely a tank on a wheeled transporter. The bridge works were designed by the then Captain B P Daly of Royal Engineers, who was attached to the Consultants. The weir was featured on a set of three Iraqi postage stamps.

Tank Tracked heavy armored fighting vehicle

A tank is an armoured fighting vehicle designed for front-line combat, with heavy firepower, strong armour, tracks and a powerful engine providing good battlefield manoeuvrability. They are a mainstay of modern ground forces and a key part of combined arms combat. Modern tanks are versatile mobile land weapon system platforms, mounting a large-calibre cannon in a rotating gun turret, supplemented by mounted machine guns or other weapons, such as ATGMs, or rockets. They combine this with heavy vehicle armour which provides protection for the crew, the vehicle's weapons, and its propulsion systems, and operational mobility, due to its use of tracks rather than wheels, which allows the tank to move over rugged terrain and adverse conditions such as mud, and be positioned on the battlefield in advantageous locations. These features enable the tank to perform well in a variety of intense combat situations, simultaneously both offensively with fire from their powerful tank gun, and defensively due to their near invulnerability to common firearms and good resistance to heavier weapons, all while maintaining the mobility needed to exploit changing tactical situations. Fully integrating tanks into modern military forces spawned a new era of combat, armoured warfare.

Tank transporter combination of a heavy tractor unit and mating semi-trailer used for transporting tanks

A tank transporter is a combination of a heavy tractor unit and mating semi-trailer, typically a Lowboy (trailer), used for transporting tanks. Some also function as tank recovery vehicles, the tractors of which may be armored for protection in combat conditions.

See also

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