Diyala Weir, also known as the Diyala Barrage, is a diversion
dam
A dam is a barrier that stops or restricts the flow of surface 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, aqua ...
on the
Diyala River
The Diyala (Arabic: ; ; Farsi: , ) is a river and tributary of the Tigris. It is formed by the confluence of the Sirwan and Tanjaro rivers in Darbandikhan Dam in the Sulaymaniyah Governorate of Northern Iraq. It covers a total distance of .
...
90 km northeast of
Baghdad, Iraq
Baghdad ( or ; , ) is the capital and List of largest cities of Iraq, largest city of Iraq, located along the Tigris in the central part of the country. With a population exceeding 7 million, it ranks among the List of largest cities in the A ...
. 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.
Suspended and solute loads on the Lower Diyala River
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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
A tank is an armoured fighting vehicle intended as a primary offensive weapon in front-line ground combat. Tank designs are a balance of heavy firepower, strong armour, and battlefield mobility provided by tracks and a powerful engine; ...
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.
See also
* List of dams and reservoirs in Iraq
References
External links
*
{{Diyala River dams
Dams in Iraq
Dams on the Diyala (Sirwan) River
Dams completed in 1969
1969 establishments in Iraq