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The Nurek (Norak) Dam is a large earthfill dam located at 38.3715 N, 69.3492 E on the Vakhsh River in the central Asian nation of Tajikistan. At 300 meters (984 ft), it is the tallest dam in the world as of 2005. (The Rogun Dam, under construction along the Vakhsh also in Tajikistan, is expected to exceed the Nurek when completed, at a planned height of 335 meters (1,099 ft)). Construction of the dam began in 1961 and was completed in 1980, when Tajikistan was still a republic within the Soviet Union. Scrivener Dam, in Canberra, Australia, was engineered to withstand a once-in-5000-years flood event A dam is a barrier across flowing water that obstructs, directs or retards the flow, often creating a reservoir, lake or impoundment. ...
The Vakhsh River (highlighted in blue) rises in the Central Asian nation of Kyrgyzstan and flows through Tajikistan before emptying into the Amu Darya. ...
2005 is a common year starting on Saturday of the Gregorian calendar. ...
Rogun Dam is a rock- and earth-filled dam across the Vakhsh River in southern Tajikistan. ...
Evolution of the Soviet Republics from 1922 to 1958. ...
Construction
The Nurek Dam was constructed by the Soviet Union between the years of 1961 and 1980. It is uniquely constructed, with a central core of cement forming an impermeable barrier within a 300 meter high rock and earth fill construction. The volume of the mound is 54 million m³. The dam includes nine hydroelectric generating units, the first commissioned in 1972 and the last in 1979. Cement is a material used for bonding other materials together, and as a binder in concrete. ...
Hydraulic turbine and electrical generator. ...
The dam is located in a deep gorge along the Vakhsh River in western Tajikistan, about 75 kilometers east of the nation's capital of Dushanbe. A small town near the dam, also called Nurek, houses engineers and other workers employed at the dam's power plant. Dushanbe (Душанбе), population 562,000 people (2000 census), is the capital of Tajikistan. ...
Look up engineer in Wiktionary, the free dictionary. ...
A power station (also power plant) is a facility for the generation of electric power. ...
Electricity generation A total of nine hydroelectric turbines are installed in the Nurek Dam. Originally having a generating capacity of 300 megawatts each, they have since been redesigned and retrofitted such that they now combine to produce 3,000 megawatts. As of 1994, this formed most of the nation's 4 gigawatt hydroelectric generating capacity, which was adequate to meet 98% of the nation's electricity needs. WWII era steam turbine used for ship propulsion. ...
The megawatt (symbol: MW) is a unit for measuring power corresponding to one million (106) watts. ...
1994 was a common year starting on Saturday of the Gregorian calendar, and was designated the International year of the Family. ...
Reservoir The reservoir formed by the Nurek Dam, known simply as Nurek, is the largest reservoir in Tajikistan with a capacity of 10.5 km³. The reservoir is over 70 kilometers in length, and has a surface area of 98 km². The reservoir fuels the hydroelectric plant located within the dam, and stored water is also used for irrigation of local agricultural land. Irrigation water is transported 14 kilometers through the Dangara irrigation tunnel and is used to irrigate about 700 km² of farmland. It is suspected that the reservoir may be causing induced seismicity. Gelmersee is a reservoir in Switzerland. ...
High-altitude aerial view of irrigation in the Heart of the Sahara (, ) Irrigation (in agriculture) is the replacement or supplementation of rainfall with water from another source in order to grow crops. ...
In seismology, induced seismicity refers to earthquakes that are caused by human activity. ...
External links - Aerial photograph showing Nurek Dam, reservoir, and spillway outfall
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